baber/WOPTO huggingface dataset:
Patent GB-1029291-A (GB)
Title: Photographic projecting printing apparatus
Inventor: WOODCOCK EDWARD CECIL
IPC: G03B27/62
Filed: 1962-01-29
Abstract: 1,029,291. Photocopying apparatus. AGFA A.G. Jan 29,1963 [Jan 29,1962],No. 3329/62. Heading G2A. A projection printing apparatus has manually adjustable paper feed mechanism and magnification ratio, and has exchangeable negative supports for varying sizes of negatives, with indicating means which, when the support is in position, indicates a symbol which particularizes settings for both the feed mechanism and the magnification ratio. As shown, the negative support 13 is a plate having an aperture 14 of the correct size for the negative, a set of supports for different sizes of negatives being provided. The negative is located by a pair of runners 15 having flanges 16 which engage the margins of the film, so as to allow longitudinal movement of a strip of film having several negatives. Below the support 13 is an adaptor plate 11, pins 18 of which locate it on table 19 of the apparatus. The pins 18 extend from both faces of plate 11, so that the negative support 13 can also be located thereon. The plate 11 carries a series of pairs of symbols (J1, G5,&c,). When a particular negative support is in position, a window 25 therein is positioned so as to reveal one pair of symbols only (J1 in Fig. 1), which indicates the paper feed setting and magnification ratio setting for that particular negative. The knobs 27, 26 which control these functions, and are graduated with the symbols, are then set accordingly by hand. The plate 11 (Fig. 2) may be turned over, the other face providing a further series of symbols, corresponding to a different paper width.
Patent GB-802424-A (GB)
Title: Improvements in or relating to wire for use in pre-stressed concrete construction
Inventor: HANN KENNETH GRAEME
IPC: E04C5/08
Filed: 1955-02-25
Abstract: 802,424. Wire. SOMERSET WIRE CO., Ltd. May 24, 1956 [Feb. 25, 1955], No. 3371/58. Divided out of 802,423. Class 83 (2). [Also in Group X] Wire, Fig. 1, for use in pre-stressed concrete construction is formed to a helical configuration to provide continuous frictional anchorage along its entire length, the pitch of the helix being from 4-10 times the wire diameter, and the diameter of the helix coil being such that the central longitudinal axis falls within the periphery of the wire at any cross-section. The method of forming the wire is described in the Specification 802,423. Specification 748,357 also is referred to.
Patent GB-556001-A (GB)
Title: Improvements relating to electrical communication systems
IPC: H04B14/02
Filed: 1942-03-13
Abstract: 556,001. Wireless and like signalling. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and AMBROSE, D. M. March 13, 1942, No. 3374. [Class 40 (v)] Modulation is effected by varying the waveform of a sub-carrier or carrier wave, in accordance with a signal voltage. A sine wave of a sub-carrier frequency higher than is contained in the signal is applied at 3, 4 to the grid of a valve V2, and the signal voltage is applied at 1, 2 to the grid of a valve V1. The two valves have a common anode load resistance 17, across which is developed a sub-carrier wave modulated in amplitude. The peaks and troughs of this wave are cut off by oppositely-connected biased diodes V3, V4 giving at the output terminals. a wave which varies in form between a pure sine wave and a sloping-sided pulse as shown in Fig. 3. This wave is modulated on to a carrier at the terminals 5, 6 of a radio transmitter. At the receiving station the sub-carrier, after detection, is passed through limiters to a filter which rejects the fundamental sub-carrier but passes its harmonics to an ordinary rectifying detector, from which the signal passes through a lowpass filter to the phones or other receiving instrument. Alternatively the received modulated sub-carrier may pass to a damped circuit tuned to the sub-carrier frequency. The oscillations thus produced in this circuit vary in amplitude with the voltage variations of the original signal. The Provisional Specification states that the carrier may be transmitted over a wave guide, and that the sub-carrier may be transmitted directly over a line.
