baber/WOPTO huggingface dataset:
Patent GB-559404-A (GB)
Title: Improvements in tool holding means for drop stamps and other metal working machines
IPC: B23Q3/06
Filed: 1942-11-09
Abstract: 559,404. Bolts and nuts. BROCKHOUSE, & CO., Ltd., J., and PARKES, A. Nov. 9, 1942, No. 15790. [Class 89 (i)] [Also in Group XXII] Relates to screw holding means for the dies of drop forging and other metal making machines and consists in a split nut construction that facilitates removal of the screws should they become jammed with scale or upset by contact with the dieblock. The die 12 is held by, say, four screws 11 in lugs 10. The nuts 15 are in two or more parts dowelled at 18 and held together by a ring 20 and screws 21. The flange 16 is eccentric to the body of the nut to prevent rotation in the lug The screw extends sufficiently beyond the lug in the direction of the head 13 to permit the nut to be driven out of the housing by blows on the head so that after removal of the ring 21 the nut sections fall apart permitting the screw to be withdrawn freely through the bore in the lugs.
Patent GB-990656-A (GB)
Title: Compounds of the androstane series
IPC: G01R27/18
Filed: 1963-04-22
Abstract: The invention comprises compounds of formula <FORM:0990656/C2/1> wherein Z is a methylene or ethylene radical-X is an a -alkyl-b -hydroxymethylene, a -alkyl-b -alkanoyloxymethylene group, or, when Z is a methylene radical, a carbonyl, b -hydroxymethylene or b -alkanoyloxymethylene radical, in which the alkyl and alkanoyl portions contain less than 7 carbon atoms, and the dotted line indicates an optional double bond, and their preparation by (a) contacting a compound of formula <FORM:0990656/C2/2> wherein R is a hydrogen atom or an alkanoyl radical having less than 7 carbon atoms, R1 is a hydrogen atom or an alkyl radical having less than 7 carbon atoms, Y is a methylene group or a direct link and M is a hydrogen atom or an ammonium or alkali metal cation, with ammonia and hydrogen, preferably in the presence of a hydrogenation catalyst at elevated temperatures; where Y is a methylene group a mixture of the lactam and the corresponding amino acid is formed, which latter is cyclised by refluxing in an inert organic solvent; (b) reaction of the starting material defined above with hydroxylamine, followed by reduction and cyclisation of the oxime obtained; (c) reaction of a compound of formula <FORM:0990656/C2/3> wherein the alkyl group contains less than 6 carbon atoms with hydroxylamine, followed by a Beckmann rearrangement, with optional subsequent hydrolysis of the 17b -acyloxy group; (d) oxidation of a 17b -hydroxy product to the corresponding 17-keto-compound; and (c) hydrogenating a product containing a double bond in ring A. The compounds of the invention have anabolic and androgenic activity. 17b  - Acetoxy - 4 - aza - 17a - methyl - A - homo - 5a  - androstan - 4 - one and the corresponding 17b  - hydroxy compound are obtained as by-products from process (c) above.
Patent GB-479519-A (GB)
Title: Sedimentation apparatus
IPC: B01D21/06
Filed: 1936-06-05
Abstract: 479,519. Gravity-separation apparatus. DORR CO., Inc. June 5, 1936, Nos. 15832 and 15833. Convention dates, June 14, 1935 and April 25, 1936. [Class 111] [Also in Group XXIV] Rigid frame-work arms 16, Fig. 12, which carry scraper blades 24 moving over the bottom of a settling-tank, are formed of braced longitudinal members. and connected to a central framework 34, which rotates about a central column 14, by hinges which are spaced vertically and horizontally so as to afford an inclined hinged axis which will permit the blades to swing upwardly and rearwardly if they meet abnormal obstruction. As shown in Fig. 5, the framework of the arms is rectangular in cross-section and hinge pins 22 are arranged at opposite corners so that the arms turn about a diagonal axis. Fig. 6 shows arms of triangular cross-section with hinge pins 22 at the ends of the base. As shown in Fig. 14, the central framework 34 comprises uprights 42 with horizontal ties 43, 44, diagonal ties 45 and corner braces 47. Brackets 23 are provided to take the hinge pins of the arms 16. The frame 34 is suspended from a rotating bearing- member 32, Fig. 13, by V-shaped members 51. A downward extension 41 of the frame 34 comprises a ring 39 to which are attached rakes 40, Fig. 12, moving in the sludge sump 12. The liquid is supplied to the tank from a duct 90 up the central column 14 and is distributed in the tank by an annular baffle 64 carried by the frame 34 and having slots 93 in its lower portion. The bearing member 32 has an internal annular gear 76 and is driven from an electric motor M through speedreducing gear SR and a pinion 70. The internal gear 76 is engaged by two gear-wheels 75, each of which is connected to the pinion 70 by its own speed-reducing train 74, 73, 72, 71. The pinion 70 is mounted with the casing of the speed-reducer SR so that it may have slight horizontal movement to vary its engagement with the wheels 71 and equalize the load passing through the trains of which they form part. Specification 399,297 is referred to.
