baber/WOPTO huggingface dataset:
Patent GB-1028111-A (GB)
Title: Homokinetic universal coupling with roller-action transmission
IPC: F16D3/227
Filed: 1963-01-28
Abstract: 1,028,111. Universal joints. DEMAG A.G. Jan. 28, 1963 [Jan. 27, 1962; July 18, 1962], No. 3523/63. Heading F2U. In a homokinetic universal joint roller acting bodies 3 are housed in recesses 6 in inner, 1, and outer, 2, members with substantially no rotational clearance. The roller acting bodies 3 may be balls held in cylindrical recesses 6 by spring retainers 4, 5 which may be annular plate springs or helical springs. The balls 3 may be retained by a cage which may be located to the median joint plane by levers pivoted to the inner and outer members. In a method of manufacture the outer member 2 is shrunk on to the inner member, the recesses are machined, the members separated and a radial clearance machined on the inner or outer member. In an embodiment allowing axial movement, Fig. 7, the inner member 22 is splined to a shaft 20 and is formed with a part-spherical outer surface received in complementary rings 28 in the outer member 26. Recesses 6<SP>1</SP> are formed in the inner and outer members for the reception of balls 3 retained in a two-part cage 23, 24 and held to the median plane by levers 25 pivoted in the inner and outer members and in links 29 joining the parts of the cage.
Patent GB-396120-A (GB)
Title: Improvements in and relating to signalling apparatus for road traffic and like purposes
IPC: G08G1/096
Filed: 1932-02-06
Abstract: 396,120. Road signals for controlling traffic. MELVIN, T. S. F., 4, Ross Gardens, Edinburgh. Feb. 6, 1932, No. 3564. [Class 118 (ii).] In road signals for controlling traffic of the kind wherein a number of auxiliary lights are successively lighted to indicate the proportion of time still to elapse before the main colour signal again changes, the auxiliary lights may comprise a series of red lamps d arranged in a compartmented casing around the main red signal lamp a, and a similar series of green lamps f around the main green lamp c. In a modification, Fig. 2, the main signal lights comprise red, green, and amber lamps arranged in pairs in a single compartmented casing g which is surrounded by a compartmented casing h housing a single amber lamp j and eleven pairs of auxiliary lamps i, one lamp of each pair being red and one green. When the main lamps are lighted, the small lamps of each pair of the corresponding colour begin to light up successively. The lamp casing may have one or two aspects. Instead of a single amber lamp j, there may be an amber lamp associated with each pair of auxiliary green and red lamps. Additional signals may be simultaneously displayed by the lamp casings k. A rotating switch contact arm is used.
Patent GB-156270-A (GB)
Title: Improvements in filtering apparatus
IPC: B01D37/04
Filed: 1918-03-02
Abstract: 156,270. Paterson, W. March 2, 1918. Filter-beds.-In a filtering installation comprising a number of filter beds supplied from a common source by means adapted to afford each bed a supply proportionate to its filtering area, such as weirs with measuring notches, or the device described in Specification 3069/15, [Class 135, Valves &c.], each filter bed is provided with means for regulating the outlet in accordance with the depth of water above the bed, as described in Specification 411/12. In the arrangement shown in Fig. 1, the. beds a receive water from a tank e over weirs d. The outlet of each bed is controlled by a valve f operated by a float g in the space above the filter, so that when the water above any filter rises, on account of the filter being choked, the corresponding outlet valve f is opened more widely. If it is undesirable that the water which should pass to one filter should be distributed among the others in the event of that filter being choked, an overflow may be arranged below the level of the weir d. If it is desired that the water passing over the weir d should not fall through an appreciable distance, an inlet chamber is provided. Fig. 2, communicating with the filter through a valve h operated by a float i.