Patent GB-648986-A (GB)
Title: Improvements in or relating to sheet feeding apparatus
IPC: B65H3/42
Filed: 1948-02-05
Abstract: 648,986. Sheet-feeding apparatus. HARRISSEYBOLD CO. Feb. 5, 1948, No. 3397. Convention date, July 30, 1946. [Class 100 (i)] A sheet-feeding apparatus which separates sheets from a pile P and advances them in a stream of underlapping sheets is constructed of a rotating hollow cylinder 22 formed with a gap 25, and mounted within the cylinder are two angularly separated sheet gripping or suction members 52, 53 which are given pivotal movements as the cylinder 22 rotates due to gears 65, 66 which are geared to a sun gear 44 which is given intermittent motions in opposite directions by a sector gear 45 which is oscillated by the machine to which the sheets are fed, by means of a cam 32 engaging a roller on the arm of the sector 45. As shown in Fig. 3, the'suction member 52 is fitted with a number of suction cups 54 which engage and separate the top sheet of the pile P, and then as the cylinder 22 rotates counterclockwise the member 52 is rotated clockwise to move the front end of the separated sheet into the recess 25 and towards the centre of the cylinder 22. At the same time the suction member 53 which is formed with radial suction apertures is also moved clockwise towards the centre of cylinder 22, and when the members 52, 53 are in the position shown in Fig. 8, the separated sheet is released from the cups 54 and is held by the suction parts of the member 53. The clockwise movement of the members 52, 53 continues so that they then move outwards until the sheet which is engaged on the underside by the member 53 is moved through the gap 25 and brought into engagement with a roller 80, which when the suction in member 53 is cut off, co-operates with the roller 22 to advance the sheet to conveying mechanism. As this action occurs before the preceding sheet has passed the roller 80, the newly separated sheet is placed under the preceding sheet and a stream is formed. The cylinder 22 is fitted with a valve plate, which co-operates with a fixed plate connected to a suction pump, to control the air pressures in the members 52, 53, and the separation of the sheets may be assisted by air blasts acting on the front edge of the pile under the separated sheet.
Patent GB-1530963-A (GB)
Title: Continuous steel production
IPC: C21C5/52
Filed: 1976-01-29
Abstract: 1530963 Continuous production of steel KLOCKNER-WERKE AG 29 Jan 1976 [6 Feb 1975] 03457/76 Addition to 1470796 Heading C7D [Also in Division F4] In the melting and refining of ferrous material (e.g. scrap, sponge) to steel the charge is melted from below in a vessel equipped with a burner, the melt passing to a tiltable electric arc refining vessel, beneath the melting vessel, which is provided with a water-cooled step (14) around its inner periphery at the slag zone. A refractory material, e.g. dolomite, may be placed on the step for lining repair purposes.
Patent GB-306395-A (GB)
IPC: F02M59/34
Filed: 1929-02-02
Abstract: 306,395. Maschinenfabrik Augsburg- N³rnberg Akt.-Ges. Feb. 18, 1928, [Convention date]. Multiple - acting piston pumps; regulating delivery by opening by-passes and suction valves.-In an engine having several injection valves per cylinder. each valve being supplied with fuel by a separate pump, the pumps have a common drive and are regulated in common, the suction or overflow valves of all the pumps being simultaneously controlled by a common mechanism, the drive of which is taken from the pump driving means. As shown applied to an engine in which each cylinder is provided with two injection valves supplied with fuel through pipes e, f, the two pump chambers a draw fuel from a common reservoir, and are each provided with a plunger b and with suction and delivery valves c, d, the plungers b being driven from a cam g acting through a sliding member h bearing on a bridge i. The bridge i is connected by a lever and rod m to a lever n which is mounted on an eccentric on a shaft o and is provided with two arms p, p<1> bearing on adjustable caps q on 'the stems of the suction valves c, the shaft o being connected to a governor or to a hand regulating device. If air is employed to inject the fuel, the regulation is effected by the control of the suction valves of the pumps as described above, but if airless injection is used, the regulation is effected by controlling the overflow valves of the pumps. When employed on a multicylinder engine, the rods m are adjustable in length by a device s, and are set to supply a uniform amount of fuel to each cylinder. Specification 233,665 is referred to.
