baber/WOPTO huggingface dataset:
Patent GB-1437433-A (GB)
Title: Hydrostatic transmission systems
IPC: F16H47/02
Filed: 1973-07-23
Abstract: 1437433 Controlling winches RICHIER 23 July 1973 [28 July 1972] 35093/73 Heading B8B [Also in Division F2] In a hydrostatic transmission for raising and lowering a load, comprising a variable displacement pump 2 and a motor 3, a further, auxiliary, pump 9 is provided which delivers through a line 13 and check valve 14 to the high pressure line 8 between pump 2 and motor 3 and through a line 12 and a variable throttle 15 to a reservoir 10, the variable throttle 15 being variable electrically by a controller 18 which receives an input from a sensor 20 (or alternatively 46) such as a strain gauge to measure the load 22 and an input from a sensor 27, indicative of the pressure in line 8 and compares these to produce a pressure in line 8 by variation of throttle 15 so that, with the pump 2 displacement at zero, a brake 29 can be automatically released and the load 22 held up by hydraulic pressure alone. For this to happen a lever 37 is moved from a position A to a position B, to close a switch 39 and actuate a relay 40 to close the switch 17 in the circuit 16 to valve 15. For slow movement up or down of the load 22 the lever 37 is moved a little way towards positions C or D, this actuating a potentiometer 42 which gives a further input to controller 18 and varies valve 15 to increase or reduce pressure in line 18. Further movement of lever 37 toward positions C or D causes variation in the displacement of pump 2 and the pump 2 drives the motor 3, this variation being via a controller 43 which also receives an input from a tachometer 45 to maintain a constant lifting or lowering speed. The arrangement is such that any variation of the load 22 during slow movement, or with the load stationary, is sensed by sensor 20 (or alternatively 46) and compensated for. The sensor 20 is between a pivotable frame supporting the motor 3 and a fixed bracket 34, and the alternative position 46 shown is at the end of a cable 24 supporting the load. A feed pump 5 and pressure limiting valves 4 are provided for the transmission. Fig. 3 shows an embodiment of a connection between motor 3 and a winding drum 25 in which the motor rotates when the drum is stationary, the motor providing one input 32 to differential gearing 50 whose casing 52 is the input to a reduction gear-box 35 driving the drum 25, the other input 54 to the gearing 50 being connected to an hydraulic coupling 56 and a brake 55, the motor 3 driving the gearing 35 directly when brake 55 is engaged, and the coupling 56 ensuring that the motor 3 must rotate to hold the drum and the load connected to it stationary when the brake 55 is disengaged. The hydraulic coupling 56 may be replaced by an eddy current coupling (Fig. 5, not shown) and in either case one part of the coupling may be driven instead of attached to a fixed casing as shown (Figs. 4 and 6, not shown). A yet further embodiment (Fig. 7, not shown) has the coupling replaced by an hydraulic pump, pumping around a closed circuit through an electrically controlled pressure limiting valve.
Patent GB-1057750-A (GB)
Title: Improvements in or relating to mountings
Inventor: DONALDSON JOHN MARSHALL
IPC: F16F9/30
Filed: 1964-08-28
Abstract: 1,057,750. Resilient mountings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 9, 1965 [Aug. 28, 1964], No. 35286/64. Heading F2S. A resilient mounting comprises at least one pair of U-shaped metal strips or leaves 1, 2 spaced at their free ends by a plate 6 and the space therebetween being filled with a viscous or visco-elastic material 8 such as a mixture of Henley's compound yellow and about 10-20% by weight of asbestos fibres. The free ends may be riveted to further plates 4, 5 such that the mounting can be secured between the load to be carried and a foundation. Examples of other fillers are given in the Specification. The leaves 1, 2 are finally wrapped in upholsterers' black tape 9.
