baber/WOPTO huggingface dataset:
Patent GB-627816-A (GB)
Title: Improvements relating to the preparation of ª‰-phthalimido propane derivatives and ª‰-alanine
IPC: C07D209/48
Filed: 1947-07-16
Abstract: b -Phthalimido propane derivatives of the formula <FORM:0627816/IV (b)/1> where Y is -CN, COOH or COOR, R being an alkyl group whose acrylic acid ester is volatile at below 200 DEG  C. at atmospheric pressure, are prepared by fusing together phthalic acid or phthalic anhydride and a secondary amine having the formula <FORM:0627816/IV (b)/2> preferably at a temperature of 180 DEG  to 200 DEG  C.  Acid salts of b -alanine are prepared by refluxing the b -phthalimido propane derivatives with a mineral acid such as sulphuric acid.  When sulphuric acid is used as the mineral acid, b -alanine may be obtained from the resulting sulphuric acid salt by neutralizing with barium hydroxide; if hydrochloric acid is used the free base may be obtained by treatment with silver oxide, an ion-exchanger or lithium hydroxide.  In examples: (1) b  : b 1-imino-bis-propionic acid is fused with phthalic anhydride to give b -phthalimido propionic acid, which is refluxed with sulphuric acid and treated with barium hydroxide to give b -alanine; (2) b  : b 1-dicyano diethylamine is fused with phthalic anhydride to give b -phthalimido propionitrile, which is hydrolysed and b -alanine is separated as in (1); (3) b  : b 1-dicarbethoxy-diethylamine is fused with phthalic anhydride to give the ethyl ester of b -phthalimido propionic acid from which b -alanine is obtained as in (1); (4) b -phthalimido propionic acid is prepared as in (1); (5) the di-isopropyl ester of b  : b 1-imino-bis-propionic acid is fused with phthalic anhydride to give isopropyl b -phthalimido propionate; and (6) b  : b 1-dicyano diethylamine is fused with phthalic acid to give b -phthalimido propionitrile, which is converted to b -alanine as in (2).  Imino - di - 3 - propionic acid (b  : b 1 - imino - bis-propionic acid) is prepared by hydrolysis of imino-di-3-propionitrile.  The ethyl ester is prepared by treating the acid with absolute ethanol containing dry hydrogen chloride.
Patent GB-477905-A (GB)
Title: Improvements in means for conveying metallic articles through apparatus for electro-plating
IPC: B65G49/04
Filed: 1936-07-09
Abstract: In apparatus for electroplating, pickling, cleaning, dip - painting, or enamelling metal articles of the kind in which the articles are suspended from bars resting on conveyer chains disposed above a sequence of tanks, the articles are transferred from one tank to the next by hoisting mechanism mounted on a travelling trolley.  The transferring mechanism comprises a bar h<2>, Fig. 2, movable in slotted members h<1> depending from a wheeled trolley h and suspended by straps h<3> from winding drums.  The shafts h<4> of the winding drums of the series of trollies are connected by a shaft i which is driven by a motor i<1>, Fig. 8, and the trollies are moved longitudinally by ropes j<2> connected to winding mechanism at each end of the series.  The bar h<2> may engage the carrier bars f by means of hooks or by means of electromagnets h<6>.  In the latter case the arrangement is such that when a bar f is deposited upon the conveyer e after transference, a circuit is broken and the bar released.  The carrier bars f may be of H-section and may have copper shoes for slidably effecting electrical contact. Rubber sleeves f<2> of hollow H-section are slipped on to the ends of the <PICT:0477905/III/1> <PICT:0477905/III/2> <PICT:0477905/III/3> bars f and are kept in plae by square section metal sleeves f<3> closed in by pressure.  If the transfer mechanism fails to remove a bar, the bar is slid by the conveyer chains on to curved runners near the end of the tank which elevate it and isolate it from the chain ready for an attendant to correct the apparatus.