Patent GB-291383-A (GB)
Title: Improvements in or relating to internal combustion engine-electric generator power units
IPC: B60L50/30
Filed: 1928-05-31
Abstract: 291,383. Associated Electrical Industries, Ltd., (formerly Metropolitan- Vickers Electrical Co., Ltd.). (Assignees of Wilson, J. R.). May 31, 1927, [Convention date]. Electric systems for transmitting mechanical power; regulation, automatic.-The load on an internal combustion engine 10 driving a vehicle through an electric generator 14 and a motor 16 is kept within predetermined limits while the vehicle is running by regulating the excitation of the generator. The engine 10 is connected to a centrifugal governor 19 which moves a sleeve 22 endwise against the action of an adjustable spring 23. A contact device 42 carried by the sleeve completes circuits at the limits of a predetermined range of speeds for a pilot motor 76 operating a field rheostat 74. Outside this range of speeds the governor operates a butterfly valve 33 in the fuel pipe. A lever 11 first opens a throttle to start the engine and then rotates a drum 52 to the idling position, wherein a switch 67 is energized to close the field circuit of the generator 14, and also a circuit is completed through contact 61 to return the rheostat 74 to its " all in " position. Further rotation brings the drum to the " running " position wherein a switch 17 is energized to close the circuit of the motor 16. Reference has been directed by the Comptroller to Specification 274,921.
Patent GB-125559-A (GB)
Title: Improvements relating to the Aerofoils of Aircraft.
Inventor: SHAW WILLIAM ROBERT DOUGLAS
IPC: B64C3/00
Filed: 1918-10-02
Abstract: 125,559. Shaw. W. R. D. Oct. 2, 1918. Planes, construction and arrangement of.-The superposed planes of aircraft are made of triangular outline and arranged with the apex of one plane forming the tip and the apex of the next plane forming the root adjacent the fuselage. Fig. 1 shows biplane wings comprising an upper plane a b c and a lower plane d e f, the part a b f being adjacent the fuselage. Tension members a, d, b e, c f and struts a f, b f, c d, c e are provided. The planes are staggered, and the trailing edge of the upper plane may be vertically over the leading edge of the lower plane, or vice versa. Steering and balancing; stopping way.-One of the planes may be adjusted about the axis c f by varying the lengths of the tension members a d, b e, which may be the control cables; the same arrangement may be applied to air-brakes, elevators, ailerons, &c. For example, the upper plane may constitute the fixed tail-plane, and the lower plane the elevator.
Patent GB-255208-A (GB)
Title: Improvements in and relating to shuttle-swells in looms
IPC: D03D49/52
Filed: 1925-06-22
Abstract: 255,208. Fisher, F. June 22, 1925. Checking shuttles and pickers.-The cranked end B of a swell A is resiliently secured upon an integral stud portion D of a bracket E secured to the shuttle-box back, the swell projecting into the shuttle-box to act on the shuttle in such a manner that the greater part of the shuttle is brought into contact with the straight part of the swell and the shuttle-box back. The stud D passes freely through an aperture C in the cranked portion of the swell and is provided with an adjustable spring F resting in a recess G in the swell. In some cases, an adjustable curved blade spring secured to a bracket on the shuttle- :box and resting on the cranked portion of the swell is used in place of the spiral spring F. A blade spring secured to the stud and resting on the middle portion of the swell is provided to prevent vibration. The inner part of the cranked end of the swell is curved at K for bearing on the bracket E when the shuttle is not in the box. Rebound of the picker P is prevented by its engagement by the swell. The free end of the swell engages the stop-rod finger L.
