baber/WOPTO huggingface dataset:
Patent GB-447748-A (GB)
Title: Improvements relating to sensitive photographic elements
IPC: G03C1/83
Filed: 1934-09-24
Abstract: Screening-layers for photographic sensitive material consist of a carrier and a dye containing an aldehyde group as substituent. Suitable dyes are the aldehyde substituted benzene- and naphthalene-azo-phenols and aldehyde substituted fluorescein dyes. Aldehyde substituted benzene-azo-resorcinol, benzene-azo-cresol, and Diamond Yellow G are suitable.  Examples are given of the preparation of: (1) 2-hydroxy-5-phenylazo-benzaldehyde by coupling benzene diazonium chloride with salicylaldehyde in caustic soda solution; (2) 2 : 4-dihydroxy-5-phenylazo-benzaldehyde by coupling benzene diazonium chloride with resorcylaldehyde and precipitating with sodium acetate; (3) 3-resorcylazo-benzaldehyde by coupling diazotized m - nitrobenzaldehyde with resorcinol; (4) 2-hydroxy-5-a -naphthylazo-benzaldehyde by coupling diazotized a  - naphthylamine with salicylaldehyde; (5) p:p<1> - diphenyl - disazophenol-salicylaldehyde by coupling diazotized benzidine with phenol and salicylaldehyde; (6) the disalicylaldehyde corresponding to (5); (7) the disulphonic acid derivative of (6) starting from benzidine disulphonic acid; and (8) 4 : 4<1>-diphenyl-disazo-salicylaldehyde-salicylic acid by coupling diazotized benzidine with salicylaldehyde and salicylic acid.  The dyes formed by coupling nitroso-dialkylanilines with hydroxy benzaldehydes may also be used.  The dyes are decoloured by an acid permanganate or quinone bromide bleach bath. Specifications 440,032, 444,198, and 447,092, [all in Group XX], are referred to.
Patent GB-503767-A (GB)
Title: Improvements in or relating to showcards and the like
IPC: G09F1/08
Filed: 1937-10-08
Abstract: 503,767. Collapsable showcards. HANCOCK, CORFIELD, & WALLER, Ltd. and GILES, F. K. Oct. 8, 1937, No. 27432. [Class 3 (ii)] A collapsable showcard simulating a three - dimensional object or article comprises a blank which may be cut and/or scored and which is provided on its rear face with one or more pairs of flaps with which are associated one or more resilient members so arranged that when pressure such as results from packing is released from the face of the card; the resilient member or members will draw the flaps towards each other and will cause the blank to assume automatically an erected condition, collapse of the erected blank being effected thereafter by applying pressure to its face. The resilient member may comprise a rubber band or a coil spring. In the embodiment shown in Fig. 1, 2, the showcard comprises a blank 10 provided with flaps 11, 12 drawn towards one another by an elastic band 14, the blank being shaped to represent a can, bottle or similar object The showcard is supported by a strut 15. Alternatively, the showeard may be hingedly mounted on a support formed with a strut. In another embodiment, Fig. 4, a blank 23 hingedly mounted on a support 25, is scored and cut to form a top part F with separate hinged parts G, H provided with flaps 26 secured together by an elastic band 28, so as to simulate a cube.
Patent GB-494706-A (GB)
Title: Stand or holder for a preserve dish or jar or like container for table use
IPC: A47G19/30
Filed: 1937-10-09
Abstract: 494,706. Table stand or holder for jars, dishes, &c. JEFFAY, L. S. Oct. 9, 1937, Nos. 27457 and 31073. [Class 66] [Also in Group XIV] A stand for a preserve dish or jar, butter dish, sugar or biscuit jar has a pivoted handle d with an attached cam f, which, when the handle is swung downwards, acts on the pivoted lid e to raise it. The supports b may be made extensible by being slotted, the handle cam and lid being on a channel shaped extension piece which is clamped to the support b by a nut and bolt.
