baber/WOPTO huggingface dataset:
Patent GB-751253-A (GB)
Title: Improvements in or relating to the preparation of printing plates
IPC: B41D1/00
Filed: 1954-03-18
Abstract: 751,253. Printing surfaces. BECH, J. March 18, 1954, No. 7905/54. Class 100 (2). [Also in Group XXIII] A method of preparing stereotype or other printing plates by placing the printing plate with its printing face on a porous underlayer arranged over grooves in a table connected to a vacuum generator and working the rear side of the printing plate with a milling or grinding tool, is characterized by masking-off portions of the grooves outside the printing plate. The table 1 has a suction pipe 2 communicating with a number of grooves 3 intersecting each other throughout the entire table top and all ending a short distance within the edges of the table. The underlayer 4 consists of porous material, e.g. paper. The area of the underlayer and of the portions of the grooves 3 lying outside the printing plate 5 is covered by a mask 7 made of a relatively dense material having such strength that it can resist the vacuum effect, e.g. the mask may be of strong stout paper, rubber or the like. It is provided with an aperture slightly smaller in area than the printing plate so that the edges 8 of the aperture will be bent upwardly along the edges of the printing plate. A device may be provided for shutting-off portions of the table top grooves from the remainder thereof, comprising a rectangular frame having such a wall thickness and wall height that it can be inserted within a predetermined number of grooves 3 with its upper edge level with the table top, thus isolating an area such as 10. The areas may be connected to the vacuum generator by separate pipe connections. The table top may be curved or plane. The underlayer may have a porous portion corresponding in size exactly to the area of the printing plate, the remainder of the underlayer being made of dense material and serving as a mask, the separate mask being dispensed with.
Patent GB-1085848-A (GB)
Title: Dyes containing trimellithamide groups
Inventor: SCHEFCZIK ERNST
IPC: C09B1/42
Filed: 1965-02-24
Abstract: The invention comprises dyes of the formula <FORM:1085848/C4-C5/1> where A is an anthraquinone radical free from sulphonic acid groups, G is hydrogen or alkyl of 1-4 carbon atoms, X is hydrogen, methyl or an aromatic or heterocyclic radical, p is 1-4, the radicals X being identical or different when p is greater than 1.  The compounds are prepared by reacting an anthraquinone dye containing at least one acylatable amino group, but free from sulphonic acid groups with a compound of the formula <FORM:1085848/C4-C5/2> where Hal is Cl or Br, any unreacted amino groups being acylated with other aromatic acid halides.ALSO:Compounds of the formula <FORM:1085848/C2/1> where hal is Cl or Br and X is H, CH3, phenyl, p-chlorophenyl, p-bromophenyl, p-nitrophenyl-phenylazophenyl, p-nitrophenylazophenyl or <FORM:1085848/C2/2> are used to prepare dyes (see Division C4).  Some of these compounds are stated to be novel.  They are obtained from trimellithamides by reaction with thionyl chloride, thionyl bromide or phosgene.
Patent GB-1092518-A (GB)
Title: Improvements in and relating to check-weighing apparatus
Inventor: WALKER ALAN BROUGH
IPC: B07C5/20
Filed: 1964-02-26
Abstract: 1,092,518. Weighing apparatus. TUDOR FOOD PRODUCTS Ltd. and A. B. Walker. Feb. 18, 1965 [Feb. 26, 1964], No. 7975/64. Heading G1W. In a check weigher in which articles are fed one-by-one to a weigh-pan 10 mounted on one end of a weigh-beam 6 which deflects to electrically connect a contact or contact assembly 19, 20 with either of two fixed contacts 22, 23 according as to whether the article in the pan is underweight or of at least a prescribed weight, a control circuit associated with the contacts is provided to so actuate air compressors that the article being weighed is blown off the pan in one of two perpendicular directions according to its weight. The weigh beam 6 which is pivotally mounted on a support 5 is provided with an adjustable weight holder 11 and a magnetic portion 13 arranged so that it is attracted by a magnet 15 to close the contacts 20, 23 only when an article of less than the prescribed weight is supported on the pan 10. The pan 10 which comprises a sloping wall portion 9 adjoining a ledge portion 10 when loaded with an article of at least the prescribed weight tilts the beam to close the contacts 19, 22, dampers 33, 34 being provided to prevent undue deflection of the beam 6. An air nozzle 41 directed along the ledge portion 10 and air nozzles (43-45) Fig. 3 (not shown) directed down the sloping wall portion 9 and across the ledge portion 10 are connected to the air compressors which are actuated by the electric circuit associated with the contacts. A photo-electric cell 48 is connected in the circuit and arranged so that the interruption of a light beam to the cell 48 by a succeeding article initiates the actuation of one or both the air compressors to blow the article being-check-weighed off the pan in one of the two perpendicular directions.