Patent GB-829733-A (GB)
Title: Tantalum alloy
IPC: C22C27/02
Filed: 1958-06-13
Abstract: A tantalum alloy of good corrosion resistance and mechanical strength at high temperatures has a composition within the following range in per cent by weight Cr 5-20, W 2-25, Ta the balance.  The alloy may also contain one or more of the following impurities in the stated proportions C up to 0.5, O up to 0.8, N up to 0.2, Fe up to 5.0.  The alloy may be used in the form of parts of gas turbines and internal combustion engines, heat exchangers and as linings for retorts and other containers in the chemical and metallurgical industries.
Patent GB-153380-A (GB)
Title: Improvements in pumps for supplying fuel to engines of the "diesel" and "semi-diesel" type
IPC: F02D1/00
Filed: 1919-08-01
Abstract: 153,380. Reed, F. J. Aug. 1, 1910. Eccentric-rods.-The eccentric-rod actuating the fuel pump of a Diesel &c. engine is made in two parts q, r coupled by links s pivoted at one end to plates r. When these plates are in the positions shown in Fig. 1, the part q is not moved by the part r and the pump is not operated, but when the plates v are moved into the position shown in Figs. 2 and 3 by a locking-device x, the part q moves with the part r. The locking-device may be controlled by the starting and reversing lever.
Patent GB-572181-A (GB)
Title: Decorating apparatus for coated confections and the like
IPC: A23G3/28
Filed: 1943-11-16
Abstract: 572,181. Decorating chocolates &c. LATINI, L. Nov. 16, 1943, No. 19134. [Class 28 (i)] Chocolates &c. 101 are decorated on top by contact with a perforated or slit or uncut flexible band loop 95, for example, of oilcloth depending from rods 49 and moved up and down by oppositely rotating cranks 51. The chocolates may come from an enrober and may be passed underneath the band by an adjustable conveyer 102. The extent of yielding the flexible band may be varied by adjusting the flexible positions of the cross bars 43-55 by screw rods 68, the ends of the cross bars being adjustable in slots 56 to vary type of decoration by varying the impact of the band against the chocolates. A steam manifold 103 keeps the band hot enough to drop off adhering chocolate. An endless chain 93 couples both end adjustments which the attendant can effect by turning one or other of the knobs 94. The cranks 47, 48 are operated from an electric motor and a gear box 24' by means of pinion 27, gear 28, and links 37 and 38, Fig. 4.
Patent GB-520823-A (GB)
Title: Improvements in or relating to drop-side cots or bedsteads
IPC: A47D7/02
Filed: 1939-06-30
Abstract: 520,823. Drop-side cots. RAWLINGS, J. J. June 30, 1939, No. 19141. [Class 52 (ii)] To prevent the occupant from climbing out, the drop-sides 1 of a cot are provided with upper hinged extensions 2 normally inclined inwards. The top rail 6 of the drop-side is supported in brackets 8 on the pillars 9, and the extension 2 is carried by arms 10 pivoted to the end uprights of the drop-side and locked in the inclined position by gravity catches 14 pivoted to the rail 6 engaging over projections 11 on the arms. The ends of the cot are made higher than usual or are also provided with inwardly inclined extensions. In modifications the bottom rail 5 of the extension is pivoted on or adjacent to the top rail 6 of the drop-side and locked in position by a lug engaging one side of the bracket 8 or a catch on the rail 6. Fig. 7 shows a further modification in which the extension 2 is pivoted to the top rail 6 by a sleeve 33 formed with a lug 34 adapted to engage the front wall 18 of the bracket 8. Teeth 35 are formed at the lower end of the lug 34 and when the drop-side is raised, with the extension in the lowered position, and the lug 34 passed into the bracket the extension may be rotated upwardly until the teeth 35 engage teeth 36 provided on the pillar 9. Further rotation causes the drop-side to rise partially out of the recess and when the teeth 35 have passed out of engagement with the teeth 36 the drop-side falls into the base of 'the recess the extension having been rotated to its raised position.