Patent GB-729067-A (GB)
Title: Improvements in or relating to means for detecting and indicating the activities of bees and conditions in beehives
IPC: A01K55/00
Filed: 1952-10-31
Abstract: 729,067. Measuring sound intensity in beehives. WOODS, E. F. Sept. 25, 1953 [Oct. 31, 1952], No. 27471/52. Drawings to Specification. Class 118 (2). Apparatus for detecting and indicating the activities of bees and conditions in beehives by analysis of the sounds produced by the bees, comprises a microphone adapted to be positioned within a hive, an amplifier connected to the output of the microphone, an indicating device connected to the output of the amplifier and frequency-discriminating means for selectively isolating the three sounds known as normal hum, hiss and warble. The embodiment described utilizes a crystal microphone of suitable size and shape to be inserted in the hive without being interfered with by the bees. This is connected to an amplifier comprising five resistance-capacity coupled pentodes, the last one of which has a meter in its anode circuit to indicate the sound level picked up' by the microphone. Three possible paths are provided between the second and third valves, any one of which may be selected by means of two ganged switches. The first path is a direct connection for detection of normal hum, about 180-190 c/s.; the second path includes a series condenser to eliminate lower frequencies and detect " hiss " of 3000 c/s. and upwards; and the third path comprises a band-pass filter network to select the " warble " which is a frequency of about 255 c/s. wavering plus or minus 35 c/s. When the selector switch is moved to the " hiss " position the gain is automatically increased. Interpretations of various combinations of these sounds are given. Instead of a meter, the indicating device may be a lamp lit by a relay in the anode circuit of the fixed valve. Transistors may be used in place of the pentode valves.
Patent GB-1546829-A (GB)
Title: Liquid fine washing agent
IPC: D06M13/463
Filed: 1976-07-01
Abstract: Disclosed is a liquid fine washing agent, which, in addition to good washing properties, has an excellent fiber-caring effect and, in particular, bestows a soft feel to textiles treated therewith. The washing agent achieving these objectives contains about 7 to 40% by weight of at least one nonionic surface-active agent, especially at least one C10-C20-alkylpolyglycol ether and/or C6-C20-alkylphenolpolyglycol ether; about 3 to 15% by weight of at least one C8-C20 fatty acid polyglycol diester; and about 1 to 7% by weight of a quaternary ammonium compound with textile-softening properties, especially a di-C10-C22-alkyldimethyl or - ethylammonium halide.
Patent GB-899592-A (GB)
Title: Improvements in or relating to pelmets
Inventor: ELLARD WILLIAM GEORGE
IPC: A47H1/14
Filed: 1959-08-12
Abstract: 899,592. Pelmets. ELLARD SLIDING DOOR GEARS Ltd. Aug. 11, 1960 [Aug. 12, 1959], No. 27614/59. Class 52(5) A sheet metal pelmet 6 is clipped on end members 1 secured to a support and each consisting of a sheet metal plate with bent-up flanges 2, 3, 4, the upturned edge 9 receiving the lower edge of the flange 3 and a tongue 10 being sprung into a gap 11. A rail 12 for runners is secured by a bolt or screw through an aperture 5 which may be co-incident with a mounting aperture in the flange 4, and the ends of the edge 9 and tongue 10 may be cut away or relieved to accommodate the thickness of the end member 1 to allow flush fitting. The end members may be of a shape other than rectangular and in the form shown in Fig. 5 the upturned edge 9 is unnecessary.