Patent GB-192921-A (GB)
Title: Improvements in and connected with inhalers
IPC: A61M15/00
Filed: 1922-02-08
Abstract: 192,921. McKillop, D., and Murray, J. Feb. 8, 1922. Inhalers.-A pocket inhaler comprises a tube A one side of which has perforations E covered by a hinged lid P. The tube contains cotton-wool saturated with eucalyptus &c. and is closed at the end by a lid B. The lid D is locked by a sliding spring catch H and opened by a coiled spring K.
Patent GB-327501-A (GB)
Title: Improvements in tables and table covers
IPC: A47B3/12
Filed: 1929-02-04
Abstract: 327,501. Lombardini, G. Feb. 4, 1929. No Patent granted (Sealing fee not paid) Table covers.-A long length of fabric to serve as a table cover e is secured to rollers f at opposite ends of the table top c, the rollers being enclosed in a protective casing having flange upper edges which overhang the table top and the marginal edges of the cover e. The protective casing consists of end plates j, with flanged upper ends J<1>, detachably engaged with side plates i having flanged upper edges i<1>, which overhang the table cover. The cover is secured to the rollers by U-shaped clips g. The table top c is provided with a sheet of American cloth or like waterproof material d. Rollers k, mounted between the frames i, guide the fabric e around the ends of the table top c. The cover may be provided with a covering m of glass etc., which may consist of two or more panels connected by a backing n, the glass cover being housed beneath the table top, upon ledges or in a looker, when not in use. According to the Provisional Specification, a layer of felt may be inserted between the sheet of American cloth and the table top.
Patent GB-1377331-A (GB)
Title: Pressure relief systems
IPC: F16K17/10
Filed: 1973-01-24
Abstract: 1377331 Fluid-pressure servomotor systems DRESSER INDUSTRIES Inc 24 Jan 1973 [9 Feb 1972] 3677/73 Heading G3P A main relief valve 16 is controlled by a pilot valve 61 having means to variably pre-set the blowdown, i.e. the difference between the set pressure and the closing pressure. On the preferred embodiment, such means consists of a threaded plug 71 which may be rotated to vary the lift of the pilot valve and is set in the desired position by a pin 75 engaging one of a series of radial notches 76. Fluid from the inlet 14 acts on the pilot valve via a tube 25 and conduit 26 to lift the valve against a pre-set spring 63. Once the pilot valve has opened, fluid acts on a piston 34 to open a relay valve 41 against a spring 35 and connect a chamber 23 of the main valve through a passage 28 with the outlet 21 so that the main valve opens. A diaphragm arrangement 45 permits auxiliary operation of the relay valve when necessary. The Specification gives examples of valve dimensions and spring-loads and of the way in which blowdown is inversely related to pilot valve lift.