Patent GB-1253476-A (GB)
Title: Drinking valve for poultry and livestock
Inventor: THOMPSON EARL CLAYTON
IPC: A01K39/02
Filed: 1970-04-22
Abstract: 1,253,476. Animal drinking appliance. E. C. THOMPSON. 22 April, 1970 [29 April, 1969], No. 19184/70. Heading AIM. [Also in Division F2] Drinking valve for poultry or other animals, comprises a body consisting of two axially opposed parts 15, 17 providing an axial flow passage through the body. A chamber in one of the parts houses a valve member 26 cooperating with a seat 27 and having a stem 24 extending out of the valve for actuation by the animal. The body part 17 has a portion receivable in a port 19 of a conduit to which the valve is to be connected. A clamp 28 cooperating with a flange 20 secures the valve to the conduit. As shown, the resilient clamp 28 has hooked ends engaged in a recess 21 in the flange. The valve may be fixed to a drinking bowl 11 and may have an actuating disc 25 on the stem. The body is sealed to the conduit by a gasket 18. In modifications, Figs. 3 to 12 (not shown) (a) two grooves (21', Fig. 3) at different levels are provided so the clamp may encircle conduits of different diameters, (b) the drinking bowl (30, Figs. 4 and 5) is connected by a side connection to a horizontally disposed valve, (c) the valve is arranged in a depending position without the bowl. The recesses are divided into angularly spaced compartments so that by twisting the legs of the clamp and inserting the hooked ends at different angular positions the clamp may be adjusted, and (d) the valves at spaced positions along a conduit are each clamped in depending position to an inverted cup-shaped member (52, Figs. 9 to 12) on a T-piece (55),
Patent GB-229580-A (GB)
Title: Improvements in reinforced concrete railway cross ties or sleepers
IPC: E01B3/36
Filed: 1924-08-13
Abstract: 229,580. King, Van R. C. Aug. 13, 1924. Sleepers, composite; sleepers, securing rails to; tie-bars.-A reinforced-concrete sleeper comprises a pair of heads A connected by a rod 18, each head having a pair of reinforcing rods 1 connected by vertical anchor rods 3 to a rail-bearing structure, and a pair of bowed rods 12, 13 which, together with one end of the rod 18, are screwed into sockets in a holder plate 16. The ends of the rod 18 are reversely threaded to facilitate adjustment of the heads A relatively to each other. The rail-bearing structure preferably consists of two bent plates 6 with rounded corners 6<a> and side flanges 9, the plates being formed with threaded sockets 7 to receive the ends of the anchor rods 3 and with sockets to receive bolts which act in conjunction with clamps to secure the rail. A single plate may be substituted for the plates 6, or, in a further modification, two spaced plates may be employed each extending transversely across the head. The upper surface of either or both heads A may be horizontal or slightly inclined. When either head is inclined the thread socket in the holder plate 16 for the end of the connecting rod 18 has its axis correspondingly inclined. The rail clamps may comprise each a flat portion 20 apertured to receive a bolt 26 passing through the plate 6, and screwing into a nut 33 embedded in the concrete of the head A, the clamp being formed with a shoulder 23 for engagement with the rail flange. As the bolt is screwed down the shoulder 23 becomes deformed. A lock plate 27 may be provided, with its ends adapted to be bent, as shown, to prevent the bolt from unscrewing.
Patent GB-1509248-A (GB)
Title: Release agent application system for a heated fuser roll
IPC: G03G15/20
Filed: 1975-05-08
Abstract: 1509248 Fixing images XEROX CORP 8 May 1975 [28 May 1974] 19404/75 Heading B6C The subject-matter is contained in Specification 1,509,247 but the claims are directed to a wick having a support, and comprising a plurality of portions with concave surfaces, which can be individually moved to contact different parts of the wick with the fuser roll to apply release material thereto.