Patent GB-655103-A (GB)
Title: Improvements in and relating to self-closing hinges
IPC: E05D11/10
Filed: 1948-10-25
Abstract: 655,103. Hinges. BRITISH THOMSONHOUSTON CO., Ltd. Oct. 25, 1948, No. 27698. Convention date, Oct. 28, 1947. [Class 65(ii)] A hinge for a cabinet door comprises a pair of leaves 22, 28, secured to the door and the cabinet respectively, and a pintle 27 the axis of which is adjacent the outer face of the door. The leaf 28 has an extension 31 carrying a flat spring 37 which is engaged by a roller 46 carried by the arm 44 on the leaf 22 and is so arranged that the spring at first opposes and then assists the opening movement of the door, the roller disengaging from the spring after a ceertain degree of opening movement which may be continued through 180 degrees. The extension 31 on the leaf 28 lies at right-angles thereto and extends along the down-turned edge 12 of the cabinet. It is secured to the cabinet by bolts 33 and has a strengthening rib 32 and a stepped portion 38 to which the spring 37 is secured by rivets 39. The face of the spring 37 on either side of the bend 43 engages with the roller 46 to control the movement of the door.
Patent GB-265294-A (GB)
Title: Improvements in and relating to mercurial printing surfaces
IPC: B41C1/16
Filed: 1925-11-05
Abstract: 265,294. Trist, A. R. Nov. 5, 1925. Printing-surfaces. - A planographic printing- plate having ink-retaining areas and mercurial ink-repelling areas comprises an electrodeposited lay a of copper or other metal with which mercury can amalgamate, and an electrodeposited layer b of nickel or other metal, unaffected by mercury, to which printing ink will adhere, and provided with recesses exposing the layer a and filled with a number of films e - - i of two metals electrodeposited alternately, one of these materials, e.g. copper, forming a hard amalgam with mercury and the other e.g. silver or gold taking a high polish when treated with mercury, a film of this metal being outermost, and the surface of the plane being treated with mercury to produce the ink-repelling areas. In the production of such a plate, a base 3 of iron is provided electrolytically with a layer a of copper of about one or one and a half thousandths of an inch in thickness and a layer b of nickel of about the same thickness is deposited upon the copper. The ink-retaining areas of the plate are protected with an acid resist c and the plate etched to form recesses extending completely through the plate b and into the plate a to a depth of about one ten-thousandth part of an inch. A film e of copper, gold, or silver is deposited electrolytically on the bottoms of the recesses and further films alternatively of copper and gold or silver are deposited to fill the recesses. The ridges k formed at the edges of the films are removed by abrasion and the plate treated with mercury. The resist c may be removed or allowed to remain. Specification 225,928 is referred to.
Patent GB-1323974-A (GB)
Title: Pulse transmission
IPC: H03K5/01
Filed: 1971-06-14
Abstract: 1323974 Pulse shaping; equalizers; data transmission TELEFONAKTIEBOLAGET L M ERICSSON 14 June 1971 [12 June 1970] 27833/71 Headings H3P H4P and H4R Pulse signals, before transmission through a channel of limited bandwidth have an overshoot added to them and at the receiving terminal a correcting signal is derived from the overshoot by a differentiating delaying and cancellation process and this is added to the received pulse after its overshoot has been removed. As described, the pulse, before transmission is passed through a sharp cut-off filter F1 to produce the overshoot. At the receiving terminal the overshoot is removed by a filter F2 and the resulting pulse is delayed at D3 to compensate for delays in the correcting circuits, reversed in phase at P2 and applied to an adder A2. The received pulse in also differentiated at M1 to produce the oscillatory signal 2a at the leading flank and a similar signal at the trailing flank. Each oscillatory signal is delayed by half a cycle to produce the dotted wave of 2a and the two are added at A1 to produce 2b. This is differentiated at M2 (curve 2c) and added to the overshoot removed signal at A2, via a delay circuit D2, to steepen the pulse flanks. The differentiated signal 2c is also applied to a phase reverser P1 and the delay D2 whereby waves 3 and 4 (Fig. 2d) are produced. The negative going portions are removed in top and bottom clippers C 1  and C 2  and the clipped waves are applied to a circuit E 1  which passes the shaded area to a filter F 3 . A corresponding circuit C 3 - F 4  in which the positive going portions are removed produces an output from filter F 4  during the negative going flanks of the wave. The outputs of F 3  and F 4  are added to the overshootremoved wave at A 2  to further steepen the pulse flanks (Figs. 3d, 3e and 3t, not shown).