Patent GB-349634-A (GB)
Title: Improvements relating to friction mechanisms for controlling motion between relatively movable members, such as for the stays for hinged lids
IPC: E05C17/22
Filed: 1930-02-04
Abstract: 349,634. Stays for hinged articles ; checks. KOLSTER-BRANDES, Ltd. and TILLER, P. A., Cray Works, Sidcup, Kent. Feb. 4, 1930, No. 3773. [Class 65 (i).] A device for retarding motion in one direction between two relatively movable members A, S comprises one or more blocks b pivoted at m to the member A and apertured for the passage of the member S. A spring t, adjustable by means of a screwed rod u acting on the hinged support E, tends to cant the blocks, thus exerting a frictional force on the bar S and opposing its motion in one direction. As applied for holding the lid of a cabinet open, the plate M, hinged to N, is secured to the side of the cabinet, and the member H fixed to the lid. According to the Provisional Specification the projection E is fixed.
Patent GB-808245-A (GB)
Title: Process for the preparation of í¸-22-halogen-24:24-diphenyl-cholenes
IPC: C07J9/00
Filed: 1957-02-04
Abstract: D 23 - 22 - Halogeno - 24 : 24 - diphenyl - cholenes are prepared by treating, e.g. for a period of about 10 to 15 minutes, D 23-24 : 24-diphenyl-cholenes, which may bear one or more double bonds in the nucleus and which may be substituted in the nucleus and/or in the side chain, with carboxylic imides or amides halogenated at the nitrogen atom in an inert solvent and in the presence of light with a wavelength in the range of from 265 to 315 mm , if necessary while protecting double bonds, esterifying or etherifying hydroxy groups and protecting other sensitive substituents possibly present in the nucleus.  The wavelength of the light is preferably of the range between 280 and 315 mm . Suitable inert solvents are carbon tetrachloride, dichloroethane and halogenated paraffins.  Suitable halogenated carboxylic amides and imides are N - halogen - succinimide, -parabonic acid, -hydantoin and -barbituric acid, and N-halogen derivatives of primary and secondary carboxylic amides such as of acetamide, propionic acid amide and diacetamide.  The preferred halogenating agent is N-bromo-succinimide, which is preferably added to a solution of the reactant at 70 DEG  C.  Since 22-bromo-cholenic compounds are unstable, it is preferable to add anhydrous sodium or potassium acetate to the reaction mixture to bind the hydrobromic acid formed.  D 23 - 24 : 24 - diphenyl - cholene reactants which may be used in the above process are D 23 - 3a  : 7a  : 12a  - trihydroxy -, D 23 - 3a  : 7a -dihydroxy-, D 23 - 3 - keto - 12a  - hydroxy-, D 23 - 3a  - hydroxy - 11 - keto - 12a  - bromo-, D 23 - 3b  - hydroxy - 12 - keto-, D 23 - 3a  : 11a -dihydroxy-, D 23 - 3a  - hydroxy - 11 - keto-, and D 23 - 3a  : 9a  - epoxy - 11 - keto - 24 : 24 - diphenyl-cholene.  Before the halogenation takes place, the reactants containing hydroxy groups are converted into ester groups, e.g. acetic ester groups, and preferably into easily saponifiable ester groups such as formyloxy or trifluoroacetoxy groups.  In the examples: D 23-3a  : 7a  : 12a  - triacetoxy-, D 23 - 3a  : 12b  - diacetoxy- and D 23 - 3a  - acetoxy - 11 - keto - 12a  - bromo - 24 : 24 - diphenyl - 22 - bromocholenes are prepared. The products of the above process can be further treated to split out hydrogen halide to introduce a further double bond, e.g. by treatment with basic agents such as tertiary amines-particularly pyridine, collidine, chinoline and dimethylaniline, and alkali and alkaline earth metal hydroxides and carbonates, carboxylic acid salts-particularly alkali metal and silver salts of aliphatic carboxylic acids, alcohols and phenols. Specifications 589,282, [Group IV], and 611,089 are referred to.