Patent GB-663758-A (GB)
Title: Improved process for the production of a substitute for leather
IPC: C08L89/06
Filed: 1948-07-21
Abstract: 663,758. Fabrics composed of agglutinated fibres ; coated fabrics. ROYKO, S. S. June 22 1949 [July 21, 1948], No. 19511/48. Class 140' A leather substitute is made by beating washed chrome leather cuttings, other than pig leather cuttings, to produce a smooth pulp containing 45 grammes of dry fibres per litre, greasing the pulp, rendering it alkaline, adding blood and natural or synthetic rubber latex and a vulcanizing accelerator, then sodium sulphide, sulphur, colophony, a dye, ammonium sulphate, formalin, sulphuric acid and ammonia, pressing the material into a sheet, drying and vulcanizing the latter, and coating its surface with a casein or nitro-cellulose dressing, which may be coloured.
Patent GB-281359-A (GB)
Title: Improvements in drafting rollers for fibrous materials
IPC: D01H5/22
Filed: 1926-08-06
Abstract: 281,359. Ashton, F. Aug. 6, 1926. Rollers and roller heads. - A roller head for fibrous materials comprises a large front bottom roller A, an adjustable slide E carrying one or two smaller rollers B, C, and a cap bar G and extension H carrying the top rollers, the roller A being engaged by three or more rollers f, g, h, and a weighted delivery roller i. The roller f is supported so that it is allowed free upward movement. The lower rollers are case harded and fluted, and the top rollers are covered or uncovered. The back lower roller C may be dispensed with, the top back roller d then replacing the roller e and the break draft, normally effected by the rollers B, e, being effected by the roller f.
Patent GB-216734-A (GB)
Title: Improvements in rubber tyres and wheel rims for vehicles
IPC: B60C7/12
Filed: 1923-07-31
Abstract: 216,734. Casteran, J. G. July 31, 1923. Non-metallic elastic bodies and cores; tyre attachments to rims.- A tyre a of the type having radial openings b forming air cells is combined with a channel rim e which is split so that the rim may be contracted by overlapping the ends g to facilitate putting the tyre in place. The rim is then expanded till the ends abut, and may be secured on the wheel in known way. The inner ends of the cells b may besealed by contact with the rim, or by a strip of rubber or by plugs, not shown.
Patent GB-835745-A (GB)
Title: Improvements in needled sutures
Inventor: FORBES DONALD HAYWORTH STACY
IPC: A61B17/06
Filed: 1956-06-25
Abstract: 835,745. Testing adhesive strength. ETHICON Inc. April 30, 1957 [June 25, 1956], No. 19670/56. Class 106 (2). [Also in Group VII] In testing the strength of adhesion between a surgical needle 38 and a suture 37 attached thereto by heat-curable thermosetting adhesive such as epoxy resin, the needle is held in a vice 39 secured to a pivoted block 33 carrying a graduated arm 34 on which is slidable a weight 36. The suture is pulled until arm 34 rises from a block 35, weight 36 being successively moved outwardly until the suture is pulled away from the needle.
Patent GB-1321743-A (GB)
Title: Printing masks
IPC: H05K3/12
Filed: 1971-06-09
Abstract: 1321743 Cutting and perforating plastics material E I DU PONT DE NEMOURS & CO 9 June 1971 [10 June 1970] 19768/71 Heading B5A [Also in Divisions B3 and B6] A stencil mask for printing an ink pattern on a printed circuit board is made by impinging a laminated mask blank 14 with an electron or laser beam 50 which is controlled so that material is removed in predetermined regions 20 from a first layer 26 but not from a less readily volatilizable second layer 28 other than at predetermined sites 22. The first layer 26 may be of Zn, Cd, In, Sn, Bi, Pb or plastics. The second layer 28 may be of Ni, Ni alloy, Cu, Cu alloy, Fe, Fe alloy, Cr, Mo or W. The formation of grooves 20, in the first layer 26 and apertures 22 in the second layer 28 is controlled by a computer which controls the focus, energy, current and position of the beam and the position of a workpiece table (Fig. 9, not shown). The apertures 22 may be formed at the same time as the grooves 20 or alternatively during a second pass of the beam 50 after all the grooves 20 have been formed. In an example, grooves 20  having a width of 2 mils and with their centres spaced apart by 4 mils are formed in a cadmium layer 26 electroplated on a nickel layer 28. Apertures 22 spaced 3 mils apart are formed in the nickel layer 28.
