baber/WOPTO huggingface dataset:
Patent GB-785841-A (GB)
Title: A multi-step escapement device for typewriters
Inventor: LIEBMANN REINHOLD
IPC: B41J19/32
Filed: 1955-02-07
Abstract: 785,841. Typewriters. OLYMPIA WERKE AKT.-GES. Feb. 7, 1955, No. 3564/55. Class 100(4) A differential escapement mechanism for typewriters is operated by type-levers 41 engaging one. of four universal bars 34a (or 34b in case shift position) which are notched at 40 and at the other end 35 so that one of four levers 28 is operated. The operated lever 28, Fig. 6, which relates to the letter-spacing required, engages its tappets 31, to displace a ball 17 in an escapement drum 5 and operate an actuating pin 19 which has been previously displaced to withdraw into the drum 5 and thereby disengages it from a resilient stop 7. The drum 5, which is rotatable in one direction only, rotates until the newly displaced pin 19 engages the stop 7 and, by gearing 6, 12, 13 and rack 14, an appropriate movement of the typewriter carriage takes place. During a carriage return movement, pinion 6 is moved axially on shaft 4 by a control device 26 to disconnect a toothed clutch 21, between the pinion 6 and the drum 5.
Patent GB-990455-A (GB)
Title: Single turnout junction for two-rail vehicles
IPC: A63H19/32
Filed: 1964-01-28
Abstract: 990,455. Railway turnouts. W. ZIEGENFUSS. Jan. 28, 1964 [Feb. 6, 1963], No. 3628/64. Heading E1G. [Also in Division A6] A turnout for a miniature or full size two line railway has the two inner frog rails alternatively removable from the level of the track. A frog 12 may be formed with two similar curved slots 13, 14 to alternately receive a curved frog rail. In another embodiment, Figs. 5, 6 the frog rails 16, 17 are constrained for vertical movement in a box-like frog 12 and are coupled to the ends of lever arms 20, 22 rotating with a shaft 19 centrally located with respect to the frog rails, such that partial rotation of the shaft raises one frog rail and lowers the other. In other embodiments the rails are raised and lowered by cams, levers, racks and fluid pressure pistons. In the embodiment of frog 14, the rails are supported on screw jacks 43 having sprocket nuts 44 engaged by an endless chain such that movement of the chain in one direction rotates the nuts 44 in opposite hand directions to lift one rail and to lower the other rail. Electric heating means 54 may be installed in the frog box 12. (For Figure 14 see next page)
Patent GB-829751-A (GB)
Title: Improvements in or relating to heald frames
IPC: D03C9/06
Filed: 1957-02-01
Abstract: 829,751. Loom heald frames. MARUYAMA, I. Feb. 1, 1957 [Feb. 3, 1956; June 25, 1956], No. 3665/57. Class 142(2) A heald frame comprises an inner frame carrying the heddle wires mounted in an outer frame attached to the shedding mechanism, the inner frame being releasable from the outer frame to facilitate changing the warp. In one embodiment, the outer frame comprises members, 1, 1<SP>1</SP>, 2, 2<SP>1</SP> and the inner frame comprises members 4, 4<SP>1</SP>, 5, 5<SP>1</SP>. The members 4, 4<SP>1</SP> engage recesses in the members 2, 2<SP>1</SP> and are retained therein by latches 8 held in the locking, and in the free, position by springs 10. The latch may have a cam face on its inner surface which presses the bar 4 down into its recess. In another embodiment, the inner frame comprises top and bottom members 21 and side members 5, and also rods 4, on which the heddle wires are mounted and which lie inside the top and bottom members. The members 4 may be of U or H section and the heddle wires are freely movable thereon. Movable catch members permit heddle wires to be added or removed.