Patent GB-1346195-A (GB)
Title: Liquid fuel injection pumping apparatus
IPC: F02M59/44
Filed: 1971-06-15
Abstract: 1346195 Fuel injection pumps BRYCE BERGER Ltd 15 June 1971 [23 June 1970] 27924/71 Heading F1A A fuel injection pump having an axially adjustable rack bar 5 controlling the delivery is provided with a maximum fuel stop in the form of a pointed rod 4 extending transversely into the path of an inclined surface 18 on the bar 5. The thickness of a stack of washers determines the axial position of the rod and thus the stop position of the rack bar. When starting, the rod 4 is retracted against the action of a spring 9, whereby the rod engages a shoulder 19 to provide excess fuel. After start up the rack is moved in a delivery decreasing direction by a governor and the rod is automatically moved by the spring 9 to its original position in which it subsequently controls maximum fuel delivery.
Patent GB-679971-A (GB)
Title: Improvements in or relating to electric heat accumulating stoves and the like
Inventor: BAKER JAMES REUBEN JOHN
Filed: 1949-11-01
Abstract: 679,971. Electrically heated heat-storage blocks. ELLIOTT, S. R. Dec. 7, 1950 [Nov. 1, 1949], No. 27934/49. Class 39(iii) An electric heat accumulating block 1 for a stove or forming a hot-plate has a flat upper surface 2 with electric heaters 4 in recesses 3 in its base, and further vertical and horizontal communicating passages 7-9 in the block allow circulation of air heated in the recesses. The block has inwardly or outwardly tapering sides and is mounted on supports 14 with pointed, spherical or knife-edge top parts or on porcelain feet. The electric heaters comprise spiral sheathed elements 5 supported on metal plates 12 secured on the base of the block. The ends of the air passages are covered with wire mesh 10 to prevent entry of the porous mineral wool lagging 18 in which the block 1 is supported in a casing 16, which may have a lagged hinged lid. The block may be placed beneath or at the side of an oven.
Patent GB-655514-A (GB)
Title: Electrolytic process for the surface treatment of aluminium or aluminium alloys
IPC: C25F3/20
Filed: 1948-10-28
Abstract: 655,514. Electrolytic polishing of aluminium or aluminium alloys. PROGONIKER, L. Oct. 28, 1948, No. 28041. [Class 41] The metal surface is submitted to electrolytic action with alternating current in a bath consisting mainly of an alkali-metal cyanide. The bath may also contain a retardant such as sodium sulpho-cyanide or sodium sulphate and may also have a small proportion of an organic colloid for example gelatine or casein. If the surface is required for the reception of dyes it may be subjected to anodic oxidation after the polishing treatment. According to the Provisional Specification at temperatures below 50‹ C. the process of the invention results in oxidation of the aluminium or its alloys.
Patent GB-890551-A (GB)
Title: Production of dialkylnaphthalenes
IPC: C07C15/24
Filed: 1960-08-12
Abstract: Dialkylnaphthalenes having molecular weights in the range 400-480 are obtained by (a) dimerising a propylene polymer in the presence or a protonating catalyst to obtain a highly branched C18 olefin, (b) reacting this with naphthalene and recycled monoalkylnaphthalene in the presence of a protonating catalyst, (c) recovering from the mixture a product dialkylnaphthalene having the desired molecular weight, unreacted feedstock and monoalkylnaphthalene fraction which is recycled.  The propylene polymer is a "nonene" (C6-C12) fraction obtained as by-product in polymerizing propylene and containing more than 40% by volume of C9.  This is dimerised in the presence of AlCl3, H2SO4, BF3, BF3.H2O or HF to give a product having a molecular weight in the range 230-270.  1-3 mols of dimer per mol of naphthalene are used, preferably with 2%-10% by weight of AlCl3 based on dimer and HCl promoter at 25 DEG C.-60 DEG C.