Patent GB-590073-A (GB)
Title: Improvements in and relating to moulding strips and like elongated members intended to be held in operative position by means of clips
IPC: E04F19/06
Filed: 1944-10-13
Abstract: 590,073. Mouldings. MURRAY, H. H. Oct. 13, 1944, No. 19772. [Class 20 (iv)] [Also in Group XXXVI] An elongated structural member 3, e.g., for sealing the joints between wall panels &c. is formed of friable plastic or brittle material and has a metal reinforcing strip 5 throughout its length with exposed and rolled, beaded or bent edges 5<1>, 5<2> to engage with tongues 4<2>, 4<3> of securing clips 4 such as described in Specification 590,074 provided on the wall at points round the panel edges which are held by the strips 4<4>, 4<5> of the clips. The metal strip may be secured to the moulding by bent tongues 6 or a keying portion embedded in the material, or the shape of the strip may be such as to retain within a recess in the moulding. Or two or more grooves may each accommodate a metal strip, which in another form may provide two re-entrant grooves co-operating with pairs of spring clips. The moulding which may be formed of asbestos, artificial wood or marble, moulded or spun glass, laminated paper or fabric bonded with synthetic resin or other adhesive or cellulose or other plastic material, may be applied to furniture or serve as picture railing or cover for electric wiring.
Patent GB-1449083-A (GB)
Title: Switching device having contacts
IPC: H01H1/02
Filed: 1974-05-06
Abstract: 1449083 Active esters of amino acids SUMITOMO CHEMICAL CO Ltd 12 Dec 1973 [13 Dec 1972] 57669/73 Heading C2C Active esters of N-protected amino acids are prepared by reacting an N-protected amino acid of the formula where R<SP>1</SP> is a divalent straight- or branchedchain aliphatic or cycloaliphatic hydrocarbyl group or a substituted or unsubstituted aromatic hydrocarbyl group, or a group comprising two or more such aliphatic, cycloaliphatic or aromatic groups bonded together through -CONH- linkages and XYN is a protected amino group, with a compound of the formula where R<SP>2</SP> is an aryl group, the reaction being carried out in the presence of a tertiary amine and a phosphorous acid ester of the formula where R<SP>3</SP> is a hydrogen atom or a substituted or unsubstituted alkyl, aralkyl or aryl group and R<SP>4</SP> and R<SP>5</SP>, which may be the same or different, are substituted or unsubstituted alkyl, aralkyl or aryl.
Patent GB-276817-A (GB)
Title: Improvements in or relating to pumps for internal combustion engines and other purposes
IPC: F04B1/14
Filed: 1926-08-12
Abstract: 276,817. Pitt, A. G., Stevenson, A. C., and Crozier, W. H. Aug. 12, 1926. Cam-actuated pumps; stroke, varying; multiple-acting piston pumps; regulating delivery by opening suction valves; valve-gear.-A pump for internal-combustion engines comprises a number of cylinders 3 arranged in a circular series round a rotary shaft 4, the plungers 2 being actuated by a non-rotating disc 19 which is rocked on a spherical bearing 20 by a rotating inclined disc 22 carried by the shaft. The disc 22 is connected by trunnions 27 to a ring 28 provided with inclined slots 34 engaged by square blocks 33 on a pin 32 carried by a sleeve 31 slidably mounted on the shaft 4. The sleeve is connected to a shaft 37 screw-threaded into the cover of the casing and provided with a hand-wheel &c. 36 by turning which the shaft and sleeve are adjusted vertically, thereby moving the blocks 33 in the slots 34 and adjusting an inclination of the disc 22 to vary the length of the plunger strokes. The suction valves 5 are actuated by a non-rotary disc 10 whch is rocked on its spherical bearing 13 by an inclined rotary disc 18 carried by the shaft 4. Adjustable wedges 42 may be arranged between the valve stems and the disc 10 to vary the period of opening of the valves and thereby the delivery of the pump. The delivery valves 6 are arranged at the sides of the cylinders. The liquid is fed into the casing through a connection 50.