Patent GB-579683-A (GB)
Title: Improved garment pockets
IPC: A41D27/20
Filed: 1944-03-01
Abstract: 579,683. Pockets. ERDMAN, A March 1, 1944, No. 3830. [Class 141] A pocket of the type having the opening for an inner secret pocke covered by a flap which is secured within the outer pocket is formed with the outer pocket shallower than the inner one, the latter having ar additional fastening at its upper end As shown, the inner pocket 1 is closec by a fastening 13 and provided with a flap 2 secured within the outer pockel 3 by a fastening 9. Reference has been directed by the Comptroller to Specification 25908/12 [Class 141].
Patent GB-724551-A (GB)
Title: Improvements in and relating to vacuum cleaners
IPC: A47L9/22
Filed: 1953-02-11
Abstract: 724,551. Mounting electric motors. GENERAL ELECTRIC CO. Feb. 11, 1953 [Feb. 13, 1952], No. 3845/53. Class 35. A vacuum cleaner has a casing 1 with an annular stepped wall extending inwardly so as to receive a resilient annular gasket 22 having spaced lugs 36, 37, 38 to support a motor mounting flange 35 and a tapered web 46 arranged to press resiliently against the motor-fan unit. This gasket also serves to seal the unit between the high-pressure and lowpressure sides of the cleaner. The gasket has a thin, outwardly extending flange 23 to be seated on and compressed against the step 20 of the wall 19 by a metal sealing ring 24 which is also the lower end of a perforated motor guard and bag support 25. The ring 24 may have a depressed rib 28 and the gasket flange 23 may also have ribs 29, 30, Fig. 3 (not shown), so as to improve the seal. Fig. 2 shows the shape of the sealing and motor-supporting gasket 22 which is so shaped and mounted that it affords a resilient support in shear at the lugs 36, 37, 38 against upward or downward movement of the unit. The lug 38 may also serve to seal to motor leads 15 by making the slots 41 on the top and through the body of this lug. Specification 724,552, [Group XXVIII], is referred to.
Patent GB-1259694-A (GB)
Title: Improvements in or relating to photographic cameras and film cartridges
Inventor: NERWIN HUBERT
IPC: G03B17/30
Filed: 1969-01-23
Abstract: 1,259,694. Photographic film cassettes and cartridges. EASTMAN KODAK CO. Jan. 23, 1969 [Jan.24, 1968], No. 3878/69. Heading G2A. A photographic film cassette or cartridge has a roll-film supply chamber 19 having a continuous cylindrical inner surface interrupted only by a parallel sided passageway 21 arranged to guide film from the supply chamber along a non-rectilinear curved path the radius of curvature of which is greater than that of the supply chamber and is constant or gradually increasing throughout the length of the passageway. The cartridge 11 has a cylindrical take-up chamber 24 with a similarly curved passageway 25, the chambers being separated by a flat exposure aperture 36 which communicates tangentially with the passageways. The curvature of the passageways decreases evenly from the point where it merges with the chamber wall, or the curvature of the passageway may be substantially constant or the passageway is formed by a plurality of incremental surfaces of constant curvature. The passageways are preferably at least equal in length to that of an exposure frame.