Patent GB-801680-A (GB)
Title: Method of producing trichloroethylene from tetrachloroethane
IPC: C07C17/25
Filed: 1956-11-20
Abstract: The invention comprises a method of thermally dehydrochlorinating sym-tetrachloroethane to produce trichloroethylene which comprises conducting the thermal dehydrochlorination over an extended period of time whereby to effect substantial conversion of the symmetrical tetrachloroethane to trichloroethylene, introducing 50-85 per cent of the total heat input to the tetrachloroethane while it is undergoing thermal dehydrochlorination during the first third of said period, and subsequently introducing the balance of the heat imput during the latter two thirds of the period.  Preferably, vaporized tetrachloroethane is passed in a continuous stream through a series of parallel heated nickel tubes of at least 1/2 inch diameter and of total length at least 200 times the diameter, the tetrachloroethane being maintained during dehydrochlorination between 850 DEG  and 1100 DEG  F., with 50-85 per cent of the total heat input introduced during passage through the first third length of the reactor.  The gaseous products emanating from the reactor are cooled, the hydrogen chloride passing on as a gas, and the condensate fractionally distilled.  Recovered tetrachloroethane may be recycled. Advantageously, the percentage conversion of tetrachloroethane to trichloroethylene is restricted to 75-85 per cent by adjusting the operating conditions.  An example illustrates the method of operating the process.  Specification 573,532, [Group IV], is referred to.
Patent GB-1358665-A (GB)
Title: Method of forming compacts
IPC: B22F3/04
Filed: 1972-07-28
Abstract: 1358665 Powdered metal compacts R M KOERNER 28 July 1972 [25 Jan 1972] 35418/72 Heading B5A Green compacts are formed by placing a batch 9 of particulate material in an isostatic mould 3, applying an isostatic pressure # 3  along all but an axis of the mould and applying an axial pressure # 1  which exceeds the isostatic pressure # 3  along the axis so as to produce a controlled stress within the batch while not exceeding the failure shear. The isostatic pressure # 3  may be applied by passing pressure air through a line 5. The axial pressure # 1  may be applied by a load piston 10, 12. The isostatic and axial pressures may be applied simultaneously (graph 1, Fig. 9) or sequentially (graph 2, Fig. 9). The full isostatic pressure # 3  may be applied initially and then the axial pressure # 1  (graph 3, Fig. 9). The isostatic pressure # 3  may be increased to the ultimate normal stress and then reduced at the rate at which the axial pressure # 1  is applied (graph 4). Finally the isostatic pressure # 3  may be raised above the final normal stress and then reduced at a rate greater than the rate at which the axial pressure # 1  is increased (graph 5). An air bleed 7 is provided to allow air within the batch 9 to escape. The particulate material may be non- metallic or metallic, e.g. Al, Ni, Cu, W or sponge, irregular or spherical Fe powder. The green compacts may be subsequently sintered, e.g. Fe in dry H 2  at 1000‹ F. for 1 hr.
Patent GB-373950-A (GB)
Title: Improvements in photographic and projection lenses
IPC: G02B13/00
Filed: 1931-12-23
Abstract: 373,950. Lenses. KAPELLA, Ltd., 104, Stoughton Street, Leicester. Dec. 23, 1931, No. 35523. Convention date, Dec. 26, 1930. [Class 91 (i).] In a photographic or projection lens of the kind described in Specification 157,040, [Class 97 (i), Optical systems &c.], consisting of two compound dispersive members with their concave surfaces facing one another, placed between outer collective members, one of the collective members consists of two separate collective components each having its exterior surfaces of unequal curvature. Preferably the rear member, i.e. that on the shorter conjugate side, is so divided, as shown, and the ratio of the radii of curvature of each separate component is at least three to one, the more deeply curved exterior surfaces being placed facing each other. Numerical data are given for the example shown having a focal length of 1", aperture f/1.4, and a flat field of 40‹, and corrected for spherical and chromatic aberrations, coma, astigmatism, and distortion.