Patent GB-704587-A (GB)
Title: Improvements in cobalt containing alloys
IPC: C22C19/07
Filed: 1952-02-12
Abstract: A high temperature creep-resistant alloy has the following composition: C 0.05-1.0 per cent. Mn 0.2-1.5 per cent. Si 0.2-1.5 per cent. Ni 12.0-15.0 per cent. Cr 16.0-24.0 per cent. W 6.0-12.0 per cent. B 0.01-0.3 per cent. Fe 0-10.0 per cent. Co the balance.
Patent GB-168847-A (GB)
Title: Process for rendering cement, mortar, concrete and the like suitable for use in stopping up incursions of water or for waterproofing or hydraulic or other similar purposes
IPC: C04B28/26
Filed: 1921-02-02
Abstract: 168,847. Winkler, K. Aug. 30, 1920, [Convention date]. Concretes and mortars; cements, treating after manufacture.-Cement, mortar, and concrete are rendered waterproof, their adhering power is increased, and their setting and hardening accelerated by the addition to the gauging water of potassium silicate in quantities containing 4-20 parts of SiO2 to 100 parts of the dry cement or the like. The action of the potassium silicate ma.y be supplemented by the addition to the solution, or in some cases to the dry cement, of small quantities of one or more of the following substances :-calcium nitrate, strontium nitrate, antimony oxide, potassium chromate or bichromate, potassium ferro- or ferri-cyanide, manganese carbonate, alkali, particularly potassium hydroxide, calcium carbonate, borax, bauxite, coke derived from tar, and sugar.
Patent GB-138890-A (GB)
Title: Improvements in thrust bearings
IPC: F16C17/06
Filed: 1920-02-09
Abstract: 138,890. Kingsbury, A. March 14, 1918, [Convention date]. Thrust bearings. - In a thrust bearing of the pivoted-block type, two bearing shoes are placed on one or both sides of a thrust collar on a shaft and are supported by rocking equalizing-plates which are divided so as to be removable transversely from the shaft. The shoes 15, Fig. 2, rock on rounded studs 22 on a plate 19 formed with two knife-edges 20 in diametrical alinement and at a small angle to the line joining the studs 22. The knife-edges rock on a plate 17, Fig. 5, supported in the casing and formed with a block 18 filling a gap in the plate 19, Fig. 4. The parts 17, 19 can be moved on to or from the shaft transversely. Flanges 21, 24 on the two parts form a channel for guiding oil on to the shoes 15. In a modification, applied to vertical shafts, a divided equalizing-ring rocks on knife-edges arranged at right-angles to the line joining two studs supporting the shoes, and each shoe may be replaced by a pair of shoes mounted at the ends of an arm rocking on central knife-edge. Fig. 13 shows a modification in which the studs 88 supporting the shoes are placed midway along bridge arms 87 resting on the ends of equalizing- bars 85 which rock on knife-edges 86. Screws 91 passing loosely through a flange 89 prevent the arms 87 from overturning. Each arm 87 may be attached at one end to one. of the bars 85. In another modification, an arm supporting one of the shoes bridges the gap in a ring such as that shown in Fig. 4.
Patent GB-469778-A (GB)
Title: Improvements relating to mincing machines
IPC: B02C18/36
Filed: 1936-02-10
Abstract: 469,778. Mincing-machines. WOLLMER, L. Feb. 10, 1936, No. 3994. [Class 28 (ii)] In a mincing-machine, a spider 6, on a keyed or squared part of the spindle extending from the worm 5, has slots 8 which receive semi - circular blades 11, the bearing surfaces of the slots being shaped to conform with the contacting curved parts 12 of the blades which may thus rock to accommodate themselves to irregularities in the perforated disc 3. The blades are disposed substantially tangentially to the spindle and are at right-angles to the disc 3. In a modification, the blades are mounted in the disc 3 between the perforations thereof, the spider 6 being replaced by a second perforated plate rotating with the spindle and bearing on the blades. Specification 414,330 is referred to. According to the Provisional Specification, the rotating member carrying the blades comprises a disc with, preferably, three elongated arcuate holes. The blades are received in tangentially disposed slits, and at the outer ends of the slits are tapped holes which receive screws which bear against the arcuate edges of the blades and enable them to be adjusted to compensate for wear.
