baber/WOPTO huggingface dataset:
Patent GB-1152523-A (GB)
Title: Variable-Ratio Lever Mechanisms.
Inventor: LACROIX GEORGE RANCLIFFE JEHAN
IPC: B60T7/10
Filed: 1967-01-19
Abstract: 1,152,523. Hand brake linkage. VAUXHALL MOTORS Ltd. 21 Dec., 1967 [19 Jan., 1967], No. 2813/67. Addition to 1,092,314. Headings F2E and F2K. A hand brake lever mechanism, e.g. for a motor vehicle, has an initial stroke increment producing relatively large output movement with low output force to take up slack, and a final stroke increment at a relatively high mechanical advantage giving a high output force, for example, to cable or rod linkage connected to brakes. The variable ratio lever system comprises a double arm lever 12, 13 (Fig. 5), pivotally mounted by a pivot C on one end of an output actuator lever 14 which is mounted at its other end on a fixed pivot O attached to a bracket 17 fixed to the vehicle frame. The lever 14 consists of a pair of spaced interconnected parallel plates. An output linkage 15 is connected by a clevis to the pivot C. The input lever arm 12 is connected by a pivot D to an input mechanical linkage and is movable thereby, while its arm 13 is connected by a pivot G1 to one end of a yieldable link in the form of a compression spring 16 the other end of which is connected to the actuator lever 14 by a pivot G2. A link member 20 pivotally connects the input lever arm 13 point A to a pawl lever 19 at a pivot B. The pawl lever is also pivotally mounted at one end on the fixed pivot O, while its other end portion forms a pivotal mounting for a locking pawl 21 which in one position of the mechanism can engage a ratchet 18 on an arcuate member which is bolted to the bracket 17 and to the vehicle frame. A compression spring 22 biases the pawl 21 toward the ratchet and a pin P on the pawl engages an abutment 25 on lever 14 to prevent the pawl 21 engaging the ratchet during a portion of the input lever stroke. Operation.-During an initial increment of movement of input lever 12, 13 the mechanism moves as a whole about the fixed pivot O, taking in slack in the output linkage. In a further increment of movement the resistance offered by the output linkage 15 is such that the compression spring 16 yields at a predetermined load thereon and this allows the link member 20 to move the pawl lever 19 about the fixed pivot O to bring the locking pawl into engagement with the ratchet 18, the pin P having slid off the abutment 25. When the pawl 21 engages the ratchet 18 no further movement of lever 19 is possible since its two ends are held fixed. During further movement of lever 12, 13 movement of lever 14 occurs at increased mechanical advantage by the action of a chain mechanism comprising link member 20, part AC of arm 13, part CO of lever 14 and lever 19. Finally, the pivotal connection G1 crosses a line joining C and G2 whereupon overcentre action occurs, which causes the compression spring to assist the final movement of input lever 12, 13 to the "on" position of the brakes.
Patent GB-635326-A (GB)
Title: Improvements in or relating to frictional feed apparatus
IPC: B21D43/09
Filed: 1948-01-30
Abstract: 635,326. Feeding webs or sheets. DUBILIER CONDENSER CO. (1925), Ltd., COURSEY, P. R., and MUNDAY, C. H. Jan. 30, 1948, No. 2832. [Class 100 (i)] [Also in Group XXII] Apparatus for feeding sheets, strips or the like articles, intermittently or at will, comprises a continuously driven driving device frictionally engaging one side of the article, a pressure roller disposed on the other side of the article and comprising an axle having an eccentric bearing surface about which an annular tread is free to rotate, and means to determine the duration of feed by turning the axle so that the tread presses the article against the driving device for the said duration. The driven feed roller A is driven manually or by a motor and has a resilient tread A2 on which rests the flexible sheet or strip C to be fed. In a bearing B1 in a supporting wall B is rotatably mounted a spindle D having integral with it an eccentric stub axle D2. Rotatable on the axle D2 is a metal sleeve D4 having secured on it a cylindrical rubber tread D5. By rotating a crank or lever D6 the spindle D turns to cause the tread D5 to press the strip C against the rotating roller A2 for feeding, or to release the strip to interrupt feeding. A fixed stop B2 is provided to limit the former movement of the lever. Four flexible strips, such as two metal electrode foils and two paper spacer elements to be wound to form an electrical condenser may be fed by means of an assembly wherein each strip rests on a feed roller driven by hand or by an electric motor through gearing, and wherein each strip has a pressure roller as described, the pressure roller spindles each having a toothed quadrant engaging a rack connected through a tie-rod with a relay, so that on energizing a relay the corresponding strip is fed forwards. On deenergizing the relay, the rack is moved back by a return spring. Alternatively, each pressure roller may be operated by a hand-lever, which may, moreover, be loaded by a weight adjustable along the length of the lever to vary the pressure on the strip, the fixed stop being omitted. In another form, the pressure rollers may be operated by cams or the like, whereby the feed of the various strips is effected automatically according to a predetermined sequence. Specifications 611,900 and 632,134, [both in Group XXXVI], are referred to.