Patent GB-1082374-A (GB)
Title: Improvements in or relating to mechanical biassing arrangements
Inventor: KNECHT GEORGE WILLIAM
IPC: G05G5/05
Filed: 1965-08-19
Abstract: 1,082,374. Constant-force spring mechanisms. MURRAY MANUFACTURING CORPORATION. Aug. 19, 1965, No. 35610/65. Heading F2S. A member 17, e.g. a lever, cam, armature &c., in a circuit-breaker mechanism, and which is angularly movable on a fixed pivot or shaft 10 is biased into its " off " position by means of a helical spring 13 which is accommodated mainly in an opening 12 in the member 17 with its upper end received in a pie-shaped cut-out segment of the pivot 10. Within a predetermined angle of displacement the spring force varies inversely as the moment arm, as illustrated in Figs. 2a, 2b (not shown), so that the torque remains substantially constant. The member 17 may be fixed and the shaft or pivot 10 angularly displaceable.
Patent GB-1522894-A (GB)
Title: Anti-sunburn compositions containing 2-phenyl-indole derivatives
IPC: C07D209/30
Filed: 1976-08-27
Abstract: 1522894 Cosmetics vehicle L'OREAL 27 Aug 1976 [29 Aug 1975]. 35797/76 Heading A5B [Also in Division C2]  1. A composition suitable for use in cosmetics comprises a vehicle suitable for use in cosmetics and at least one compound of the general formula: in which: R, denotes hydrogen, an alkyl radical containing 1 to 12 carbon atoms or an optionally branched carboxyalkyl radical containing I to 4 carbon atoms; R 2  denotes hydrogen, an alkoxy radical containing 1 to 4 carbon atoms, an alkyl or carboxyalkyl radical containing 1 to 4 carbon atoms, or a halogen atom, x denotes 1, or when R 2  denotes an alkyl or carboxyalkyl radical, an integer of at least 1, R 3  denotes hydrogen, a carboxyalkyl radical containing I to 4 carbon atoms or a -S-R 8  radical, in which R 8  is an alkyl radical containing I to 12 carbon atoms or in which R 9  denotes one of the radicals: in which R 10  is an alkyl radical containing 1 to 4 carbon atoms,  in which each of R 11  and R 12  independently denotes hydrogen or an alkyl radical containing 1 to 4 carbon atoms, or  in which each of R 13 , R 14  and R 15  independently denotes an alkyl radical containing 1 to 4 carbon atoms and X denotes an anion of an inorganic or organic acid, and m is 0 or I and n is 0, 1 or 2, each of R 4 , R 5 , R 6  and R 7  independently denotes hydrogen, or an alkyl, carboxyalkyl, or alkoxy radical containing 1 to 4 carbon atoms, provided that if R 3  denotes hydrogen at least one of the radicals R;, R 2 , R 4 , R 5 , R 6  and R; is not hydrogen, in an amount of at least 0.05% by weight based on the total weight of the composition.
Patent GB-1478015-A (GB)
Title: Heat exchanger
IPC: F28F21/06
Filed: 1973-07-27
Abstract: 1478015 Tube plates; headers DELANAIR Ltd 22 July 1974 [27 July 1973] 35877/73 Heading F4S [Also in Division F2] In a fin and tube heat exchanger, the tube ends 6 are received in a composite tube plate structure 4 comprising a layer 24 of epoxy resin filled with glass spheres, beads, or fibres and a resilient plastics membrane 11 covering the header tank side of the resin layer 24. The edges of tube accommodating holes 12 in the membrane 11 are formed with inwardly inclined lips 14 which sealingly grip the tube ends. The resin, which is cast and cured in situ, shrinks on curing to provide a bond with the tubes. Thea header tank 2, which may be made of rigid plastics material or a suitably treated metal such as resin coated steel, is formed with internal baffles 30 the ends of which pass through the membrane 11 and are embedded in the resin layer 24. The membrane 11 may be formed integrally with the walls (20<SP>1</SP>) of the header tank (2<SP>1</SP> Fig. 2, not shown); in this case the header cover (35) is separately formed and its edge is rolled over a rib (34) on the outer edges of the wall (20<SP>1</SP>) to form a seal. When tubes of flattened cross-section are employed (Figs. 3-5, not shown), the tube ends may be soldered into corresponding holes in a metal plate (36) which is embedded in the resin layer (24); this prevents crushing of the tubes due to the compressive force of the resin as it shrinks on curing. Side plates (40) may be fitted to the heat exchanger, the ends of said plates (40) being embedded in the resin layer (24).