Patent GB-1221072-A (GB)
Title: Capacitive measurement of the level of material in a container
Inventor: FRANZ HANS-JUERGEN
IPC: G01F23/26
Filed: 1968-01-25
Abstract: 1,221,072. Measuring fluid level electrically. ENDRESS & HAUSER G.m.b.H. & CO. Jan. 25, 1968 [Feb. 15, 1967], No. 4013/68. Heading G1N. The level of fill of a container B is determined by measuring the capacitance C A  between a centre probe A and the container by means of a circuit 1 in which the capacitance is charged in one direction, during alternate half cycles of a source G, by current supplied from a transformer secondary S via a diode D, and is charged in the opposite direction, during the intervening half cycles, by current through a transistor T from a capacitor C across a D.C. source V B  , the current drawn from the source V B  being proportional to capacitance C A  and being measured by a meter M. In accordance with the invention a compensating circuit 2 is provided for setting the meter reading to zero for a given level of fill in the container. In the arrangement illustrated, the compensating circuit is identical to the measuring circuit except that adjustable capacitor DR replaces capacitance C A  and the polarity of source V B , diode D<SP>1</SP> and transistor T1 is opposite to that of source V B , diode D and transistor T. The currents from the two circuits both flow through the meter and adjustment of DR permits the meter reading to be set to zero for a given level of current in circuit 1 corresponding, for example, to an empty container. In a second arrangement, Fig. 3 (not shown), the compensating circuit comprises only a transistor, the base bias of which is adjustable by a potentiometer. In a third arrangement, Fig. 4 (not shown), the current from the measuring circuit is applied to the input of an amplifier having an indicator connected in the output, whilst the compensating circuit is an adjustable constant-current source connected to apply a current of opposite polarity to the amplifier input. In each of the three arrangements provision is made to adjust the sensitivity of the measuring circuit.
Patent GB-1240933-A (GB)
Title: Sealing assemblies for rotary ball valves
IPC: F16K5/06
Filed: 1969-01-23
Abstract: 1,240,933. Valves. B. C. RICHARDS & CO. PTY. Ltd. 23 Jan., 1969 [29 May, 1968], No. 4024/69. Heading F2V. A rotary ball valve comprises a tubular body 10 with a constant inner and outer diameter, an apertured ball 15, and sealing assemblies A and B, each formed by a seat ring 21 of, e.g. P.T.F.E. or metal, a retaining ring 20 with a conical outer surface leading to a cylindrical surface, a wedge ring 22 of deformable material e.g. P.T.F.E., a rigid backing ring 19 that is loaded only on to the rear face of the ring 22 by a spring 18, with a retaining ring 17 and circlip 16. The rings 20 and 21 can be formed integrally of the same material. the joint is to be effected between metal pipes 1, 3, e.g. of stainless steel, the insert 5 is of solder or brazing material, the insert being slightly longer than the tapered surfaces (Fig. 2, not shown). The width of the bonding material in the insert varies from 0À005 inch at its outer end to 0À00 inch at its inner end. The tapers may be from 4 to 20 degrees. In the case of plastics pipes an epoxy resin may be used as a bonding agent.
Patent GB-797312-A (GB)
Title: An improved transmission chain for conical or v-type pulleys
IPC: F16G5/18
Filed: 1956-02-09
Abstract: 797,312. Link belts. REIMERS, W. Feb. 9, 1956 [Feb. 18, 1955], No. 4056/56. Class 80 (1). In a link belt of the type described in Specification 686,714 for use with V-pulleys the links 1 are made in one piece with a central body 2 and a plurality of ears 3 for interengaging with the ears of the adjacent links and coupling by pins 5. Cylindrical surfaces 8 are provided for supporting the pressure rings 9 which may each be located by one or more spring rings 10. The link pins 5 may be replaced by pairs of rocking pins. The pressure rings serve also for retaining the link pins in position. Reference has been directed by the Comptroller to Specification 686,714.