Patent GB-563728-A (GB)
Title: Improvements in and relating to fluid-pressure-actuated presses
IPC: B30B15/16
Filed: 1943-03-08
Abstract: 563,728. Hydraulic presses ; pneumatic presses. PILKINGTON, F. S., and HOLMES & CO., Ltd., C. D. March 8, 1943, No. 3758. [Class 69 (ii)] [Also in Group XXVI] A liquid pressure or compressed air &c. press comprises main and auxiliary actuating cylinders 6, 61 having telescoping piston-rods 68, 4, which,may be operatively connected together at will whereby the thrust of the auxiliary piston is added to that of the main. The two rods are liquid filled from the space above the piston 66 and are connected through a normally open valve 70. This valve is closed by a piston motor 63 controlled by the slide valve of the auxiliary cylinder, which is so constructed as to operate the valve immediately prior to the supply of pressure fluid to the cylinder 61. The main cylinder slide valve 11 is operated by a lever 60 to supply pressure to either end of the cylinder through pipes 28 or 29 respectively, and to exhaust the opposite end through pipes 30 or 28. Stop valves 31, 32 and non-return byepass valves 37, 38 are provided in the pipes 28, 30; the valve 38 being capable of independent control by bobbins 24, 26 on the ram, which operate a slide valve controlling supply of air to a valve-operating cylinder 40. Bobbin 24 also automatically releases a spring-loaded lever 19 to reverse the main slide valve 11 at the end of the stroke. The slide valve of the auxiliary cylinder is actuated by a lever 78 linked to the main slide in such a manner as to prevent movement of the pistons in opposite directions while they are operatively connected. Specification 555,488, [Group XXVI], is referred to.
Patent GB-900522-A (GB)
Title: Improvements in accessories for dry-shaving apparatus
IPC: B26B19/26
Filed: 1959-02-03
Abstract: 900,522. Dry shavers. PHILIPS ELECTRICAL INDUSTRIES Ltd. (Philips' Gloeilampenfabrieken N.V.). Feb. 3, 1959, No. 3799/59. Class 131. A reciprocatory hair-clipping, massage or manicure accessory, for attachment to the housing of a dry shaver in place of a shaving head having a cutter rotated behind a shearplate by a shaft from an electric motor, comprises a rotatable pin, sleeve or disc directly coupled to the shaft and eccentrically coupled to the reciprocated member of the accessory. As shown, a plate 25 of a clipper head is secured by grub-screws 25a to a fastening-member 14 which is clamped by screws and nuts 18 to a second fastening-member 15, a blank disc 17 and a guide-ring 16 for a driving disc 19 being secured between the members 14, 15. The disc 19 is coupled to a drive-shaft 11 and has a crank-pin 22 received in a slot 23 in a connecting- rod 24 coupled to a toothed cutter 32 by a pin 33 and rocked about an adjusting nut 28 passing through a slot 34 in the cutter 32 so that the cutter 32 is reciprocated with its teeth 36 cooperating with teeth 37 of a detachable cutter 26 towards which it is urged by a coil-spring 36. In a modified clipper head an eccentric rotated by the drive-shaft is engaged in an arm provided with cutting teeth. Specification 891,249 is referred to.
Patent GB-1211334-A (GB)
Title: Production of nitrophosphate fertilisers
Inventor: COPIN ROBERT
IPC: C05B11/06
Filed: 1969-01-23
Abstract: 1,211,334. Nitrophosphate fertilizers. SOC. CHIMIQUE DES CHARBONNAGES. 23 Jan., 1969 [1 Feb., 1968], No. 3854/69. Heading C1A. Nitrophosphate fertilizers are prepared by: (i) digesting a naturally occurring calcium phosphate with aqueous nitric acid in the presence of a gas containing one or more nitrogen oxides; (ii) cooling the solution obtained in order to crystallize at least a part of the Ca(NO 3 ) 2  present as Ca(NO 3 ) 2 .4H 2 O; (iii) separating the Ca(NO 3 ) 2 .4H 2 O; (iv) neutralizing the mother liquor with ammonia, concentrating the resulting mixture, adding if desired a potassium salt and then granulating the mixture to form a nitrophosphate fertilizer; (v) thermally decomposing the separated Ca(NO 3 ) 2 .4H 2 O in the presence of the off gases from step (i) and (vi) recycling the nitrogen oxide containing gas from step (v) to step (i). In the preferred embodiment, the phosphate and nitric acid (concentration less than 55%, preferably 35%) are added to reactor, 1, which is at 20-60‹ C. (30-40‹ C. preferred). Both the liquid and the off gas therefrom are passed to reactor 2, which is at 20-90‹ C. (40-60‹ C. preferred). The liquor is cooled to 12‹ C. at 3 and 4, and Ca(NO 3 ) 2 .4H 2 O is separated at 5. The liquor containing Ca(NO 3 ) 2 , HNO 3 , H 3 PO 4 , H 2 SiF 6 , and SiO 2 , goes on to be converted into a nitrophosphosphate by the addition of HNO 3  and NH 3 . The separated Ca(NO 3 ) 2 .4H 2 O is melted at 6, mixed with CaCO 3  from 10, and passed to the granulator drier 7, which is heated by the combustion gases of the decomposer 9. The screen 8, enables only particles of size 1-15 mm. to pass to the decomposer 9. Oversize particles are returned to the melter 6, and undersized particles are returned to the granulator 7. Off gas from reactor 2, now containing SiF 4  and HF, is mixed with CO 2  before entering decomposer 9 which is at 440-750‹ C. The CaCO 3  formed in the decomposer is returned to 6, via 10, excess being removed. This CaCO 3  also contains some CaF 2 , SiO 2  and Ca 3 (PO 4 ) 2 . The off gas from the decomposer 9, is passed to reactor I, either directly or by first condensing off part at 27 and adding as liquid to reactor 1. Alternatively the Ca(NO 3 ) 2  containing solution or molten Ca(NO 3 ) 2  may be passed directly from 5 to hot CaCO 3  in 9, or less preferably a solution of Ca(NO 3 ) 2  is sprayed on to a bed of lime, no CO 2  being added to the off gas from 2. The Ca(NO 3 ) 2 .4H 2 O may be removed by solvent extraction with, for example, isobutanol.
Patent GB-669184-A (GB)
Title: Improvements in means for folding sheets, tablecloths and like flat articles
IPC: D06F89/00
Filed: 1948-02-10
Abstract: 669,184. Folding sheets &c. LISTER, S. W. Feb. 10, 1949 [Feb. 10, 1948], No. 3895/48. Class 42 (ii). Means for folding sheets, tablecloths, &c. comprises a tetrahedral former combined with endless conveyer bands adapted to feed the articles in succession over the former from one edge of one triangular face thereof towards the opposite apex of the face with a longitudinal fold line of the articles disposed along a line joining the apex to the mid-point of the said edge, the conveyer bands maintaining each article in face-to-face contact with the surfaces of the former throughout its travel thereover, and includes guide means for each band which causes it to twist face-for-face and edge-for-edge during a part of its travel while it is running clear of the former. This twisting results in the face of each band which is nearer the former during one circuit thereover becoming the face which is farther from the former during the next successive circuit. As shown, a sheet D to be folded is fed from the delivery end B of an ironer or drying machine on to a conveyer A on a carriage 4 mounted for transverse movement on rails 6. Carriage 4 is adjusted transversely by an operator by means of a hand wheel 7 controlling servomotor mechanism, so that sheet D is located as desired (e.g. centrally) relative to a folding mechanism C; for this purpose a gauge-bar 9 with a central mark 10 and coloured graduations 11 is provided. Sheet D passes from conveyer A on to endless conveyer bands 25, 26 of the folder C. Bands 25, 26 pass around a driven roller 19, over the rear and side surfaces of a tetrahedral former 12, around rollers 17 or 18, 24, 23, 22, over guidebars 21 and around roller 20. Each band, during its travel clear of the former, is twisted face-for-face and edge-for-edge. The sheet is carried between bands 25, 26 upwards over the rear and side surfaces of former 12 to emerge folded longitudinally (as shown, centrally) on the top run of band 25. The sheet now passes on to a conveyer E which is adjusted transversely, similarly to conveyer A, to position the sheet relative to a second folding mechanism F. Folder F is similar to folder C, except that it is half the width and is inverted as compared with folder C, giving the sheet a second longitudinal fold by passing it downwards over a former 12a. From folder F the article is delivered on to a conveyer G which may carry the twice-folded sheets over a transverse folder of any known type.