Patent GB-348140-A (GB)
Title: Improvements relating to barbituric acid derivatives
Filed: 1930-02-05
Abstract: D 2, 3-Cyclopentenylbarbituric acids are prepared by condensing urea with an alkyl- or aryl-D 2, 3-cyclopentenyl malonic acid ester in the presence of an alkali or alkaline earth compound.  Alternatively, a monoalkyl- or monoaryl-malonic acid ester is condensed with urea in the presence of an alkali or alkaline earth compound, and the product treated with D 2, 3-chlorocyclopentene.  In either of the processes, the urea may be replaced by an equivalent compound of carbonic acid, e.g. phosgene, carbonic esters, chlorocarbonic esters, carbamates and guanidine, whilst the malonic acid ester may be substituted by an equivalent derivative of the acid, e.g. the amide, acid chloride or nitrile.  Finally, the ethyl ester of mono- or bis- D 2, 3-cyclopentenylmalonic acid may be condensed with urea in the presence of an alkali or alkaline earth compound to give the corresponding barbituric acid.  Examples are given of the preparation of ethyl-, allyl- and phenyl-D 2, 3-cyclopentenylbarbituric acids and of mono-and bis- D 2, 3-cyclopentenylbarbituric acids.  Phenyl- D 2, 3-cyclopentenylmalonic acid ethyl ester, employed in the manufacture of the corresponding barbituric acid above, is obtained by treating sodium phenylmalonic acid ethyl ester with D 2, 3-chlorocyclopentene. Reference has been directed by the Comptroller to Specification 231,150, [Class 2 (iii), Dyes &c.].
Patent GB-229992-A (GB)
Title: Improvements in or relating to gun mountings for use on aircraft
IPC: F41A27/30
Filed: 1923-11-27
Abstract: 229,992. Vickers, Ltd., and Scarff, F. W. Nov. 27, 1923. Mountings for use on aircraft.-The springs for counterbalancing the U- shaped gun-carrying arm C used in mountings of the ring type are duplicated on each side of the ring, one spring or set of springs on each side being readily removable when one gun is to be carried by the elevating arm instead of two. The invention is shown applied to the mounting described in Specification 229,751 in which the free ends of the arm C are hinged at c to brackets D adjustable on the movable ring B. The spring devices, two of which are normally provided on each side of the ring, each comprise a pair of springs E compressed between members E<1>, E<3> connected by keyhole slots with pins e<2>, e<4> on the bracket D and arm C respectively.. The outside spring device can be readily removed laterally by inserting a stop-piece E<x> in the fork E' and elevating the arm C until the pin e<4> enters the enlarged part of the slot e<3>. In a modification, two springs on each side of the ring are mounted on the inside and outside of a readily removable tube.
Patent GB-440070-A (GB)
Title: Improvements in and connected with supports for window furnishings such as curtains,blinds, valances, and the like
IPC: A47H1/12
Filed: 1935-02-08
Abstract: 440,070. Curtain &c. supports. VELLERE, A. E., 79, Dads Lane, BENCE, A. A., 44, Barn Lane, both in King's Heath, and BERRY, W. R., 892, Kingstanding Road, Erdington, both in Birmingham. Feb. 8, 1935, No. 4057. [Class 52 (v)] Brackets for window furnishings are made of sheetmaterial with apertures the sides of which engage with the sides of apertures made in the girder-like rails on which the curtains run, so that the various parts can be assembled without screws &c. Fig. 1 shows a sheet-metal bracket consisting of a body 1 with rectangular flanges 3, 4 and a lug 5 extending horizontally, upwards or downwards. It is engaged with lugs 9 by means of keyhole slots 8. To accommodate an I-section curtain rail, inverted T-shaped perforations 12 are made ; a saw-cut in the lower edge of the I-section enables it to be fixed securely to the lower edge of tone of the perforations 12. Two such saw-cuts are made at each end of the curtain rail to facilitate adjustment for various distances between the brackets. The lower parts of the apertures 12 may have enlargements 19 for receiving means for suspending the pulleys over which move the curtain-drawing cords. A valance may be supported by hooks inserted in an aperture 22 in each bracket, or in a slot on the lug 5, or in a bent metal strip 28, Fig. 4, inserted in the lug 5. An inner valance may be supported by means of apertures 30 &c., in the parts 1, 4, and roller-blind spindles in the apertures 39. Fig. 11 shows an intermediate bracket comprising a T-slot 44 for the upper part of an I-section curtain rail, a slot 45 for the inner valance, and a hook 46 for the outer valance. An L-formed bracket with hook-like parts engageable with the slots 35, may be used for supporting a valance, and plates with studs 9 may be used as backings for the brackets.