Patent GB-396101-A (GB)
Title: Improvements in or relating to electric secondary or storage batteries
IPC: H01M4/64
Filed: 1932-01-30
Abstract: A battery electrode is made of an alloy consisting of 35 per cent of nickel, 5 per cent of chromium, the rest being of iron. Before being used the alloy is subjected to a pickling operation which may comprise immersion in a solution of 1 litre of hydrochloric acid, 200 c.c. of nitric acid, 1 litre of water and 100 c.c. of a restrainer, the latter consisting of a mixture of ,66 kg. of powdered glue, 1 litre of sulphuric acid and 2 litres of water.  Pickling may alternatively be effected by subjecting the alloy to electrolytic treatment in hydrochloric acid.
Patent GB-445059-A (GB)
Title: Typewriter
IPC: B41J29/13
Filed: 1935-01-29
Abstract: 445,059. Typewriters. PAILLARD & CIE, SOC. ANON., E., Yverdon, Vaud, Switzerland. Jan. 29, 1935, No. 2949. Convention date, July 30, 1934. [Class 100 (iv)] Portable type-lever machines.- Framework comprising relatively adjustable front and rear parts, supporting the action and paper-carriage respectively, is attached to a base which completely closes the machine at the bottom and is provided with a detachable cover for the machine. The framework of the machine shown in the Figure comprises front and rear members 1, 53 which support the action and paper - carriage respectively and are adjustably connected by means of screws 2 passing through slots 3. The members are provided with cross-bars 8, 10, 12. A base 93, formed with a rim 30, is secured to the members 1, 53 by means of screws 94, 95. When transported in vertical position, the machine rests on the screws 94 or 95. A cover 97 is provided at the rear with slots for engaging the screws 94, and at the front with a handle, and pivoted hooks 99 for engaging the screws 95. The cover fits snugly, and prevents movement of the typelevers 37, paper-carriage 54, and other parts during transport of the machine. The Specification as open to inspection under Sect. 91 comprises also subject-matter relating to a carriage-mounting, a ruling-device, escapement, back-spacing, ink-ribbon, and accenting mechanism, and a type-lever action. This subject-matter does not appear in the Specification as accepted but is now contained in Specifications 445,079, 445,080, and 445,081.
Patent GB-834524-A (GB)
Title: Process for the preparation of fibres and related shaped articles of polymers and copolymers of acrylonitrile
IPC: C08F20/44
Filed: 1957-04-16
Abstract: Acrylonitrile, alone or in admixture with another monoethylenically unsaturated monomer, is polymerized in solution in dimethyl sulphoxide to produce a solution or dispersion of polymeric material which is spun into fibres by use of a coagulating liquid. Copolymerizable monomers specified are vinyl acetate, allyl alcohol, methyl and ethyl acrylates, dimethylaminoethyl acrylate, 2-sulphoethyl acrylate, methacrylonitrile, acrylamide methacrylamide, acrylic acid, vinyl acetic acid, itaconic acid, fumaronitrile, vinyl benzene sulphonic acid and its salts, vinyl and allyl sulphonic acids and their alkali metal salts and 2-vinyl-5-ethyl pyridine. Polymerization may be assisted by catalysts such as azobisisobutyronitrile and persulphates.