Patent GB-1393416-A (GB)
Title: Dispersal of effluent gases
IPC: F23J11/00
Filed: 1972-08-02
Abstract: 1393416 Chimneys IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Aug 1973 [2 Aug 1972] 36012/72 Heading F4J A chimney 4 has, within its upper end and protruding from the mouth thereof, means 5, 6 for dividing a column of gas flowing up the chimney into a plurality of streams. The dividing means are such that they do not alter the columns direction of flow and the streams are discharged into the atmosphere at a plurality of heights. The dividing means may comprise two coaxial tubes 5, 6 as shown, or may comprise a single tube coaxial with the chimney, Fig. 1 (not shown); a tube attached to the internal wall of the chimney, Fig. 4 (not shown); or a pair of tubes side by side in and projecting from the chimney, Fig. 3 (not shown). The tubes may be of stainless steel. Examples of chimney cross-sections are circular and rectangular. The chimney may be used in apparatus for producing nitric acid.
Patent GB-733609-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B29/06
Filed: 1953-12-30
Abstract: 733,609. Sewing-machines. WILLCOX & GIBBS SEWING MACHINE CO., Ltd., (Willcox & Gibbs Sewing Machine Co.). Dec. 30, 1953, No. 36150/53. Class 112. Presser feet. A presser foot for use in felled seaming comprises a shoe unit having a central shoe 31 adapted to engage the top of the seam and provided with openings 58 for needles N, and side shoes 32, 33 adapted to engage the adjacent fabric, the unit being mounted for pivotal movement about a first transverse axis, provided by a pin 36, and the side shoes being pivotally connected to the central shoe for independent movement relatively thereto about a second transverse axis, provided by a pin 53. Pin 36 passes through elongated holes in the side shoes and is carried by a pair of plates 23, 24 pivoted by pins 21, 22 to the lower end of a bracket 18, the latter being adjustably secured by screws 14, 15 to a bracket 11 clamped to the end of a presser bar 10. Pins 46, 50, lodged respectively in notches formed in the rear of the side shoes and a notch formed in the front of the centre shoe, are interconnected by a coil spring 45 for raising the forward and upturned portions of the centre shoe and depressing the forward portions of the side shoes. A rearwardly-tapering channel is thereby formed between the shoes for accommodating the felled seam, the undersurface of the centre shoe being cut away as at 31a, and the right-hand shoe 32 being chamfered internally as at 32a to assist the guiding of the seam. A plate 61 is secured to the centre shoe and is provided with openings 62 for the needles. A fourth and rearwardly positioned shoe 64 is pivoted by pins (not shown) to the plates 23, 24. The latter are bridged by a plate-like member 70 secured thereto. A finger 78 depends from member 70 and abuts the bottom of a cup-shaped member 75 which rests on the rear shoe. A compression spring 77 encircles the finger and abuts the base of the cup and the lower edge of member 70. Pivotal movement of the front shoe assembly is limited by the turned-up front edge 79 of the rear shoe and tongues 80 projecting forwardly from member 70. Lifting presser bars. A rotatable sleeve 85, mounted on a spindle 86 adjustably secured in the frame F of the sewing-machine, is provided at one side with a finger 87 which underlies an abutment 88 on the bracket 11, and on the other side with an arm 89 for turning the sleeve to engage the members 87, 89; whereby the presser bar is lifted against spring means (not shown). A bracket 91, also pivoted on the spindle 86, is provided with a finger 93 which extends through an aperture 94 in member 70; and a coil spring 92, having respective ends engaged with the spindle 86 and bracket 91, biases the latter for pressing the rear shoe downwardly. A lug 96 provided on bracket 91 overlies an adjustable stop-member 97 carried by the sleeve 85. Rotation of the latter thereby serves initially to lift the front shoes and subsequently, after engagement of members 96, 97, to lift the rear shoe.