Patent GB-611322-A (GB)
Title: Improvements in planetary grinding machines
IPC: B24B41/00
Filed: 1946-02-08
Abstract: 611,322. Grinding and polishing. BRYANT CHUCKING GRINDER CO. Feb. 8, 1946, No. 4062. Convention date, Jan. 10, 1945. [Class 60] A grinding-machine comprises a casing, a hollow rotary master shaft journalled in said casing, a motor with a casing supported within said master shaft and having a rotor with its axis parallel to the axis of said master shaft, means within said shaft for adjusting said motor transverse to said axis comprising a slide supported within the master shaft for motion in the direction of the axis of the said master shaft to adjust said rotor axis toward and from coaxial relation to said master shaft axis, a stop to limit the adjustment of said motor in one direction to such coaxial relation to the master shaft, means for moving said motor adjusting means, a grinding- wheel carried by said rotor beyond one end of said master shaft and means for rotating said master shaft. The grinding-sheel 29 is mounted on the spindle 28 of an electric motor 27 which is mounted eccentrically in the enlarged portion 20 of a hollow shaft 12 mounted in a casing 11 and rotated by a pulley 16. The motor 27 has radial guide plungers 85 moving in the casing to enable the eccentricity to be varied, this being effected by providing on the motor casing inclined ways 40 which are engaged by inclined side members 43 of a yoke carried by sleeve 46 longitudinally movable in the shaft 12 by screw-and-nut mechanism 58, 65 operated through worm gearing by a hand wheel. A stop 46a limits adjustment in one direction to the amount required to bring the grinding spindle to a position coaxial with the shaft 12. A balance weight 99 is linked by a pivoted lever 990 to the motor casing so as to be simultaneously adjusted in the opposite direction. Cooling liquid is circulated through a helical groove in the motor casing and lubricant is supplied to the spindle. Specification 560,809 is referred to in connection with hydraulic traverse of the grinding head relative to the work.
Patent GB-267284-A (GB)
Title: Improvements in or relating to oil-immersed electric transformers
IPC: H01F27/14
Filed: 1926-02-12
Abstract: 267,284. Peebles & Co., Ltd., B., and Rodger, J. W. Feb. 12, 1926. Regulating transformers.-The tank A of an oil-immersed transformer is provided with one or more extensions B forming an outlet for the' operating rod F of a tapping switch and provided with a pressure relief valve. The latter consists of a cap C pivoted at C<1> and adapted to cooperate with an oil seal C<2>. The switch rod F is supported in a bush E carried by an apertured plate D. The switch is of the type in which the desired position is selected by withdrawal and rotation of the rod F which is provided with a radially-projecting lug H co-operating with slots G<1> in the upper part of th bush E. The latter is provided with a flange G<2> so that the switch may be locked in the selected position by a padlock inserted through a hole in the lug H. A plate K is provided over the extension B to prevent the entry of dirt when the cap C is open. A breathing pipe J<1> is provided above the hot oil level connecting the extensions to an expansion vessel J.
Patent GB-794197-A (GB)
Title: Improvements in or relating to means for obviating or mitigating the passage of windor windborne matter below exterior doors
IPC: E06B7/232
Filed: 1955-02-11
Abstract: 794,197. Draught excluders. McPHERSON, D. Feb. 10. 195,6 [Feb. 11, 1955], No. 4076/55. Class 20(3) Weather excluding means for exterior doors comprise a metal trough-section strip 10, bedded on mastic 22 on the threshold 21, and a metal L-section strip 18, one limb 19 being screwed to the door 20, and the other limb 26 underlapping the return bend portion 16 of the strip 10. For an inwardly opening door, as in Fig. 2, the wall 13 provided with drain holes 17 is coplanar with the outer surface of the door when closed. For an outwardly opening door the smaller wall 12 is the outer one and contains the drain holes 17, and the limb 19 is mounted on the outside of the door. Vertical ridges along both longitudinal edges of the outside of the door co-operate with posts secured to the door frame to seal the sides of the door.
