baber/WOPTO huggingface dataset:
Patent GB-889873-A (GB)
Title: Disk brake
IPC: F16D65/54
Filed: 1959-01-27
Abstract: 889,873. Disc brakes. BENDIX CORPORATION. Jan. 27, 1959 [Jan. 27, 1958], No. 2955/59. Class 103 (1). A disc brake has a wear pad 70 interposed between a rotor 10 and a fixed member and applied against the rotor by a piston and cylinder, the piston 50 having a portion 52 closely fitted within the cylinder to permit tilting of the piston, the pad 70 being guided by, and anchored on, members 36, 80 which serve to secure the cylinders to the fixed member, the pad being permitted to tilt about members 36, 80 to conform with the rotor surface. The fixed. member comprises a limb 22 secured to a non-rotatable part 18, a bridgepiece 23 and a limb 20 consisting of two portions 26, 28. The cylinders 42, 44 extend into a circular recess 24 and a semi-circular recess 30 in limbs 20, 22 respectively. The diagonal dimension d of piston 50 is less than the cylinder diameter, and the portion 52 may be rounded. The pistons 50 are each recessed at 60, formed with strengthening ribs 62 and provided with seals 56, 64. The wear pad 70, preferably of oval shape, Fig. 4, not shown, comprises a friction pad 72 and a backing- plate 74 having extensions 76, Fig. 2, engaged with the ends 80 of bolts 36. On braking, hydraulic pressure moves the pads against the disc, and the abutment between piston 50 and plate 74 and the tiltable piston 50 ensures that the pads can conform fully with the disc, the bolts 36 transmitting the braking torque to the fixed member. Springs 82 held in place by bolts 36 bias the pads to the release position. To replace worn shoes, the springs 82 are removed and the bolts 36 partly withdrawn, enabling the pads to be removed in a circumferential direction, without dismantling the remainder of the brake. One of the ends 80 may engage an open notch in plate 74, so that withdrawal of one bolt 36 suffices to free the pad.
Patent GB-252121-A (GB)
Title: Metal propeller for aircraft and its process of manufacture
IPC: B64C11/20
Filed: 1926-02-02
Abstract: 252,121. Chauviere, L., and Michel, G. May 15, 1925, [Convention date]. Screw propellers are forged or pressed from a suitable billet in such a manner that the metal is forced to flow from the centre to the tips, preferably the billet is initially of greater cross-section, than that of the boss and is of magnesium, magnesium alloy, or other light metal or alloy. Starting from a round billet, the boss is formed first, Fig. 2, the metal being forced in the direction of the arrows f<1>, f<2>. Each blade, Fig. 8, is then formed by a progressive series of swaging or die forging operations whereby the flow is always toward the tip. Alternately, after the boss is formed it may be enclosed in a rigid mould m, Fig. 8, and the forging or pressing of blades effected by forces directed as at F, F<1>, resulting in the flow to the tips in directions f<1>, f<2>. The forging may be effected in one operation provided the dimensions and shape of the billet are suitably chosen.
Patent GB-1186183-A (GB)
Title: Improvements in or relating to Fluid Control Valves.
Inventor: ELMER ARTHUR ERNEST HENRY
IPC: F16K31/68
Filed: 1966-01-24
Abstract: 1,186,183. Valves. DYNAIR Ltd. 24 April, 1967 [24 Jan., 1966], No. 3026/66. Heading F2V. [Also in Division F1] The valve device 10 is adapted to control the supply and venting of operating air pressure to and from a clutch 12 in the drive of a cooling fan 13 for the radiator 14 of a vehicle engine 15. The device comprises a sleeve 33 slidably mounted in a housing having a pressure supply port 30, an outlet port 31 for connection to the clutch, and a vent port 32. A poppet valve 40, 41 slidable in the sleeve between a seat ring 42 and an abutment 43, is effective between the inlet and outlet. A vent valve plug 50 carried by the sleeve 33, is movable by the plunger 26 of a wax type thermal capsule 23, on rising temperature of the cooling water in circuit 16. Initially the plug 50 moves off an abutment 54 against a spring 53 to close the vent passage by a sealing ring 51 and later engages and opens the poppet valve 40. The spring force is insufficient to move the sleeve 33 against the air pressure. On continued movement the sleeve is moved along with the poppet valve by the abutment 43. The device functions as a safety cut-off in the event of loss of pressure at the inlet 30, by allowing the spring 53 to close the sleeve on to the poppet valve 40. The thermal capsule 23 may be replaced by other automatic or remote control devices or by a manual linkage.