Patent GB-588135-A (GB)
Title: Improvements in cathode ray tubes
IPC: H01J29/14
Filed: 1942-11-13
Abstract: 588,135. Cathode-ray tubes. TRICKER, R. A. R., BURROW, J. H., and WRIGHT, C. S. Nov. T3, 1942. No. 16048. [Class 39 (i)] A cathode-ray tube is provided with a screen of an alkali halide by evaporation from a pot so placed that the whole of the operative area falls within a sensitive zone in which the angle of incidence of the molecular beam from the pot lies at all points between 5 degrees and 50 degrees to the normal. Outside these limits the screen is found to give a fainter trace for a given intensity of the scanning beam. For potassium chloride the limits are 6-45 degrees. The chloride, bromide and iodide of caesium do not show the effect. The pellet 3 is contained in a pot 4 mounted at the entrance to a side tube 5 for convenience in eddy-current heating ; the support wire 8 for the pot acts also as the lead for the metal coating 7 to which the pot is connected by spring contacts. The whole of the screen 2 except for the inoperative edge 6 is within the sensitive zone. According to the Provisional Specification, the pot may be slightly withdrawn into the tube 5 so that area 6 is in the penumbra of the beam ; the resulting reduction in thickness may compensate for the reduced sensitivity.
Patent GB-141968-A (GB)
Title: Automatic advertising machines or automatic stereopticon
IPC: G03B23/10
Filed: 1919-06-26
Abstract: 141,968. Carson, C. E. June 26, 1919. Rotary disk apparatus. - A clockwork-driven wheel F<1> carrying lantern slides M in spring clamps N around its rim is mounted on a frame E slidably adjustable on two posts B, B<1>. The wheel is allowed an intermittent motion by an escapement W, W<1> which engages pins Y arranged around the wheel, and is oscillated by clockwork Q through a rotating disk R and a pitman S. To prevent rebound of the wheel F<1> a spring-pressed pawl Z<1> engages a series of pins projecting from the side of the wheel opposite to that having the pins Y.
Patent GB-1511901-A (GB)
Title: Forming lenses and lens blanks
IPC: B29D11/00
Filed: 1975-04-18
Abstract: 1511901 Moulding lenses BAUSCH & LOMB Inc 18 April 1975 [6 May 1974 8 April 1975] 16228/75 Heading B5A In the casting of lenses from material which changes volume on polymerization using a mould having a reservoir connected through a restriction to the moulding cavity, the mould cavity is completely filled and the reservoir at least partly filled with the polymerizable material, and the mould parts are configured to produce axial and/or radial alignment thereof. Preferably polymerization is inhibited in the reservoir during polymerization in the mould cavity so that material may pass to or from the cavity to compensate for any change in volume. In Fig. 3 a male member 13 is brought into contact with projections 131 on a female member 115 containing polymerizable material, thereby forming a mould cavity 133 and displacing excess material into an annular reservoir 135. The spaces between the projections 131 form part annular restrictions through which material can pass. The members 13 and 115 are made of glass to facilitate polymerization by U.V. irradiation through either of them. An annular shield 141 is used initially so that the centre is polymerized first, and finally the flash in the reservoir is polymerized. With certain cross-linking hydrophilic polymers the oxygen in the air inhibits polymerization and a nitrogen atmosphere is necessary during polymerization of the flash. In cases where a thermosetting material is heated to cure it both the initial expansion and the subsequent shrinkage of the material will be accommodated by the reservoir. In Fig. 7 the upper and lower female members 413, 15 are axially aligned with a very small clearance at 49 and 51. The viscosity of the moulding material and the weight of the upper member are chosen so that a thin film remains between the members 413, 15 to form a restricted connection 429 between the cavity 431 and the reservoir 433. The cured lens is machined by mounting the male member, with the lens still attached, on a lathe having a rotating fly cutter for generating the desired curvature.
Patent GB-216362-A (GB)
Title: Improvements in or relating to heating apparatus suitable for heating liquids
IPC: F24H1/10
Filed: 1923-06-22
Abstract: 216,362. Staniforth, H. June 22, 1923. Internally-fired boilers; geysers.-A liquid heater is constructed with a plurality of superposed similar separable sections, their outer walls each constituting a part of the outer wall of the heater and each section comprising an annular liquid receptacle and a baffle plate supported above the central aperture of the section. The liquid may be kept separate from the heating gases as shown or may be in contact with them, and the baffles may be liquid-holding. In the example shown separable annular sections 110 each support a liquid-holding baffle 150 above a central aperture 13.