Patent GB-1093483-A (GB)
Title: Improvements in small delivery flexible tube pumps for liquid
Inventor: MARTIN ROBERT
IPC: F04B43/12
Filed: 1963-05-20
Abstract: 1,093,483. Flexible tube pumps. CHLOROMET Ltd. May 20, 1964 [May 20, 1963], No.19952/63. Heading F1F. A flexible tube pump for use in chlorinating water in swimming pools, comprises a flexible tubing 1, Fig. 1, within a cylindrical pressure plate 2 and a roller 4 eccentrically mounted on a shaft 6 which is intermittently rotated from a main shaft 13 driven by an electric motor through a pawl 14 and ratchet wheel 15. The shaft 13 carries a cylindrical cam 21 which is held against rotation by a rack and pinion 23, 24. The cam 21 formed with a helical face 22 engages a plate 17 fixed to the shaft 13 so that on rotation of the shaft a roller 20 carried on a spindle 18 on which the pawl 14 is pivotally mounted is intermittently rotated with consequential intermittent rotation of the ratchet wheel 15 and shaft 6. To prevent reverse rotation of the shaft 6 by, e.g. pump back pressure, a roller (29), Fig. 4 (not shown) is jammed between the bottom of a recess (28) and the shaft 6 in one direction of rotation to prevent the shaft rotating but is free in the opposite direction of rotation. An adjustable stop 26 limits axial movement of the cam 21 and determines what percentage of each revolution of the shaft 13, the shaft 6 rotates and hence the output of the pump.
Patent GB-404351-A (GB)
Title: Improvements in or relating to electric glow discharge lamps
IPC: H01J17/00
Filed: 1932-07-14
Abstract: 404,351. Discharge lamps. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and HERRIOTT, E. G., Rose Dene, Private Road, Galleywood, Chelmsford. July 14, 1932, No. 19970. [Class 39 (i).] In glow-discharge lamps for television &c., the cathode 3 has an axial bore and its outer wall is embraced by a sleeve-like jacket 4 through which cooling liquid is circulated by supply pipes sealed through the sides of the bulb 1. Mica sleeving is preferably interposed between the cathode 3 and the glass jacket 4. The cathode lead 7 from the foot 2 is covered with glass 8 and a glass bead 9 supports a disc 10 having a square viewing aperture 11 in line with the cathode bore. The anode 12 is supported behind the cathode as shown. In a modification, the disc 10 is omitted and the anode 12 has a central viewing aperture.
Patent GB-261074-A (GB)
Title: Improvements in electric cables
IPC: H01B7/28
Filed: 1925-08-10
Abstract: 261,074. Callender's Cable & Construction Co., Ltd., and Bryce, S. J. Aug. 10, 1925. Drawings to Specification. Armouring cables.-Insulated and sheathed cables are coated with metal such as copper, silver &c. chemically or electrolytically, and the surface produced is then lacquered, with or without previous "oxidizing" treatment as, e.g. with a soluble sulphide, to protect it from atmospheric influence. The surface of the metal coating may be buffed or polished and this treatment continued to remove the sulphide coating in parts previous to lacquering.