Patent GB-227645-A (GB)
Title: Improvements in pile fabrics and process for making the same
IPC: D03D39/00
Filed: 1924-02-05
Abstract: 227,645. White. A. E., (Boyd Co., Inc., J. S.). Feb. 5, 1924. Pile fabrics are produced by weaving pile threads 2, Fig. 2, into warp or weft binder threads 3 of a base fabric 1, portions of the pile threads between the binder threads, which are arranged in staggered relation, being cut and removed to leave areas of pile 8, Fig. 9, and intermediate parts showing the base fabric. Coloured threads and threads of silk and cotton mixtures may be used to produce ornamental effects.
Patent GB-742366-A (GB)
Title: Improvements in and relating to the vibration of liquids
IPC: H02K33/04
Filed: 1953-02-03
Abstract: <PICT:0742366/III/1> <PICT:0742366/III/2> <PICT:0742366/III/3> Apparatus for agitating a liquid in a vessel 2 having four or more sides comprises two or more electromagnetic vibrators 7 which act on different walls of the vessel at points spaced from one another and are arranged so as to be energized in phase with one another. The invention may be applied to washing clothes, emulsifying, cleaning metals and in vibrators used in the manufacture of foodstuffs.  In one example (Fig. 2), the vessel 2 is of square section and made of iron, and four electromagnets 7 are carried by a frame 5 secured to the corners of the vessel.  Resonance may be obtained by varying the liquid level by means of a flexible pipe (Fig. 1, not shown), connected to the bottom of the vessel 2. When resonance is achieved the end of the pipe is fixed at the height of the liquid level in the vessel 2, so that the addition of articles to the liquid merely causes overflow of the liquid without upsetting the tuned conditions. The air gap between the wall of the vessel and the electromagnet may be adjusted by the arrangement shown in Fig. 6 wherein the electromagnets 7 are mounted on vertical supports 5 which are screwed to lugs on the upper and lower edges of the vessel.  A stirrup 20 carrying the electromagnet 7 is mounted on screws 21 whose heads are welded to the support 5, and the stirrup is adjustable in position and held by means of knurled nuts 22 and locking nuts 23.  The vessel 2 may alternatively be of rectangular section.  If the vessel 2 is made of a non-ferromagnetic material, a ferromagnetic member is fixed to the wall of the vessel and disposed in the field of a solenoid through which A.C. is passed (Fig. 3, not shown), Fig. 4 shows a further modification in which a sleeve 18 fixed to the wall of the vessel has wound on it a coil 19 supplied with A.C. and disposed in a magnetic field.  In Fig. 8 (not shown), a double walled rectangular section vessel is provided with circular coaxial depressions on its inner walls.
Patent GB-420634-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J61/36
Filed: 1934-01-30
Abstract: 420,634. Metallic - vapour lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gluhlampen; 11, Ehrenbergstrasse, Berlin) Jan. 30, 1934, No. 3139. Convention date, Feb. 22, 1933. [Class 39 (i)] In a luminous electric discharge tube filled at least in part with metal vapour which is able to attack the envelope, means for protecting a non-resistant part of the envelope comprise insulating tubes closely surrounding the laeding-in wires where they emerge from said part and cemented to a protecting cap covering said part. In the example shown, a stem 4 of lead glass carrying a pinch is sealed through a graded seal 3 to the envelope 1 of resistant glass. Leading-in wires and supports 9 are carried through the pinch in the usual manner, and are surrounded where they meet the pinch by insulating tubes 10. A cap 11 of resistant glass or metal fits over the tubes 10 and rests with its lower end on the protuberance 13 of resistant glass. As the tubes 10 do not make an air-tight joint with the leading-in wires, they are cemented to the pinch at 14 and also to the protective member at 12. The filling may be sodium, magnesium or cadmium with a rare gas for starting.