Patent GB-865995-A (GB)
Title: Improvements in hydraulically operated breakers for minerals
Inventor: CLARK HARRY RUSSELL
IPC: E21C37/12
Filed: 1959-02-05
Abstract: 865,995. Fluid-pressure blasting devices. QUALTER, HALL & CO. (SALES) Ltd. Feb. 4, 1960 [Feb. 5, 1959], No. 4108/59. Class 9(1). A fluid pressure operated blasting device comprises a cylindrical container A with venting ports G at one end closed by a valve E connected by a rod H to a piston J slidable in a cylinder K at the other end. A resilient tube M sealed to the container at both ends surrounds the rod H and provides a high pressure chamber D surrounded by an annular air space N. The container is enclosed in an outer shell O of tough resilient material extending over a sleeve P, which serves to tamp the device in a borehole. By means of a nut Q, the sleeve is compressed longitudinally and so expands radially. Low pressure fluid is supplied to the space V between the shell O and the container through a port U, after which high pressure fluid is forced into the chamber D through a port S. When a predetermined pressure is reached fluid under pressure is admitted to the cylinder K through a port T and forces the piston outwardly, so lifting the valve E and allowing the high pressure fluid to enter the low pressure fluid. Modifications in the valves and in the construction of the container A are described.
Patent GB-1455896-A (GB)
Title: Processing steamer for tubular knitted fabric
IPC: D06C5/00
Filed: 1974-01-29
Abstract: 1455896 Finishing fabrics SAMCOE HOLDING CORP 29 Jan 1974 [30 April 1973] 04156/74 Heading D1S Apparatus for treating tubular knitted fabric comprises an internal spreader 10 for conveying the fabric along a generally horizontal processing plane, a pair of steam boxes 16, 17 one above and one below the processing plane to direct steam onto the fabric, means forming an enclosed processing chamber 15 containing the steam boxes 16, 17 and substantially enclosing a portion of the spreader 10 inclusive of that passing between the steam boxes 16, 17, and means for withdrawing steam downwardly through the fabric. The spreader 10 comprises internal belts driven by external drive rolls and may comprise two stages, an entry stage overfeeding the fabric to a processing stage in which the fabric is steamed. Each box 16, 17 includes a steam pipe 18 having distributing apertures 20 and comprises a housing 21 with an inner chamber member 30. Elongate slots 36, 37, 36a, 37a direct steam across the full width of the fabrics. Condensate is removed through drainage openings 40, 45 in the boxes 16, 17, respectively. Insulating slabs 48 secured by spaced metal straps 49 are provided on the box 16. The chamber 15 comprises upper walls 50, 51, 52 insulated by insulating panels 54 between sheet metal plates. The walls 51, 52 are pivotable about hinges 55, 56 to facilitate access to the interior of the chamber 15. Side walls 63, 64 are provided with openings 65, 66 for the passage of the fabric 14 on the spreader 10, flexible seals comprising opposed pairs of soft brushes 75 being provided. Baffle walls 67, 68, 69 are spaced from lower walls 60, 61, 62 of the chamber 15 and the channel 72 therebetween is connected to an exhaust outlet 75 connected to an exhaust blower (not shown) arranged to maintain a slight positive pressure within the chamber 15.
Patent GB-270809-A (GB)
Title: Improvements in or relating to the purification of acetic anhydride
IPC: C07C51/573
Filed: 1926-02-13
Abstract: 270,809. British Celanese, Ltd., and Skertchly, W. P. Feb. 13, 1026. Acetic anhydride contaminated with sulphur or sulphur compounds when prepared, for example, from acetates with sulphur or sulphur compounds and halogens or sulphur halogen compounds, is purified by treatment with sodium acetate or other metallic acetate and chlorine. The acetates are preferably used anhydrous and in powdered form.