Patent GB-1014815-A (GB)
Title: Drainage cleanout devices
Inventor: LEROU ROGER J
IPC: E03F5/02
Filed: 1962-07-20
Abstract: 1,014,815. Inspection panels. JOSAM PRODUCTS Ltd. July 20, 1962, No. 28106/62. Headings E1C and E1G. [Also in Division F2] A drainage cleanout device comprises a hollow body 10, having a flange 13 situated on its inside wall adjacent the circular rim 11 with two lugs 14, 15 on the flange, a rubber washer 23 and a plug 16 having a flange 17 adapted to rest on the flange 13, with the body of the plug containing slots 20 adapted to co-operate with the lugs 14, 15 in a bayonet fashion to lock and release the plug. The ring 23 rests between the two flanges or, in a modification (Fig. 3), is retained in a space between the lower flange 13 and the chamfered edge of the plug flange. In a further modification (Fig. 5, not shown) the plug has lugs engaging in slots cut in the flange situated on the inner wall of the hollow body.
Patent GB-507661-A (GB)
Title: Concentration of ores and other minerals by the sink and float process
IPC: B03B13/00
Filed: 1937-10-15
Abstract: 507,661. Wet-separating. PEARSON, A. Oct. 15, 1937, No. 28109. [Class 82 (ii)] In the " sink and float" process for concentrating minerals by the use of a substantially stable heavy suspension, the tendency of the viscosity of the suspension to increase during the process is controlled during the course of the process by adjusting the relative proportions of fine and coarse particles in the dispersed phase whilst keeping the specific gravity of the suspension'substantially constant, the adjustment being effected by removing a part of that portion of the dispersed phase the particle size of which is intermediate' that approaching brownian size and that which settles rapidly, and replacing it by a suitable amount of the dispersed phase of larger particle size. The initial suspension may be prepared by adding to a stable suspension in a liquid of finely levigated galena or other heavy substance which contains a relatively large proportion of particles approaching brownian size, the same substance of coarser grain size, until the desired specific gravity is attained. In the process indicated in the figure, galena concentrates at A are passed to a classifier B, preferably of the rake type, oversize particles from which are reduced in a ball mill C and returned to it. The overflow from the classifier is dewatered and made up into a suspension at E, from which the suspension passed to the vessel F where the sink-andfloat process is carried out. During the process the viscosity of the suspension increases due to attrition and the entrainment of fine particles of foreign matter of low specific gravity. A portion G1 of the medium is therefore withdrawn and subjected at H to a treatment which removes a portion I of the dispersed phase, the particle size of which is less than that at which rapid settlement takes place, but greater than that approaching brownian size, that is generally between 800 and 2000 B.S.I. mesh. The removal may be effected by gravity separation in a hydraulic or rake type classifier, or by froth flotation if fine particles of foreign matter have been entrained. The remaining solid galena concentrate HI thus obtained is returned to the classifier B, which is meanwhile operated to produce the necessary amount of larger size particles to restore the original size ratio in the suspension to be prepared at E so that this may have the same viscosity and specific gravity as the original suspension.