Patent GB-710797-A (GB)
Title: Improvements relating to copper-containing disazo dyestuffs
Filed: 1952-02-06
Abstract: The invention comprises complex copper compounds from disazo dyestuffs of the general formula:- <FORM:0710797/IV(c)/1> (wherein one X represents hydrogen and the other a sulphonic acid group, Y represents a 1 : 4-phenyl or 4 : 4\sv-diphenyl radical, and Z an acylamino radical), and the preparation thereof by coupling tetrazotized o-dianisidine with the appropriate coupling components in either order and treating the resulting disazo dyestuff with an agent yielding copper.  Z may be an aroylamino radical or preferably an alkoylamino radical of not more than 8 carbon atoms or an alkoxycarbonylamino radical in which the alkyl group contains not more than 9 carbon atoms.  The two couplings preferably take place in an alkaline medium, the naphtholdisulphonic acid being advantageously coupled first, whilst the coppering may be effected in an aqueous solution or suspension at a raised temperature, if desired in the presence of additives such as wetting or dispersing agents or salts such as sodium phosphates or sodium chloride, the agents yielding copper being normal or complex salts of copper with inorganic or organic anions.  The products, in the form of their alkali metal salts, are suitable for dyeing natural and regenerated cellulose fibres. Examples describe the use of derivatives of 2 : 5 : 7-aminonaphtholsulphonic acid in which Y is a 1 : 4-phenyl radical and Z is acetylamino, benzoylamino salicoylamino, p-toluylamino or -NHCOOR (where R is -CH3, -C2H5, -C2H4OCH3, -CH (CH2)-CH2OCH3, -C3H6OC3H6OCH3, -CH (CH9)- CH2OC2H5, -C2H4OC2H5 or -C3H6OC3 H6OC2H5), and in which Y is a 3\sv-sulpho-4 : 4\sv-diphenyl radical and Z is acetylamino.  In a further example, cotton is dyed blue with the copper complex of the dyestuff 1\sv-naphthol-3 : 8- disulphonic acid \sM o-dianisidine --> 2-(4\sv-acetylaminophenylamino)-5-naphthol-7-sulphonic acid from a bath containing Glauber salt and sodium carbonate. Specification 352,956 and German Specification 196,924 are referred to.
Patent GB-1516605-A (GB)
Title: Radiofrequency signal-distribution device
IPC: H04N7/16
Filed: 1977-01-26
Abstract: 1516605 Directional couplers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Jan 1977 [29 Jan 1976] 03142/77 Heading H1W [Also in Division H4] RF signal distribution device for use with VHF and UHF signals comprises a number of directional couplers connected in series between the input end and output end of a line 9, each directional coupler having a coupling loop 8a, 8b, ... 8l connected at one end to a respective output terminal 6a, 6b, ... 61, and each coupling loop having a length which is a quarter wavelength at a frequency in the TV UHF range, with the lengths increasing in the direction from the input end to the output end of line 9. An attentuation filter 2, is provided in the input to the main line 9, the attenuator having a loss in the frequency range between the standard TV UHF and VHF ranges which is higher than the loss within those ranges. The increase in coupling loop length tends to equalize the level of signal fed out from each coupler, at the expense of some variation in attenuation across the band at each port, the variation across the band being corrected by the insertion of the attenuation filter 2. The lengths of the coupling loops increase by about 2 to 3 % between adjacent loops, varying from 61 mm to 85 mm. Preferably subscribers having the greater line lengths are connected to couplers at the input and of the main line.
Patent GB-546307-A (GB)
Title: Improvements in or relating to a lens system
IPC: G02B17/08
Filed: 1941-03-07
Abstract: 546,307. Optical objectives. KODAK, Ltd., and HOUGHTON, J. L. March 7, 1941, No. 3155. [Class 97 (i)] The spherical aberration of a concave mirror used as an objective is corrected by a plurality of spherical lens elements, the combination of elements having a power of substantially zero and spherical aberration equal and opposite to that of the mirror. The lens combination may comprise one positive lens and one negative lens of substantially equal absolute power, and slightly air-spaced or cemented together. They may be placed substantially at the centre of curvature of the mirror or elsewhere, and may have substantially equal dispersions; the positive lens may have the higher refractive index (preferably .08 higher) and may be made from a glass described in Specification 462,304, [Group XXIII]. Fig. 2 shows a symmetrical triplet in which the elements I, II, III are of the same glass and air-spaced. Data for four examples are set out. According to the Provisional Specification the correcting lenses may be used in conjunction with a refracting image-forming system. Specification 602,576 also is referred to.