Patent GB-597097-A (GB)
Title: Change speed device for bicycles and other similar vehicles
IPC: B62M9/124
Filed: 1945-03-29
Abstract: 597,097. Change-speed chain-gear. RAS, J. J. M. P. March 29, 1945, Nos. 7979 and 7980. Convention dates, Jan. 20, 1943, and Nov. 9, 1943. [Class 80(ii)] In a cycle change-speed gear, a chainshift sprocket 5, freely mounted between cheeks 8 on a spindle 7 slidable in a support arm 4, is connected to the arm by a bentover plate spring 13, which acts as a guide and as the return-spring for the cable 9, 11; by means of which the sprocket and spindle are actuated to shift the chain from one sprocket 24<SP>1</SP>, 24<SP>2</SP> &c. to another on the rear hub of the cycle. The spindle 7 slides in lubricated bushings in the arm 4, and a nut 21 limits its inward movement. The support-arm 4 swings on a bracket 1 secured to the cycle-frame only by the nut of the rear-hub spindle, and the arm is loaded by a chain-tension spring 8.
Patent GB-855787-A (GB)
Title: Electrically conductive conveyor bands
Inventor: LAWSON NEIL
IPC: H01B1/24
Filed: 1957-03-11
Abstract: 855,787. Conveyer belts. FENNER & CO. Ltd., J. H. March 11, 1958 [March 11, 1957], No. 7997/57. Class 78 (1). In a conveyer belt of the kind comprising a fabric base and an outer layer of rubber or plastic, e.g. polyvinyl chloride, some of the threads of the fabric, prior to weaving, are given a surface application of a solid,- non- hygroscopic, electrically-conductive material, e.g. graphite, to render the belt electricallyconductive and thereby prevent it from accumulating static electricity. The application is preferably continuous along any particular thread and the proportion of treated thread used in the fabric is about 3% by weight. To ensure wide distribution of the treated threads it is suggested that one ply out of twelve plies of the weft and in addition one out of six of the surface warp threads be so treated. In addition, binder yarns may also be so treated and placed in the belt at a pitch of five inches. The coating may also be impregnated with a relatively small amount of carbon black.
Patent GB-286889-A (GB)
Title: Improvements in machines for milling or grinding metals and other substances
IPC: B23Q16/06
Filed: 1927-03-23
Abstract: 286,889. Liebert, H., and Holroyd & Co., Ltd., J. March 23, 1927. Milling.-In a milling or grinding machine of the kind wherein a work-table having a pair of work-holding surfaces can be automatically traversed along a base which is power-indexed through 180‹ at the end of each traverse, the base is automatically locked by a withdrawable locking- bolt actuated by trip-lever mechanism which also controls the mechanism for rotating the base. The base is rotated by means of worm gearing 7 driven from a control shaft 19 through worm gearing 20, friction clutch 23 and sliding clawcoupling 24. The reciprocation of the table is also effected from the shaft 19 through gearing 30, shaft 29, worm gearing 33, sliding shaft 26 carrying a claw coupling 27, shaft 14, gearing 12, worm 10 and rack 9. The shaft 14 has coupling teeth at either end adapted to coact with the coupling 27. The couplings 24, 27 are selectively actuated by forks carried by a. rock-shaft 34, actuated by a spring-loaded trip-lever 37 which is controlled by an arm 38 pivoted on the shaft 34 and operated by one of two dogs 39, 40 at the end of each operative traverse of the table. In operation, a set of blanks is mounted in a jig on one side of the table 6 and during operation on these blanks another set can be mounted on the other side of the table. The movement of the lever 37 at the end of the run actuates another lever 47 to withdraw the base locking-bolt 51, this bolt being adapted to engage two diametrally opposed notches in the base. At the same time the clutch 24 is engaged and the base rotated through 180‹, whereupon a finger 43 on the base actuates a lever 41 to return the arm 38 and trip-lever 37. This movement causes the disengagement of the base drive and engagement of the table drive for an operative traverse in the opposite direction. The arrangement whereby the shaft 14 is driven alternately from opposite ends causes the reversal of the table movement after each movement of the base without reversing the shaft 26.