Patent GB-907769-A (GB)
Title: Improvements in or relating to bonded plastics
Inventor: CAWLEY STEPHEN ROBERT
IPC: B32B27/00
Filed: 1960-02-05
Abstract: 907,769. Laminates. TOUGH PLASTICS Ltd. Jan. 18, 1961 [Feb. 5, 1960], No. 4201/60. Addition to 907,768. Class 140. A layer of glass- or other fibre-reinforced polyester or epoxy resin is bonded to a layer of vinyl chloride or vinylidene chloride polymer or copolymer by applying to the latter layer a solvent such as tetrahydrofuran capable of readily breaking up its surface, applying a layer of woven, knitted or felted glass, synthetic (including cellulosic) or other fibres, applying the layer of fibre-reinforced polyester or epoxy resin, and curing the resin. The intermediate fibrous layer may be applied before the solvent, the latter being brushed on to it, or solvent ma y be applied both before and after this layer. The invention is applicable to covering pipes, rods and containers of polyvinyl chloride. The polyester resin is preferably derived from maleic acid.
Patent GB-416414-A (GB)
Title: Improvements in and relating to the control of alternating current electric motors
IPC: H02P1/34
Filed: 1933-02-11
Abstract: 416,414. Control of A.C. motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Feb. 11, 1933, No. 4260. Convention date, Feb. 11, 1932. [Class 38 (iii).] A starting arrangement for three-phase motors includes rotor resistances which are successively short-circuited by magnetic timedelay contactors having their operating coils connected through rectifiers to parts of the resistances. In the arrangement shown, closure of a master switch A completes energizing circuits for a time controlled contactor Z1, through a rectifier G1 and statorM of the motor and a main contactor F for the motor. Upon closure of the contactor F, the winding of contactor Z1 is short-circuited so that its armature falls away after a time delay and energizes a rotor contactor L1 which thereupon short-circuits one stage of the rotor resistance W. A second time controlled contactor Z2 connected to resistance W through a rectifier G2 is consequently de-energized, and, after a time interval, energizes a second rotor contactor L2 to short-circuit the second stage of resistance W. A third time controlled contactor Z3 connected across different phases through two rectifiers G3, G4 subsequently operates to close a third rotor contactor L3 cutting out all of resistance W. In a modification the energizing windings of the successive contactors, are connected across a different part of one phase of the rotor resistance.
Patent GB-1003067-A (GB)
Title: Wear or play take up device for hydraulically actuated parts
IPC: F16D65/22
Filed: 1963-02-04
Abstract: 1,003,067. Fluid-pressure brakes. ANDRE CITROEN S.A. Feb. 4, 1963 [Feb 8, 1962], No. 4381/63. Heading F2F. Automatic wear compensating means for a brake, clutch, or other mechanism operated hydraulically by a piston and cylinder device, comprises a deformable member within the cylinder which is provided with one or more lips adapted to operate as a one-way valve or valves, allowing flow in the direction to operate the brake or other mechanism but not in the release direction, movement in the latter direction being confined to the permitted deformation of the lip or lips. In one embodiment, Figs. 1 and 4, deformable member 6 is anchored by a circlip 7 in a cylinder 1 containing brake actuating pistons 2 provided with cups 3. Member 6 comprises two circular lips 8 enclosing an annular space with which an inlet port 4 communicates, the usual bleed port being connected by diverging passages to the spaces between the lips and the cups 3. During the applying movement fluid supplied to the inlet port 4 can pass the lips but release movement is limited by the permitted deformation of lips 8 to the chain-line position, Fig. 4, bevels 8a preventing port 4 from being covered. In a second embodiment, Fig. 5, one piston cup 3a is provided with a lip 7a enclosing an annular space communicating with an offset inlet port 4a, the bleed port being offset to the opposite side of the centre of the cylinder.