Patent GB-1425622-A (GB)
Title: N-carbamoyl cyanoacetamide derivatives
IPC: A01N47/06
Filed: 1973-03-15
Abstract: 1425622 Carbamoyl acetamide derivatives E I DU PONT DE NEMOURS & CO 15 March 1973 [15 March 1972 7 Feb 1973] 36155/75 Divided out of 1425621 Heading C2C Novel compounds of the Formula (I): wherein R is a C 1-13  alkyl group optionally substituted by C 2-4  alkoxycarbonyl, C 2-4  acyl, C 2-4  acyloxy or cyano; a C 1-4  acyl group or a C 7-10  aralkyl group; and R 1  and R 2  are hydrogen atoms or C 1-4  alkyl groups; are obtained by alkylating, acylating or aralkylating compounds of the formula The compounds of the Formula I above have pesticidal properties.
Patent GB-993509-A (GB)
Title: Improvements in or relating to electrical circuits
Inventor: SMITH GEOFFREY GEORGE
IPC: H04L12/00
Filed: 1963-09-13
Abstract: 993,509. Telegraphy. STANDARD TELEPHONES & CABLES Ltd. Sept. 13, 1963, No. 36171/63. Drawings to Specification. Heading H4P. [Also in Division G4] In a telegraph system in which a waystation is connected over a duplex line to a central station both stations comprise means for transmitting and receiving messages in 7-bit start-stop code and second means for transmitting an occasional message, relating to reservations for example, which has priority over normal messages. A priority message is preceded by a space nominally two characters long, and the station includes a testing arrangement for determining whether a long space signal is character 32, a valid priority signal or a fault (i.e. an excessively short or long space). Normal messages pass via a one-character shift register before passing to the printer or perforator but this store is disconnected when a priority signal arrives. At the waystation the normal messages come from an automatic transmitter and the priority messages from a separate keyset. At the central station these messages pass to a perforator and a computer, respectively. A teleprinter is provided at the waystation and an automatic transmitter at the central station. Specification 910,471 is referred to.
Patent GB-837104-A (GB)
Title: Heat hardenable synthetic resin compositions
IPC: C09D167/08
Filed: 1956-11-27
Abstract: Synthetic resin compositions comprise (a) 5-50% by weight of the resinous condensation product of an aldehyde and a mixture of mono-, di- or tri-alkenyl substituted phenols having 1 or 2 phenolic hydroxyl groups, said alkenyl substituent having less than 14 carbon atoms; and (b) 50-95% by weight of an oil-modified alkyd resin.  In resin (a) aldehydes specified are formaldehyde, furfural, crotonaldehyde and acetaldehyde, and a long list of alkenyl phenols is given which includes alkenyl, cyclo alkenyl and haloalkenyl phenols, cresols, guiacols, resorcinols and catechols, the preferred embodiment being derived from a mixture of mono-, di- and tri-butenyl phenols prepared as in Specification 788,397; the alkenyl phenols may also contain other ring substituents such as methoxy, halogen or nitro groups.  Resin (a) may be prepared in the presence of acid or basic catalysts (e.g. hexamine, NH3, NaOH, KOH, HCl, CH3COOH) and is then acidified to a pH of about 5.0 (e.g. with HCl, H2SO4, acetic or propionic acids), decanted, washed and dehydrated by either vacuum-stripping, azeotropic distillation with xylene, toluene or butanol, or blowing with an inert gas, e.g. N2 or CO2.  There may be added (i) before the condensation, an alkali metal (e.g. Na) hydrosulphite to reduce any quinones present; or (ii) after the acidification, complexing, sequestering or chelating agents (e.g. ethylene diamine tetra acetic acid) to inactivate any metallic ions present.  