Patent GB-655885-A (GB)
Title: Improvements in devices for breaking-up foam
Inventor: ROBERT-MAURICE MERCIER
IPC: B01D19/02
Filed: 1948-03-17
Abstract: 655,885. Centrifugal pumps. MERCIER, R. M. March 17, 1948, Nos. 8021 and 8022. Convention dates, March 17, 1947, and Dec. 17, 1947. [Class 110(i)] [Also in Group II] A foam disintegrator comprises pumps 47, 49 in series. The pump 47 is surrounded by foam, and the pump 49 has an inlet dipping into liquid below the foam. The inlet comprises a tubular extension 51 rotating with the pumps and fitted with a check-valve 52. Liquid raised by the pump 49 combines with liquid separated from the foam by the pump 47 and is thrown out in a radially extending sheet by the pump 47.
Patent GB-826936-A (GB)
Title: Improvements in and relating to seals for fluid pressure apparatus
Inventor: VARGA OTTO HERMAN
IPC: F16K41/08
Filed: 1955-03-21
Abstract: 826,936. Stuffing-box substitutes; pistons. SEETRU Ltd. March 12, 1956 [March 21, 1955], No. 8100/55. Classes 122 (1) and 122 (5). [Also in Group XXIX] An "O" " or D-sectioned resilient sealing ring 2 for valves has a single peripherally continuous flexible lip 1 projecting in the upstream direction for engagement with the base 9 of its locating groove 3, which may be provided with drain-holes 10, 11. The lip may be in the form of a truncated cone or a thin flash adjoining the base of the D-section. The groove 3 may be of a width sufficient for the D-section with an undercut to accommodate the lip, or it may be wide enough to accommodate the ring and lip. The interior surface of the lip may be conical or cylindrical; if cylindrical, the bottom of the groove is made conical. Sealing between lip and groove may be ensured further by a garter spring which may engage a groove on the free side of the lip; according to the Provisional Specification an " O "-ring may be used in addition to the lipped ring, located in a separate groove.
Patent GB-388224-A (GB)
Title: Improvements in soap holders
IPC: A47K5/05
Filed: 1932-03-18
Abstract: 388,224. Soap-holders ; brackets. HENRY, H. D., 22, Grosvenor Road, Chiswick, London. March 18, 1932, No. 8103. [Classes 52 (v) and 131.] A soap-holder A is provided with rigid spikes B, whereby the soap is prevented from moving, and has secured thereto a suction cup or cups C whereby it may be firmly retained in position on a supporting surface. The use of rigid spikes allows a large air space to be provided beneath the soap. The holder may be formed of metal or of vulcanite or the like, and may be provided with a channel or gutter around its outer edge. The holder and cup may be secured together by a rivet head or button D formed on the cup and adapted to be forced through a hole in the bottom of the holder ; alternatively, they may be secured together by a bolt and nut, or by vulcanizing ; or the spikes may be vulcanized directly into the suction cup. In a modification for use in supporting the soap from a vertical surface, the holder is secured to the horizontal arm of a bracket the vertical arm of which is provided with a suction cup.
Patent GB-851087-A (GB)
Title: Steering column of variable length, preferably for agricultural motor vehicles
Inventor: WEHSELY KARL
IPC: B62D1/18
Filed: 1958-03-13
Abstract: 851,087. Steering and controlling vehicles. INSTITUT FUR LANDMASCHINEN-UND TRAKTORENBAU. March 13, 1958, No. 8111/58. Class 79(5). In a steering column 1 Fig. 1 adapted for flanged attachment to a gear-box 2 with alternative intermediate flanged spacers 47 Fig. 4 providing an adjustable length of column, the steering shaft 6, gear change shaft 29 and brake and clutch operating rods 20, 26 are slidable telescopically in sleeves 8, 31 on guide bearings 22, 23 &c. to permit all the controls to be raised or lowered with the column 1. 'The column 1 is further adapted for a reversal in direction of travel by the provision of supports 42 for the seats 43 in two positions, and the provision of reversing shafts 4, 4<SP>1</SP> with pinions 3 for alternative attachment of the steering wheel 5. The steering shaft 6 extends telescopically within a steering worm sleeve 8 and is rotatably connected therewith through a profiled bush 7. The steering knuckle shaft 11 may carry cam members 12 in addition to the steering arm 13 and adapted to assist the steering by operation of the brakes 17 through rollers 14 on the brake operating levers 15. The gear change shaft 29 is slidable for adjustment within a sleeve 31 operating the gear shaft dog 32 and clamped to the shaft 29 through a clamping sleeve 30. The brake lever 15 and clutch rod 28 are operated through the push rods 20, 26 which are actuated by arms 38 Fig. 7 on pedal operated shafts 24, 27 and engageable with grooved sleeves 40 clamped to the push rods 20, 26. Provision is made for attachment of pedals 25 Figs. 8, 11 on the shafts 24, 27 according to the direction of driving. A pedal 25 may be alternatively rigidly keyed to a shaft 24 on one side or freely mounted on the shaft 27 on the other side and connected to operate the shaft 24 through linkages 45, 46.