Patent GB-687757-A (GB)
Title: Improvements relating to travelling electric current collectors or pick-ups
IPC: H02G5/04
Filed: 1951-02-09
Abstract: 687,757. Supplying current to moving conductors. TOURTELLIER, M. Feb. 9, 1951, No. 3192/51. Class 38 (i). [Also in Group XXX] In a travelling multipolar collector installation in which several conductor rails are mounted side-by-side, each conductor rail 3 is provided with a separate insulating sheath 1, 47 which embraces also the collector roller 7 on the collector carriage. The sheath may be encased in a metal cover, Fig. 3 (not shown), or it may be flexible to enclose the rail only or both the rail and the carriage, thereby avoiding the harmful effects of the surrounding atmosphere, Figs. 5, 6 (not shown). In the latter case, Figs. 11, 13, the rail 21 is enclosed by a two-part sheath of which the part 36 is rigid and the part 37 is flexible and is moved aside as at 371 by a tapered end 30 on the collector carriage 32.
Patent GB-536318-A (GB)
Title: Improvements relating to adjustable panels, especially windows
IPC: B64C1/14
Filed: 1940-02-20
Abstract: 536,318. Sliding windows. DUTFIELD, A. E., RAWLINGS, E. J., and RAWLINGS MANUFACTURING CO., Ltd. Feb. 20, 1940, No. 3223. [Class 20 (iii)] An adjustable panel 4, especially for the windows of aircraft, of the kind in which the panel when closed is flush with an adjacent fixed panel 3, is provided with top and bottom straight runways 5, 6 and rails 7, 8 which are deflected at one end and are engaged by studs 5x, 6x and shoes 7x 8x carried at the four corners of the adjustable panel. By pulling a knob 9 on the slidable panel inwardly, and laterally, and operating a central push pin 9<SP>1</SP> which disengages a latch holding the slidable panel, the latter is displaced inwardly. The panel is now moved by gearing actuated by a handle 14, and consisting of a pinion 12 and rack bar 11 pivoted at one end to the trailing top corner of the slidable frame, the bar 11 having slight lateral movement across the top edge of the panel.
Patent GB-844324-A (GB)
Title: An improved shelf divider
Inventor: BARNETT GEOFFREY HOWARD
IPC: A47B57/58
Filed: 1958-02-01
Abstract: 844,324. Shelf fittings. EVERTAUT Ltd. Jan. 23, 1959 [Feb. 1, 1958], No. 3379/58. Class 52(1) A shelf divider 1, for a metal shelf 2 having a front wall 3 and horizontal flange 4 to form a channel 5, has a vertical wall 6 and a horizontal base part 7 extended and bent down to provide a front wall 8 and flanges 9, 10 to embrace the walls 3, 4. Secured to and passing through wall 8 are a pair of spaced rubber pads 11 to frictionally retain the device against lateral movement. The device may be moved by raising it to fulcrum about the rear edge 4a of flange 4 to move the pads 11 away from wall 3. According to the Provisional Specification the rubber pads may be replaced by serrations engaging with co-operating serrations on the shelf edge.
Patent GB-572630-A (GB)
Title: Starting and regulating rheostat for small electric motors
IPC: H01C10/14
Filed: 1940-02-22
Abstract: 572,630. Motor controllers. SOC. ANON. VITOS. Feb. 22, 1940, No. 3380. Convention date, Feb. 22, 1939. [Class 38 (iii)] A regulating resistance particularly for small electric motors for sewing machines consists of a resistance element mounted on an insulator 12 and provided with tappings connected to spring blades 4 on the ends of which contact pieces 6 are mounted. Each contact piece comprises a button and pin the buttons being uppermost in all but the top one. When, as by foot operation the transverse arm 9 depresses the blades the first movement brings the top blade into contact with the second blade thereby completing the motor circuit and subsequent movement causes the blades mutually to actuate one another until the whole resistance is cut out. The blades may be replaced by pivoted arms controlled by springs and may be of insulating material.