Patent GB-779292-A (GB)
Title: Improvements in or relating to horological instruments
Inventor: FELL ROBERT ANDREW
IPC: G04B9/00
Filed: 1955-02-02
Abstract: 779,292. Clocks and watches. SMITH & SONS (ENGLAND), Ltd., S. April 30, 1956 [Feb. 2, 1955], No. 3142/55. Class 139. An up-and-down indicator comprises two co-axial discs 1 and 4, Fig. 1, driven through identical gear trains from the barrel 10 and the barrel arbor 15 respectively. The disc 1 has a hole 3 through which differently marked or coloured regions of the disc 4 may be seen. The disc 4 may be provided with numerals which indicate the remaining running-down time of the mainspring. The discs 1 and 4 have co-operating stops 18 and 19 which prevent the disc 4 from overtaking the disc 1 when the mainspring is fully wound and slips in the barrel.
Patent GB-1215821-A (GB)
Title: Improvements in press mechanism for moulding or casting machines
IPC: B22D17/26
Filed: 1968-01-22
Abstract: 1,215,821. Mould closure device. ATELIERS DE CONSTRUCTIONS MECANIQUES ET DE CHAUDRONNERIE CORPET - LOUVET & CIE. 22 Jan., 1968 [24 Jan., 1967], No. 3163/68. Heading B5A. [Also in Division B3] In an injection transfer or compression moulding machine or a pressure die-casting machine (see Division B3), a die plate 14 is moved to a die plate 11 (fixed on the machine frame 10) by at least one hydraulic jack 30 secured to the frame 10 by way of a bearing support 22 adjustably secured by nuts 26 to fixed bearers 15 on which slide the die plate 14 and a crosshead 40 with a toggle mechanism 62 connected between them; when the die parts are closed together by the jack 30, a wedge 88 is lowered (to stop reverse movement of the crosshead and die plate 14) adjacent an inclined' end face 87 of a bar 86 on the crosshead and then the toggle 62 is actuated by an hydraulic control jack 44 (connected to the crosshead by tie bars 42) to lock the die parts 12, 13 together. The locking force is determined by adjusting the length of the jack rod 53, 57 (of a piston 52) by a screw connection in an enlargement 56 of the rod. The plate 14 rests on an adjustable foot 18 on a slideway 20. The bearers 15 may be vertical. The control jack 44 has rollers 48 running on rails 49 extending from the bearing support 22. In the open position shown, the working piston 52 is maintained at the cylinder end by fluid pressure (from an inlet 82) between the piston and an abutment piston 75 through which the rod 53 freely passes and which has a wider end 76 whose face 78 is subject to the same fluid pressure so that the piston 75 is held against a shoulder 80. When the pressure is switched from the inlet 82 to an inlet 81, the piston 52 is moved to abut the small end of the abutment piston 75 and a head 61 on the rod extension 57 is moved away from the crosshead 40 so that outer arms 64, 72 of the toggle linkage are brought nearly to horizontal alignment, Fig. 2 (not shown). The die parts 12, 13 are then brought together by the hydraulic jack(s) 30 and the wedge 88 can be lowered by a jack 90 to prevent return movement of the die plate 14 because the crosshead 40 is moved by the enlargement 56 on the rod 53, 57. Then, when pressure is removed from the piston face 78, the working piston 52 can move further right (by pushing the abutment piston 75) so that the toggle links are actuated further to align the links 64, 72 horizontally, Fig. 3 (not shown), and thus the locking pressure is applied as determined by the adjusted combined length of rods 53 and 57. Moulding (or casting) then takes place. The weaker force of the jack(s) 30 is sufficient during cooling. The toggle linkage is then opened, the wedge 88 removed and the die plate 14 moved back by the jack(s) 30. An ejector 100 carried by the plate 14 has adjustable rods. (not shown) for abutting the bearing support 22 at the reversing movement to eject the moulding (or casting). The locking pressure may be accurately determined by a comparator indicating the tensile force in the bearers 15.