Patent GB-418058-A (GB)
Title: Improvements in or relating to insoles or socks for footwear
IPC: A43B17/02
Filed: 1934-07-12
Abstract: 418,058. Insoles or socks for boots &c. SCOTTON, J. C., Hadley, Monks Avenue, New Barnet, Hertfordshire. July 12, 1934, No. 8115. [Class 17 (ii).] A pad 4 of soft resilient material, such as sponge rubber, is inserted in corresponding holes cut in that outer layer 1 of an insole or sock which is to contact with the foot and in an intermediate layer 2 of resilient material such as soft felt or rubber. The layers 1 are of flexible but inelastic material, such as leather, and the upper face of the pad 4 may be covered with a layer of soft material 5, such as roan, the edges of which are secured between the layer 2 and upper outer layer 1. The layer 5 may be perforated for ventilation.
Patent GB-574843-A (GB)
Title: Improvements in or relating to abrasive materials
IPC: C09K3/14
Filed: 1943-05-21
Abstract: Abrasive grain comprising a solid solution of a -alumina and chromium sesquioxide or vanadium sesquioxide, or both, may be bonded with glue, resin, ceramic or vitrified material.  The starting materials may comprise ores such as chromite with high Al2O3 content, pure metal or alloy such as chromium and its alloys which oxidize to Cr2O3 during the fusion, or a compound which forms either of the constituents during the fusion such as V2O5.
Patent GB-910770-A (GB)
Title: Improvements in gramophone sleeves players and like flat containers
Inventor: DAY CLAUDE ERNEST
IPC: B65D85/57
Filed: 1960-03-08
Abstract: 910,770. Envelopes. DAY & CO. Ltd., ERNEST J. March 8, 1961 [March 8, 1960], No. 8157/60. Class 146 (2). A gramophone record sleeve or like flat container incorporating an envelope composed of a sheet of stiff paper or board which is folded over upon itself to form front and back panels for the envelope 3, 2, one having outer margins 3a which fold into edge-to-edge abutting relationship with the narrower other panel 2. The margins 3a and narrower panel are secured together by a separate back cover sheet 4 which overlays the whole area, Fig. 4, with a margin folded around the fold line 1. A further sheet 5 may be secured overall by three narrow margins 5a, 5c.
Patent GB-832048-A (GB)
Title: Balancing device for rotating bodies
Inventor: HARTIG JOSEF
IPC: F16F15/36
Filed: 1958-03-14
Abstract: 832,048. Balancing rotors. SCHAFER, G., and SCHAFER, O., [trading as KUGELFISCHER G. SCHAFER & CO.]. March 14, 1958, No. 8197/58. Class 80 (2). [Also in Groups XIII and XXXIV] An automatic balancing device for rotors such as the container of laundry spin driers, or vehicle wheels, comprises two or more rolling bodies 6, Figs. 1 and 2, freely rolling with clearance between concentric races 1, 2 coaxial with the axis of the rotor. The races 1, 2 are secured together by annular cover members 3, 4 one of which 3 is shown as integral with the races. The space between the races may be filled with a dampening fluid 5 such as oil or ethylene glycol. In cases where it is desired to restrict the action of the device at low speeds the dampening medium 5 may be solid at such speeds and only melt at temperature depending upon a predetermined speed. The rolling bodies may have a specific gravity greater than or less than that of the dampening medium, and tend to roll towards the side remote from the unbalance occurring or towards the unbalance respectively. The dampening action may alternatively be effected by a system of magnets acting on the rolling bodies. Fig. 11 shows a balancing device 19 applied to the upper edge of a rotary drum 21 of a laundry spin drier. Fig. 12 shows a balancing device 19 applied to the rim 22 of a vehicle wheel. Alternatively the device might be applied to the brake drum of the wheel. Fig. 14 shows two balancing devices 19 applied to a roller like body 25.