Patent GB-380057-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H1/20
Filed: 1931-06-04
Abstract: 380,057. Contact-members for switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Jones, B. W. ; 316, Glenwood Boulevard, Schenectady, New York, U.S.A.) June 4, 1931, No. 16323. Convention date, June 6, 1930. [Class 38 (v).] In order to prevent " freezing," the moving contacts of an air break switch are tilted relative to the fixed contacts immediately after making contact with them. The bridging member 15 of the fixed contacts 11, 12 is free to slide along the stub 16 protruding from the moving arm 14 of the rotating rod 13, but is biased to the outer end by a spiral spring 18. When contact is made, the fixed and moving contacts are mutually parallel, but the latter are subsequently tilted by a projection 22 from the arm 14 which engages a U-shaped extension 21 in the bridging member. This breaks any slight weld between the contacts whilst still soft.
Patent GB-450900-A (GB)
Title: Improvements in the arrangement and mounting of axles for motor vehicles or trailers
IPC: B60G11/22
Filed: 1935-06-05
Abstract: 450,900. Vehicle wheel-suspensions. NORTH, O. D., 76, Elm Park Mansions, Park Walk, Chelsea, and HUGH, P. G., and SCAMMELL LORRIES, Ltd., 52, High Holborn, both in London. June 5, 1935, No. 16343. [Class 108 (ii)] In axles which are mounted on the chassis by means of a triangular system of stays the axle which is connected to the vehicle frame by shockabsorbing means has combined therewith two triangulated systems of stays with their convergent ends connected to the vehicle and their other ends connected to points near the outer ends of the axle, the latter ends of one pair of stays being connected to the axle and the corresponding ends of the other pair being connected to part of the vehicle frame. The axle 1 has welded thereto the outer ends 9<a> of a pair of stays or arms 9 which converge forwardly to the vehicle frame and are pivoted or flexibly connected to a frame member 11. A second system of triangulated bracing is disposed above the arms 9 and comprises bracings 12 the ends of which are welded to cross frame members 6 and to a cup 7 bolted to the frame member 11. The cup 7 has arranged concentrically thereto a second cup 8 to which the arms are welded, a flexible packing 14 being interposed and the cups are secured to the frame member 11 by means of a bolt 22, 23 with a washer 21 bearing on packing 20. Rubber buffers 7 are disposed between cups 4, 8 carried by the axle 1 and cross member 6 respectively. A transverse guiding link 16 may connect brackets 14, 15 secured to the axle 1 and cross member 6.
Patent GB-120275-A (GB)
Title: Inclination Indicator for Aircraft, Ships, and other Moving Bodies.
Inventor: DAVIS WALTER HENRY
IPC: G01C9/08
Filed: 1917-11-09
Abstract: 120,275. Davis, W. H. Nov. 9, 1917. Clinometers.-An inclinometer for aircraft, stated to be unaffected by centrifugal and other accelerating forces, comprises two pendulums A, B, swinging on a spindle S and connected respectively to the toothed ring A<3> and the planet case B<3> of an epicyclic gear, and a pointer N indicating on a dial D and fixed to a sleeve P<1> secured to the sun pinion P of the gear. One or each of the pendulums may extend above the spindle Sand carry a weight A<2>, B<2> adjustable in position thereon. Means for damping oscillations may be provided, and may comprise two light blades secured to the sleeve P'.
Patent GB-667126-A (GB)
Title: Improvements in hydraulic braking systems
IPC: B60T11/32
Filed: 1949-06-21
Abstract: 667,126. Hydraulic brakes. BRIAND, C. June 21, 1949 [Dec. 10, 1948; April 12, 1949], Nos. 16479/49 and 16480/49. Class 103 (i). A device for sealing off the defective piping in a hydraulic braking system of the type described in Specifications 349,520 and 470,671 and U.S.A. Specifications 1,952,557 1,986,763, and 1,897,230 comprises two pistons 11, 12 in a casing 7, pressure being supplied to the space between them by a master cylinder, and the spaces on the other sides of the pistons being connected to the wheel cylinders. The device is characterized in that the diametral clearance between the pistons and the cylinder walls is sufficient to allow flow to make up for slight leakage of liquid without causing movement of the pistons, the face of each piston facing the brake connection end of the cylinder being adapted to co-operate with that end of the cylinder for sealing off the corresponding braking circuit when the piston is moved to this end. A three-piston device for sealing off any of three circuits is also described.