Patent GB-1072604-A (GB)
Title: Ethylene copolymers and a process for their manufacture
IPC: C08F10/00
Filed: 1966-01-24
Abstract: Ethylene and vinyl sulphonamide are copolymerized in the presence of a free-radical-forming compound as catalyst at a pressure above 10 atmospheres.  The polymerization is preferably carried out at a temperature of 20 DEG  to 250 DEG  C. in the presence of an inert solvent. The usual free-radical catalyst are used.
Patent GB-671722-A (GB)
Title: Organo-silicon co-polymers and their manufacture
IPC: C08G77/00
Filed: 1950-02-08
Abstract: An organo-siloxane copolymer contains Si atoms linked in pairs by oxygen atoms and by methylene radicals so as to contain \sYSi-CH2Si\sZ structures and be free from \sYSi.CH2.Si.CH2.Si\sZ structures, all other bonds of the Si atoms being satisfied by methyl radicals, the average number of which per Si atom is between 1.98 and 2.1 and the average number of (CH3)2SiO- units per \sYSi-CH2-Si\sZ unit being from 0.5 to 50.  The copolymers may be made by copolymerizing by means of fuming sulphuric acid (a) siloxanes containing (CH3)2SiO- and -(CH3)2Si.CH2. Si(CH3)2O- units and possibly (CH3)3SiO0,5 or (CH3)SiO1,5 units, or (b) a mixture of cyclicdimethylpolysiloxane and [-Si(CH3)2.CH.Si (CH3)2O]2.  A mixture of (CH3)2SiCl2 and Cl.Si(CH3)2.CH2.Si(CH3)2Cl may be hydrolysed and the resulting products then copolymerized. (CH3)SiCl3 may be included in the mixture to be hydrolysed.  In examples (1 to 4), a mixture of [(CH3)2SiO]4, [(CH3)2Si.CH2Si(CH3)2 O]2 and [(CH3)3Si]2O are stirred with 30 per cent fuming H2SO4, water added and the mixture allowed to stand overnight.  After dilution with benzene, the mixture is washed with water, dried over Na2CO3 and benzene removed by heating to 80 DEG  C. and bubbling nitrogen therethrough; example (5) is similar except that [(CH3)3Si]2O is omitted. Th liquid products may be used as lubricants, and as foam inhibitors, and the gels may be used for the production of silicone rubber.  Specification 579,408 is referred to.ALSO:The compound Cl(CH3)2Si.CH2.Si(CH3)2Cl may be prepared by reacting Cl2CH3Si.CH2 SiCl3 with a methyl Grignard reagent in amount sufficient to replace three of the chlorine atoms with methyl radicals.ALSO:Liquid organo-siloxane copolymers containing Si atoms linked in pairs by oxygen atoms and by methylene radicals so at to contain \yE Si-CH2-Si \yD structures and be free from \yE Si-CH2-Si-CH2-SI \yD structures, all other bonds of the Si atoms being satisfied by methyl radicals, the average number of which per Si atom is from 2.0 to 2.1 and in which the average number of (CH3)2SiO units per \yE Si-CH2-Si \yD unit is from 0.5 to 50 (see Group IV(a)) are useful in preventing the foaming of hydrocarbons, such as petroleum lubricating oils, and of mixtures of organic materials and water as in the production of yeast.