Patent GB-720720-A (GB)
Title: Improvements in dentifrices containing chlorophyll
IPC: A61K8/58
Filed: 1953-02-17
Abstract: A dentrifice comprises a water-soluble chlorophyll derivative and a polishing agent mixture including a calcium or magnesium phosphate or carbonate and a water-insoluble salt of a polymetaphosphoric acid, which may contain up to 4 per cent. of water-soluble polymeta phosphates.  The dentrifice contains 0.01 to 2.0 per cent. chlorophyll (based on pure chlorophyll derivative) and (a) for tooth pastes 50 to 60 per cent polishing agent (b) for tooth powders 95.5 to 98 per cent. polishing agent, is preferred. 5 to 50 per cent of the insoluble polymeta phosphate is replaced by the other polishing agents.  The dentrifice is buffered at pH 6 to 7.  Specified chlorophyll derivatives are chlorophyllins, isochlorophyllins, pheophorbides, phytochlorins and phytorhodins prepared from natural chlorophylls a and b e.g. sodium and potassium magnesium chlorophylls, sodium and potassium copper or iron chlorophyllins; chlorophyll extracts preferably of 70 to 100 per purity; chlorophyll preparations containing the sodium and potassium salt of the copper, magnesium or iron complexes of phytochlorin e and phytorhodin g. Preferred polymetaphosphoric acid salts are the water-insoluble alkali metal salts especially those of sodium or potassium e.g. Maddress salt and Kurrol's salt.  Specified essential polishing agents are calcium carbonate, magnesium carbonate, dicalcium phosphate, tricalcium phosphate, dimagnesium phosphate and trimagnesium phosphate.  Optional ingredients are (a) other polishing agents e.g. bentonite, kaolin, ground bone meal, calcium sulphate, alumina gel, pumice, silica, whiting, tin oxide, hydrated magnesia, magnesium trisilicate, magnesia and talc; the wetting agents e.g. soap, diglycol laurate, diglycol stearate, sulphonated alcohols e.g. sodium lauryl sulphate, sulphonated oils and glycostearin; (c) buffers; (d) flavouring and sweetening agents e.g. saccharin; (e) preservatives (f) oxygen releasers such as puborates; (g) binders such as gum acacia and tragacanth, Indian gum, Irish moss, agar agar starch, locust bean gum, silica gel, pectin, clays and petrolatum; and (h) carriers and softeners such as water, glycerin, ethyl alcohol, mineral oil, syrup, glucose, invert sugars, glycols and honey.  Specification 601,801 is referred to.
Patent GB-306087-A (GB)
Title: Improvements in cover lining apparatus
IPC: B21D51/46
Filed: 1929-02-09
Abstract: 306,087. Dewey & Almy Chemical Co., (Assignees of Dewey, B.). Feb. 15, 1928, [Convention date]. Stoppers, making.-In coating-machines in which an annular band of lining compound is applied to the inner surface of caps or covers for receptacles by a nozzle disposed eccentrically above a rotating chuck on which the cap is held by an actuator or chuck-pad and the latter, by intermediate mechanism, releasing a valve in the nozzle, the chuck-pad is moved out of the path of an advancing cover without operating said mechanism to deliver the lining compound. The valve in the nozzle is opened only when a cap is in position. A cap delivered from a shoot 2 is advanced along a guideway 1<a> on to a chuck 15, where it is held by a stop member 79. The chuck-pad 56 descends on to the cover, and the chuck 15 rises and rotates, the valve in the nozzle 17 being opened, to deliver the lining compound by upward movement of the rod 54 acting through levers and a connecting rod 21. After a. prearranged number of revolutions the chuck 15 and chuck-pad 56 descend and the valve in the nozzle 17 is closed, and the stop member 79 is moved out of operation. The cam 74 then lifts the chuck-pad 56 and fingers 84 advance and remove the lined cap. When a cap fails to advance on to the chuck 15, the upward movement of the latter causes' the chuck-pad 56 to enter the cavity 16, and'the valve in the nozzle 17 is not opened. The stop member 79 and associated mechanism may be replaced by a gripping or self-centring chuck or by a centring chuck-pad, for example of conical shape. Electrical contact elements or pneumatic devices may replace the corresponding mechanical parts'.