Patent GB-929444-A (GB)
Title: Improvements in or relating to electricity maximum demand indicators
Inventor: DEACON LIONEL OAKLEY
IPC: G04C1/00
Filed: 1961-02-02
Abstract: 929,444. Maximum demand meters. CHAMBERLAIN & HOOKHAM Ltd. Jan. 24, 1962 [Feb. 2, 1961], No. 3943/61. Class 106 (3). In a maximum demand meter in which a pointer driving member is periodically re-set to zero position by the release of energy from a spirally-wound spring 10 which has one end connected to a ratchet wheel 17 rotatable by an oscillatable pawl 15 to rewind the spring, the pawl 15 is actuated through an electric motor 11 arranged to run continuously while the meter is in use and after the wheel 17 has turned through a predetermined angle the pawl 15 is rendered ineffective to drive it further by operation of a member 19 which rotates with the wheel 17. The motor 11 rotates a cam 12 through gearing 13 and the cam 12 oscillates a pivoted plate 14 carrying the pawl 15 which rotates the ratchet wheel 17, a detent 18 preventing unwinding. In each revolution of the wheel 17, a tooth 20 on the member 19 advances a star-wheel 20 one tooth and after five revolutions a notch 23 in a cam 22 connected to the star wheel 21 allows a stressed looking lever 25 to rock. The arm 26 of the lever 25 then blocks return movement of the plate 14 and inhibits operation of the pawl 15 until a re-starting operation such as described in Specification 929,445 is performed after each periodic release of energy for resetting purposes.
Patent GB-997645-A (GB)
Title: An appliance for discharging electric potentials in the human body
IPC: H05F3/02
Filed: 1964-01-30
Abstract: 997,645. Earthing the human body. R. KASTNER. Jan. 30, 1964 [Jan. 31, 1963], No. 4041/64. Heading A5R. A brush 1 for earthing the human body has an insulating handle 1a and electrically conducting bristles which are connected by a cable 2 to an earthed foot mat 4. The foot mat incorporates a grid of copper rods or coils.
Patent GB-1032321-A (GB)
Title: Improvements in or relating to hand barrows
Inventor: REED GEORGE WILLIAM
IPC: B62B1/16
Filed: 1964-01-30
Abstract: 1,032,321. Tipping barrows. TERRA FORCE (GREAT BRITAIN) Ltd. Jan. 22, 1965 [Jan. 30, 1964], No. 4083/64. Heading B7B. A hand barrow having side frames each consisting of members 15, 16, 17 and 18 and held in spaced relationship by transverse members 21, 22 has the body pivotally mounted near its C.G. at the junction of the members 15 and 18 so that it may be pivoted forwardly by the handle 32 to an inverted discharge position.
Patent GB-941051-A (GB)
Title: Improvements in or relating to belt conveyors
Inventor: LONG HUGH
IPC: B65G39/16
Filed: 1959-02-05
Abstract: 941,051. Endless belt conveyers. DISTING- TON ENGINEERING CO. Ltd. March 25, 1960 [Feb. 5, 1959], No. 4086/59. Heading B8A. Misalignment of a conveyer belt 5 is corrected automatically by means of bell-crank levers 1, which are pivoted at 8 to a spreader member 3 supported between rope side frames 6, one arm of each lever 1 being provided with a roller 4 which engages the edge of the belt and the other arm being pivoted at 9 to a belt supporting idler assembly 2, so that when the belt wanders towards the right, for example, to the position shown, the levers 1 pivot clockwise, thereby pivoting the idler assembly anticlockwise and causing the belt to return to its aligned position. Springs 7 urge the rollers 4 against the edge of the belt and in a modification, Fig. 3 (not shown), stops are provided on the spreader member 3 to limit inward travel of the levers 1.