Patent GB-717604-A (GB)
Title: Apparatus for forming grooves in brickwork and like hard material adapted also for other purposes
Inventor: STOERZER JOSEPH
IPC: B28D1/18
Filed: 1952-02-08
Abstract: 717,604. Groove cutters. WERKZEUGBAU GES. Feb. 8, 1952, No. 3414/52. Class 124 [Also in Group XXII] Apparatus for cutting grooves in brickwork and like hard material comprises a motor, gear, and cutter, the axes of which are parallel, mounted as a unit in a 'frame provided with means for moving it along a surface and in which the unit is rotatable, the cutter axis being disposed eccentrically of the central axis of the unit. As shown, a milling cutter 24 is mounted on a hollow shaft 17 supported in a bearing 131 carrying an adjustable hood 23; the shaft being arranged eccentrically of the centre line of a motor 14 and a gearing 16 enclosed in a casing 13. Rings 31 rotatably secured in annular grooves in the body are maintained in spaced relation by stays 32 to form a frame. Arms 29 carrying grooved wheels 12' are pivoted at 30 to the rings 31 and may be locked in either of two positions, i.e. with axes of wheels at right angles to or parallel to the central axis of the apparatus. The depth of cut may be adjusted by rotation of the unit in the frame. The tool may be moved by hand or may run on parallel rails mounted on stayed supports spaced from a wall and which may also carry an adjustable platform, Fig. 3 (not shown). Air from a ventilating fan 15 may escape through a bore 171 in the shaft 17 into a hood 23 from whence it escapes down the wall being grooved, taking the dust with it.
Patent GB-1213489-A (GB)
Title: Apparatus for feeding blanks or sheets
IPC: B31D1/00
Filed: 1968-01-23
Abstract: 1,213,489. Feeding sheets. WINKLER & DUNNEBIER MASCHINENFABRIK UND EISENGIESSEREI K.G. 23 Jan., 1968 [25 Jan., 1967], No. 3447/68. Heading B8R. Sheets are separated from a number of stacks 3, 3<SP>1</SP> by feeding devices comprising movable suction members 5,5<SP>1</SP> and rotary conveyer means 8, 8<SP>1</SP>, 11, 11<SP>1</SP>, the suction members being arranged to withdraw bottom sheets from each of the stacks in succession and the conveyer means being arranged to accelerate the sheets and feed them at regular intervals along a common path. Pipe supports.-Tongue members 7, 7<SP>1</SP> move in synchronism with the suction members to support the stacks. Separators.-Suction members 5, 5<SP>1</SP> swing on hollow shafts 4, 4<SP>1</SP> and transfer sheets to rotating segments 8, 8<SP>1</SP>. Sheet carriers and forwarders.-Sheets are engaged by the cut-outs of segments 8, 8<SP>1</SP> held thereto by suction and then transferred to suction cylinders 11, 11<SP>1</SP> co-operating with nip rollers 14, 14<SP>1</SP>. Cylinders 11 travel at twice the peripheral speed of segments 8, 8<SP>1</SP> and serve to accelerate the sheets from each of the two stacks and transfer them in succession to a common suction cylinder 16. Cylinder 16 may be a printing cylinder. In an alternative embodiment (Fig. 2, not shown) sheets from both stacks are fed to a cylinder similar to cylinder 11, sheets from one stack reaching the cylinder via a segment similar to segement 8, sheets from the other stack reaching the cylinder via a segment similar to segment 8<SP>1</SP> and a further suction cylinder rotating at twice the periperal speed of the segment 8<SP>1</SP>.
Patent GB-284719-A (GB)
Title: Improvements relating to unhairing and/or softening animal skins
IPC: C14C1/06
Filed: 1928-02-03
Abstract: 284,719. Soc. Progil. Feb. 4, 1927. [Convention date]. Grant of Patent refused. Treatment preliminary to tanning.-Skins are unhaired and softened prior to tanning by treatment with isolated proteolytic emzymes of bacterial origin. The liquids resulting from the development of bacteria such as B. subtilis, B. mesentericus, B. liquefaciens are suitable enzymecontaining materials. Cultures of such bacteria prepared in known manner are developed in peptonized gelatine or meat extract and the bacteria removed from the liquid by centrifuging. In applying the liquid for the softening of goat skins, the skins are placed in a vat with a solution containing 180 grams of sal ammoniac in 400 litres of water and liquid prepared as above is added. In the unhairing of sheepskins, the skins softened by immersion in water to which a bisulphite may be added are immersed in an alkaline bath containing 4 parts per thousand of sodium hydroxide. After washing the skins are then treated in a bath containing 2 parts of sodium carbonate and 10 parts of the prepared liquid per thousand of the bath. The treatment with the enzyme is conducted at 37 C. in each case. Reference has been directed by the Comptroller to Specifications 12549/98, 169,730, 179,135, and 199,937.