Patent GB-189752-A (GB)
Title: Improvements in apparatus for cleaning ships' bottoms
IPC: B63B59/08
Filed: 1922-10-16
Abstract: 189,752. Overall, J. Dec. 3, 1921, [Convention date]. Hulls, cleaning. -- Ship's bottoms are cleaned by a scraper 15, Figs. 1 and 8, comprising four members shackled together and carrying blades 42, Fig. 8, secured to a wooge - shaped frame 43. Runners 45 facilitate the passage of the device over the hull and brushes 47 remove material loosened bv the scrapers. The scraper is clamped at 16 to a rope 14 the ends of which after passing round fair leads carried by adjustable athwart-ship booms 20 at bow and stern, are wound round drums 23, Fig. 4, mounted on a plate 26 working in horizontal guides 27 formed in a rocker-arm 28 carried by a bed plate 30. This machinery, together with an engine connected by the link 32 with the rocker arm, is carried by a barge floated alongside the ship. The scraper is locally reciprocated by the action of the connecting rod 32 and rocker arm 28 on the ropes 14. The device is shifted fore-and-aft by moving a grooved disc 35, driven from a suitable source of power, into contact with one or the other of the discs 36 backing the drums 23. A vertical adjustment is secured by operating vertical ropes carrying guide blocks through which the ropes 14 are rove. The concave portions of the hull at the bow and stern are cleaned by a separate overhead suspended member upon which is mounted a scraper or brush.
Patent GB-298082-A (GB)
Title: Improvements in luminous letters
IPC: G09F13/04
Filed: 1928-10-01
Abstract: 298,082. Grunhut, F. Sept. 30, 1927, [Convention date]. Signs; letters. - A luminous sign letter is made of a single piece of translucent material or fabric having the exact shape of the letter and formed as a hollow body having two lateral limbs a. b and a connecting yoke c. The letter is mounted on a correspondingly shaped base d having upturned sides 6 engaging the limbs a. b. The Specification as open to inspection under Sect. 91 (3) (a) describes also a base plate having openings through which lamps can be introduced from the back. This subject-matter does not appear in the Specification as accepted.
Patent GB-422177-A (GB)
Title: Improvements in non-suspended milking machines
IPC: A01J5/04
Filed: 1934-10-02
Abstract: 422,177. Cow - milkers. AKTIEBOLAGET MANUS, Norrk÷ping, Sweden. Oct. 2, 1934, No. 28198. Convention date, Oct. 24, 1933. [Class 84] [See also Group XXIX] In a non-suspended milking-machine, the milk receptacle 15 is connected to the teat cups 17 by a suction or milk hose 16 leading from a nipple 22 on the lid 20 of the receptacle 15 to a nipple 3 on a claw 1, the nipple 3 leading to a main passage 2 from which branch passages 4 run to four nipples 5 to which are attached tubes 18, leading to the teat cups 17, the claw 1 having a cock 9 by which the main conduit 16 can be shut off in the vicinity of the teat cups. To retain the plug 9 of the cock in position a washer 10 is held in position thereon by a spring 11 and is located beneath a stop 12. The washer 10 has a recess 13 and the plug 9 a recess 14 which can be aligned with stop 12 when the plug is to be removed. The nipples 5 are inclined and the pair of tubes 18 nearer the hose 16 are longer than the other pair so that the nipples 5 will occupy a vertical position when the claw is inclined owing to the weight of hose 16. The claw 1 has a pair of passages 6 each with a nipple 7 to which tubes 19 leading to the pulsator are attached, and with a pair of nipples 8 to which pulsation tubes 21 leading to the teat cups 17 are secured.
Patent GB-709489-A (GB)
Title: Improvements connected with refrigerator cabinets
Inventor: WALLEY GERALD GAUNT
IPC: F25D23/06
Filed: 1951-12-03
Abstract: 709,489. Sectional cabinets. HUSSMANN BRITISH REFRIGERATION, Ltd. Dec. 1, 1952 [Dec. 3, 1951], No. 28242/51. Class 52(1) [Also in Group XIII] A sectional unit structure for refrigerator cabinets comprises a base 4 and front and rear walls 5, 6 interconnected at each end by a frame 8 of angle cross-section so that a number of units can be connected in line and completed by end closures 13. As shown applied to an open-topped display case the frames 8 also support the upper parts 5a, 6a of the case. The base, front and back are secured to the frames 8 by screws passing through holes 10 and the adjacent units or end closures are secured by bolts passing through holes 11. The back-or front may include doors 7.