Patent GB-443067-A (GB)
Title: Improvements in or relating to binding arrangements for sheets and leaflets
IPC: A01D90/00
Filed: 1935-06-07
Abstract: 443,067. Filing papers; bookbinding. MOLIER, G., MOLIER, C., and MOLIER, D. J. J., (trading as MOLIER & ZOON, G.), 14A, Prinsegracht, The Hague. June 7, 1935, No. 16570. Convention date, June 16, 1934. [Classes 16 and 146 (i)] In a binding arrangement for loose sheets &c. comprising substantially D-shaped flat clips 2 of open construction, the free ends 5, 6 of which and consequently the openings are located at the straight side of the D, which is at the back of the book, the free ends of the clips overlap each other. The leaves are formed with apertures to be engaged by the clips and the cover halves are formed with two sets of similar apertures arranged on each side of a fold and with overlapping back portions 13, 14. The clips are inserted through the covers and leaves, which are then turned to the position shown in Fig. 2, after which the back portions 13, 14 are united as by glueing. The clips are preferably somewhat resilient and flexible and are formed with rounded corners 8.
Patent GB-902016-A (GB)
Title: Improvements in or relating to semi-conductors
IPC: H01L21/00
Filed: 1959-05-14
Abstract: A rod of n-conductive silicon containing phosphorus as doping agent is zone-melted so as to remove a portion of the phosphorus by evaporation, the conditions of zone-melting being arranged so that the concentration of phosphorus in the rod after zone-melting is substantially constant, i.e. variations are at most 10% of the mean. The zone-melting may take place in a vacuum or an atmosphere of hydrogen.  The end of the rod which is melted last may be rotated at 100 revolutions per minute.  Specifications 795,191 and 809,250 are referred to.
Patent GB-535329-A (GB)
Title: Improvements in the manufacture and production of butadiene
IPC: C07C5/333
Filed: 1938-06-02
Abstract: 535,329. Butadiene. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.). June 2, 1938, Nos. 16586 and 21813. [Class 2 (iii)] [Also in Group III] Butadiene is prepared by leading n-butenes, which may be diluted with not more than ten volumes of an inert gas or vapour per volume of butenes, at temperatures between 600‹ and 800‹ C. over graphite or lustrous carbon at such a speed that the time of contact of the butenes or mixtures thereof is at the most one second. Contact of the gaseous reactants with alkali or iron must be avoided ; thus, the iron reaction tubes should be internally coated with, for example, copper containing a small amount of manganese, whilst if metal oxides are used as carriers for the catalyst they should be extracted with hydrochloric acid. Preferably the butenes should contain a preponderating amount of #-butylene or the latter used alone. Nitrogen, carbon dioxide and steam are mentioned as suitable diluent gases or vapours, and silica gel, aluminium and magnesium oxides as carriers. As a result of the short time of contact with the catalyst, only part of the butenes are converted into butadiene, but further decomposition is substantially avoided. The butadiene may be extracted from the product by means of cuprous chloride solution and the unchanged butenes again subjected to dehydrogenation. Examples are given. Specifications 303,998, [Class 2 (iii)], and 342,319 are referred to.
Patent GB-312672-A (GB)
Title: A new or improved cork product and process for its manufacture
IPC: B27K7/00
Filed: 1929-05-30
Abstract: 312,672. Tecca, C., and Del Turco, C. R. May 30, 1928, [Convention date]. Cork substitutes; compositions.-A plastic cork product is obtained by treating cork with an alkali in solution. Before hardening, which takes place by evaporation, there may be added vegetable or mineral dust, fibres, &c. Preferably an excess of alkali is added to the cork, and after the mixture has been allowed to stand the excess is neutralized by more cork or other substance. The composition may be provided with metallic reinforcement. The Specification as open to inspection under Sect. 91 (3) (a) states that oil, grease, soap, wax, resins, viscous albuminoid substances, gelatine, rubber, &c., may be added before hard. ening. This subject-matter does not appear in the Specification as accepted.