Patent GB-948094-A (GB)
Title: Improvements in or relating to pre-stressed structures
Inventor: KINGSBURY ROBERT FREDERICK THO
IPC: E04C5/12
Filed: 1961-11-30
Abstract: 948,094. Prestressed structures. STRESSED CONCRETE DESIGN Ltd. Nov. 21, 1961 [Jan. 30, 1961], No. 3470/61. Heading E1V. A concrete structure is prestressed by parallel layers of stranded cables 6, individually posttensioned by a jack, and held in an anchorage block 4 by collets 5. The cables are held in position by a spacer grille 7, and the duct 2 may be grouted up through a grout hole 8, which may extend through the concrete end block instead, if the anchorage block is formed of several blocks with no grout holes (Fig. 2, not shown).
Patent GB-755607-A (GB)
Title: Manufacture of penicillin salts of n-phenyl-urethanes
IPC: C07D499/24
Filed: 1953-02-06
Abstract: Sparingly soluble penicillin salts for pharmaceutical use have the general formula <FORM:0755607/IV(a)/1> in which X represents a bivalent ethylene radical; R represents a phenyl group which may have an alkoxy or hydroxyl substituent; R2 represents an acylic or cyclic group of 1 to 6 carbon atoms; R1 represents hydrogen or an alkyl or a benzyl group; or <FORM:0755607/IV(a)/2> represent the residue of a heterocyclic ring system; and Pc represents penicillin.  The salts are prepared by reacting a salt of penicillin with a salt of the urethane in the presence of water, or by reacting penicillin acid with the urethane base in the presence of an organic solvent, e.g. ethyl acetate.  The preparation of the following compounds are described (a) n-propylaminoethyl-N-(phenyl) - urethane - penicillin; (b) n - butyl-aminoethyl - N - phenyl - urethane penicillin; (c) cyclohexylaminoethyl - N - phenyl - urethane - penicillin; (d) morpholino - ethyl - N - phenyl - urethane - penicillin; (e) n - butyl-amino - ethyl - N - (4 - ethoxy - phenyl) urethane - penicillin; (b) (b  - ethyl - butyl)-aminoethyl - N - phenyl - urethane penicillin; (g) diethylaminoethyl - N - (4 - hydroxyphenyl)-urethane - penicillin; and (h) pyrrolidino-ethyl - N - (4 - hydroxypehnyl) - urethane - penicillin.  The N-phenyl urethanes are obtained by reacting the appropriate alcohol, e.g. morpholino-ethanol, N-propyl-N-benzyl-amino-ethanol and N - butyl - N - benzyl - aminoethanol with phenyl isocyanate.  In the case of the above benzyl urethanes, the benzyl group can be split off by catalytic hydrogenation to give propylaminoethyl-N-phenyl urethane or butyl amino ethyl-N-phenyl urethane.ALSO:Penicillin salts suitable for injection as depot penicillins or for oral administration as tablets, have the general formula <FORM:0755607/VI/1> wherein X represents a bivalent ethylene radical; R represents a phenyl group which may have an alkoxy or hydroxyl substituent; R2 represents an acylic or cyclic group of 1 to 6 carbon atoms; R1 represents hydrogen or an alkyl or benzyl group; or <FORM:0755607/VI/2> N represents the residue of a heterocyclic ring system; and Pc represents penicillin (see Group IV(b)) Specified are (a) n-propyl-aminoethyl-N-phenyl urethane penicillin (b) n-butylaminoethyl-N-phenyl urethane penicillin (c) cyclohexylamino-ethyl-N-phenyl urethane penicillin (d) morpholino-ethyl-N-phenyl-urethane penicillin (e) n-butylamino-ethyl-N-(4-ethoxy-phenyl) urethane penicillin (f) (beta ethyl butyl)-amino-ethyl-N-phenyl urethane penicillin (g) diethylamino-ethyl-N-(4-hydroxyphenyl)-urethane penicillin, and (h) pyrrolidinoethyl-N-(4-hydroxyphenyl) urethane penicillin.