The resin may also be modified either during the condensation, but preferably after it and in a neutral or acid medium (e.g. with H2SO4, HCl, phosphoric, acetic, propionic, oxalic or maleic acids), with alcohols such as alkanols of 1-8 C (e.g. butyl and 2-ethyl-hexyl), castor oil, soya alcohols, allyl alcohol, ethylene glycol, butane diol-1,4, and lauryl alcohol.  Resin (b) the alkyd resin is preferably of short or medium oil length and preferably contains 30-50% by weight of phthalic anhydride.  Other acids which may replace part of the phthalic acid are maleic, fumaric, isophthalic and p-tertiary butyl benzoic.  Glycerine and pentaerythritol are the preferred polyhydric alcohols, but part of them may be replaced by trimethylol propane or ethylene glycol. Oils specified include soya, cottonseed, linseed, fish and castor, and the mono- and di-glycerides thereof.  Optional additives include TiO2, pine wood resin or the glycerol ester thereof, epoxy or vinyl resins, xylol, toluene, butanol, methyl ethyl ketone, methyl isobutyl ketone, butyl "Cellosolve," "Cellosolve" acetate, and isophorone. ("Cellosolve" is a Registered Trade Mark.)  Uses.-The compositions may be used to coat metals for food containers or punched caps.
Patent GB-901012-A (GB)
Title: Scraper conveyors
IPC: B65G19/28
Filed: 1958-11-11
Abstract: 901,012. Scraper conveyers. OELLRICH, A., [trading as MASCHINENFABRIK UND EISENGIESSEREI A. BEIEN]. Nov. 11, 1958 (Nov. 27, 1957], No. 36244/58. Class 78 (1). In a double-chain scraper conveyer of the kind in which the scrapers 2 travel in superposed runs within a framework comprising a series of interconnected sections, each section comprises a floor plate 4 welded between projections 3a on upright limbs 3 of a pair of opposed profiled members of L-shaped crosssection, horizontal limbs 3b of which project inwardly to guide the lower runs of the chains 1, abutment members 5 secured externally of the limbs 3 at the opposite ends of the section and provided with apertures 8 for receiving bolts 9 coupling adjacent sections together, and a pair of opposed L-section members having downwardly-extending limbs 6 secured to the outer edges of the members 5 and inwardly-extending limbs 7 for guiding the upper runs of the chains 1. The limbs 7 are provided with apertures 7a for receiving mounting means for spill plates (not shown). Threaded apertures 12 in the members 5 are provided for securing the guiding rail of a winning or other mining machine, or other ancillary device. Alternatively, each member 5 may be provided with a pocket facing away from the adjacent ends of the trough section, the outwardly-facing wall of which is provided with a slot (Fig. 3, not shown). A reinforcing member of U-section (Fig. 4, not shown), is provided on each limb 3 intermediate its ends, and may include an aperture for mounting the guiding rail or other ancillary devices.
Patent GB-428312-A (GB)
Title: Improvements in the ornamentation of leather
IPC: A43B23/24
Filed: 1933-12-28
Abstract: 428,312. Ornamenting leather &c. HALDINSTEIN, G. E., 2, Queen Street, Norwich. Dec. 28, 1933, No. 36466. [Class 93] [See also Groups VIII and XVII] Ornamental markings consisting of lines or fancy configurations are formed on leather or fabric for shoes, bags, or other articles by sewing a leather strip a to the outer surface c of the article and folding the strip over the line of stitching b so as to conceal the stitching, adhesive being applied, if desired, to secure the parts together. To avoid leaving a raw edge, the strip is folded on itself at f at least once.