Patent GB-824868-A (GB)
Title: Vertically adjustable tables, chairs, or other articles of furniture
Inventor: WRIGHT ERNEST ARTHUR
IPC: B60B33/06
Filed: 1957-01-31
Abstract: 824,868. Tables. KALAMAZOO Ltd. Jan. 20, 1958 [Jan. 31, 1957], No. 3386/57. Class 52(3) [Also in Group XXV] In an article of furniture of the kind in which a table top seat frame or other carrier adapted to support of articles or persons is vertically adjustable relative to a base, the article includes at least one vertical post 13 connected to the carrier and axially slidable in a base a catch piece 15 associated with the or each post, the or each catch piece being pivotally mounted on the base and having an aperture in which the associated post is engaged, resilient means 16 urging the or each catch piece in a direction to retain the associated post against axial movement in the base and manually operable means 17 for moving the catch piece or pieces in opposition to the resilient means the manually operable means being inoperative to move the or at least one catch piece to a post releasing position while the load upon the carrier exceeds a predetermined weight. As shown, the base comprises a body part 6 which is mounted upon three legs 7 and two posts 13 are provided. The manually operable means is a handle which is mounted on a rotatable shaft 18 which also carries a cam 19. The cam engages the centre part of a floating release member 20 the ends of which are disposed to engage the pair of catch pieces 15. A plunger 21 which is loaded by means of a spring 22 is slidably mounted at each end of the floating release member and these plungers engage the catch pieces so that when the load on the carrier exceeds the predetermined amount which is decided by the strength of the springs 22 the springs are compressed and the catch pieces are not released. In a modification the springs 22 can be omitted provided the release member is floating or pivoted so that it can apply unequal movements to the catch pieces. In such a construction when the load on the carrier exceeds the predetermined weight the release membr will be canted when the handle 17 is actuated to move the catch piece exerting the smaller locking force on its post without moving the catch piece exerting the larger locking force. The body part 6 is also provided with a vertically extending leg 9 having a foot 10 which can be moved into contact with the floor or other surface to restrain movement of the base. The foot 10, Fig. 1 (not shown), is spring loaded in a downward direction and can be raised or lowered by an angularly movable handle 11 located in an inclined slot 12 in the body part.
Patent GB-1381274-A (GB)
Title: Insulin derivatives
IPC: A61K38/00
Filed: 1971-01-28
Abstract: 1381274 Insulin derivatives NATIONAL RESEARCH DEVELOPMENT CORP 19 Jan 1972 [28 Jan 1971] 3388/71 Heading C2C Novel insulin derivatives in which at least one of the amino groups of the A 1  (glycine), B 1  (phenylalanine) and B 29  (lysine) amino acid units is converted to a blocked amino group having an N- substituent capable of forming an anion and in which at least one of the tyrosine hydroxyl groups is blocked by an O-substituent releasable in vivo to restore the free OH group are prepared, by N-acylating an insulin and then blocking the OH groups by conventional methods. Examples describe the preparation of O- acetylated, O-glutarylated and O-carbamylated A 1 ,B 1 ,B 29 -trisuccinylinsulin. Pharmaceutical compositions, for parenteral administration in treating diabetes, comprise the novel insulin derivatives and suitable excipients.
Patent GB-305176-A (GB)
Title: Improvements in relay systems for paralleling electrical circuits
IPC: H02J3/42
Filed: 1929-02-01
Abstract: 305,176. Associated Electrical Industries, Ltd., (formerly Metropolitan- Vickers Electrical Co., Ltd.), (Assignees of Thomas, P.). Feb. 1, 1928, [Convention date]. Synchronizing.-A relay for paralleling alternating current circuits responds to the equality of alternating voltages supplied to two reactors which are also energized by continuous currents proportional to the vector difference of the voltages of the circuits to be paralleled, means being provided for delaying the voltage variations across the alternating current winding of one of the reactors, so that the operation of the paralleling switch is' initiated prior to synchronism by a time interval proportional to the beat frequency between the line circuits to be paralleled, the closing of the switch occurring exactly at synchronism whatever the beat frequency may be. As shown, the reactors comprise transformers 12, 13 having continuous current windings 10, 11 fed through rectifiers 8, 9 and transformers 4 - - 7 with currents proportional to the voltages of the circuits 1, 2 which may be single-phase or polyphase. The transformers 12, 13 have also primary windings 14, 15 fed from any alternating current source 16 and secondary windings 21, 22 feeding rectifiers 23, 24. The transformer 12 is further provided with a lag winding 19 which delays the voltage variations in the alternating-current windings for a variable time interval after any continuous current variations. The currents from rectifiers 23, 24 are fed to opposed windings 25, 26 on the centre limb of a third transformer 27 and so long as the fluxes produced by these windings are unequal, the voltage of the secondary winding 29 will be reduced to such an extent that the continuous current obtained through the rectifier 31 will be insufficient to operate the relay 32 to close the paralleling switch 3. When the difference in these fluxes is a minimum, and therefore the beat frequency between the line circuits lowest, the paralleling switch is closed. Specification 299,318 is referred to.