Patent GB-808252-A (GB)
Title: Improvements in electric accumulator separators
IPC: H01M2/16
Filed: 1957-03-13
Abstract: 808,252. Paper-board accumulator separators. BOSCH G.m.b.H., R. March 13, 1957 [March 14, 1956], No.8221/57. Class 96. A separator for an electric accumulator is formed of paper-board, e.g. 0.2 to 0.4 mm. thick folded to a zig-zag corrugated form, and strengthened by a hardened synthetic resin. Hardening may be completed whilst or after holding the paper-board in its zig-zag shape. The angle a between the folds 3 may be 60 degrees.
Patent GB-1041371-A (GB)
Title: Improvements in and relating to apparatus for producing moving and colour-changing decorative lighting effects
IPC: F21V9/40
Filed: 1963-03-01
Abstract: 1,041,371. Chromotropes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 1, 1963 [March 6, 1962], No. 8292/63. Heading G2J. A chromotrope comprises a light source 2, a transparent rotatable disc 7 having different coloured sectors and a reflective rotatable body 9 having an irregular surface formed by creasing a metal foil, the light being reflected onto a screen 5 by the body 9 after passing through the disc 7. An elongated member 8 having a plurality of irregularly shaped holes may be eccentrically mounted on the disc 7. A second fixed disc 6 having a hole 6a is mounted between the disc 7 and the lamp 2 to regulate the original beam of light. The body 9 and disc 7 are rotated by friction wheels 15, 13 respectively which are mounted on a common shaft.
Patent GB-893474-A (GB)
Title: Electric communication systems
Inventor: WHITE LOUIS STEWART
IPC: H04H1/00
Filed: 1957-03-13
Abstract: 893,474. Television distribution systems. COMMUNICATIONS PATENTS Ltd. June 12, 1958 [March 13, 1957], No. 8311/57. Class 40 (4). The variation in impedance of an earth phantom circuit as subscribers to a wired television system switch in is used to obtain a signal indicating the number of subscribers viewing a programme. Programmes from sources A and B are sent over lines 7 and 9 of individual quad cables into which subscribers are connected selectively over switches such as 17 and 18. The audio circuits are not shown. A centre tap is taken from the transmitting transformers 8 and 10 and phantoms are formed whenever subscribers operate mains switches such as 21 which connect a resistor 23 between the cable screens and a centre tap on the subscriber's line transformer. The impedance of the phantom circuit decreases as more subscribers switch into the system and meters 11 and 12, with energizing A.C. sources 13 and 14, give an indication of the number of subscribers viewing each programme. The meters may be recording meters and may be fed from a bridge circuit having the phantom circuit in one arm and having a fixed resistor which when put in place of the phantom is equivalent to all subscribers connected in and gives a calibration (see Fig. 2, not shown). It is mentioned that D.C. sources can be used with the A.C. sources to examine the condition of the phantom so that the popularity of two programmes sent over a single line may be separately monitored. The signals derived from each line of Fig. 1 may be separately amplified while being subject to a gain control derived from the sum of the signals so that their difference after amplification is independent of the number of subscribers viewing and gives a direct indication of relative popularity, Fig. 3, not shown. Signals indicating popularity in remote groups of receivers may control frequency modulators common to each group so that they may be transmitted in different frequency bands over telephone lines to a central station. Specifications 893,475, 893,476 and 893,477 are referred to.
Patent GB-1378054-A (GB)
Title: Input number circuit means of an electronic calculator using a multizero input key
IPC: G06F15/02
Filed: 1972-02-23
Abstract: 1378054 Digital calculators CASIO COMPUTER CO Ltd 23 Feb 1972 [24 Feb 1971] 8338/72 Heading G4A An electronic digital calculator includes a multi-zero key which, when operated, shifts an input number stored in a register by an amount corresponding to the number of zeros. On completion of the shift an arithmetic operation is automatically effected, a program determining the form of the operation. The circuit shown, Fig. 1, includes a key K1 causing multiplication of the input number by 1000 and a key K2 causing multiplication by 100. If K1 is operated a pulse of duration t equal to the period of clock pulse train #2 is issued by gate A1. When the next pulse #2 occurs bistable SF1 provides an output pulse of duration t via gate 03 to the input register shift control circuitry and also via gate 02 to bi-stable SF2. As successive pulses #2 occur SF2-SF4 in turn produce pulses of duration t. The output from SF4, which occurs after the completion of shift of the input number, causes the arithmetic operation to take place. If key K2 is operated a pulse of duration t passes via gates A2, 02 to bi-stable SF2, resulting in only two pulses being issued via gate 03, immediately followed by a pulse from SF4. The pulses from 03 merge to provide a duration significant signal.