Patent GB-872490-A (GB)
Title: Improvements in or relating to electric switching apparatus
IPC: H01J17/04
Filed: 1959-02-05
Abstract: 872,490. Valve multistable circuits; valve relay circuits. GENERAL ELECTRIC CO. Ltd., and WEST, G. M. March 10, 1960 [Feb. 5, 1959], No. 4097/59. Class 40(6) A cold cathode tube having a trigger electrode is used to control a mercury switch, the arrangement being such that triggering the tube to initiate a discharge causes the mercury switch to change its state. A cold cathode tube 1 has connected in its anode circuit the energizing coil 8 of a mercury switch, (Fig. 2, not shown). Triggering the tube on any one of the inputs 38-41 causes it to strike and energize the operating coil of the switch. A second tube 2 having a cathode impedance 46<SP>1</SP> common to the first tube is connected in a similar circuit arrangement. Triggering this tube on one of its inputs 38<SP>1</SP>-41<SP>1</SP> causes capacitor 44<SP>1</SP> to discharge through the tube, and the consequential rise in cathode potential extinguishes tube 1 releasing the mercury switch. Resistor 56 and capacitor 57 provide a low pass filter to prevent triggering by stray signals, a rectifier 58 being provided to prevent a charge being built up on capacitor 57. As described in the Provisional Specification the two tubes 1, 2 have their anodes coupled via a capacitor, and their cathodes taken direct to earth. The tubes may be triggered either directly or by a delayed pulse.
Patent GB-713877-A (GB)
Title: Improvements in or relating to scaffold frame units
Inventor: HAWES ALBERT HENRY
IPC: E04G1/14
Filed: 1952-02-19
Abstract: 713,877. Scaffold frame units. KWIKFORM, Ltd. Feb. 12, 1953 [Feb. 19, 1952], No. 4329/52. Class 20 (2) A scaffold H-frame unit has a ledger clamp mounted permanently on the outer side of each vertical member at such a position in relation to the transverse member as to secure the ledger tubes in a position so that a putlog tube placed on the ledger tubes is at the same height as that of the transverse member, thereby providing a level support for a platform or staging. The vertical members 11 which have spigots 12, 13 for coupling to vertical scaffold tubes, are permanently connected by a transverse member 14 of overall length greater than the overall length of the vertical members 11, and ledger clamps 16 are secured to the outer side of each vertical member 11. Clamps 25 for securing the vertical scaffold tubes on the spigots 13 are permanently secured to the vertical members 11. A bracing tube 15 is connected between the clamps 25 and is secured to the underside of the transverse member 14. In a modification, Fig. 3, not shown, the bracing tube 15 is connected at its ends directly to the vertical members 11 and a modified form of clamp for securing the vertical scaffold tube is employed. The spigots may be omitted and the vertical members 11 formed as plain ended tubes. Specifications 642,365, 642,367 and 642,384 are referred to.
Patent GB-772253-A (GB)
Title: Improvements relating to electrical apparatus
IPC: G01F23/26
Filed: 1954-02-15
Abstract: 772,253. Automatic voltage control systems. FIELDEN ELECTRONICS, Ltd., and FIELDEN, J. E. Jan. 21, 1955 [Feb. 15, 1954], No. 433C/54. Class 38 (4). [Also in Group XXXVI] The amplitude of oscillation of a Hartley oscillator 10 is stabilized by measuring the voltage across the tank circuit 13, 14 by means of a coil 21 and rectifier 30. The rectified output is applied to a meter 17 the moving element of which forms a variable condenser. This condenser, in series with condenser 15, forms a potential divider in the grid circuit of the valve to correct the feed-back voltage of the oscillator. The output of the oscillator is coupled to a capacity bridge for measuring liquid levels (see Group XXXVI).