baber/WOPTO huggingface dataset:
Patent GB-1076620-A (GB)
Title: Repetitive cycle rotary impression machine
Inventor: GAVIN THOMAS WILLIAM
IPC: B41F19/00
Filed: 1965-07-20
Abstract: 1,076,620. Cutting-machines. T. W. GAVIN. July 20, 1965 [Sept. 1, 1964], No. 30798/65. Heading B4B. [Also in Division B6] In a machine wherein printing, cutting, slitting or scoring dies are mounted on slats 34 carried by endless chains 30, the slats abut one another along the straight runs of the chains, i.e. as they pass through a printing &c. position 24, and are caused to move out of abutting relationship as they pass around the driving and guiding sprockets 26, 27. To each lateral edge of a slat 34 is attached a bar 39 to which is secured another bar 40. The bar 40 is pivoted on an extended link-pin 52 of the chain, the pin 52 being in line with the leading edge of the slat. Another extended link-pin 49 carries a block 45 slidable in a slot 43 in the bar 40. As the leading edge of a slat starts to move over one of the sprockets, the block 45 moves from right to left, Fig. 7, in the slot 43 causing the trailing edge of the slat to be moved clear of the leading edge of the following slat. The arrangement restores the slats to abutting relationship when they leave the sprocket. When the machine is used for making box-blanks, a suitable combined printing and cutting die is assembled on a board, and the board is cut into slats which may be of different widths, for attachment to the chains 30. As shown, the box material S passes with the slats between two presser rolls 17, 22, but the diecarrying chains may be used in a platen press.
Patent GB-776372-A (GB)
Title: Improvements in and relating to cartridge-actuated tools
IPC: B25C1/12
Filed: 1954-10-26
Abstract: 776,372. Cartridge-operated tools. LEIMGRUBER SOC. ANON., J. Oct. 26, 1954 [Oct. 30, 1953 ; Aug. 24, 1954], No. 30829/54. Class 119. A cartridge-operated tool for firing nails, bolts &c into walls &c has an expansible cartridge chamber formed of four sections 1-4, Figs. 1, 3, located around the axis of the gun barrel, the sections having inner cylindrical and outer conical surfaces and being moved radially towards each other to form a closed cylindrical cartridge chamber of diameter less than that of the barrel by relative longitudinal movement between the sections and a part having a corresponding frusto-conical surface which engages the outer surfaces of the sections. The sections are urged apart for release of the spent cartridge, which then drops through the barrel, under the action of gravity or by spring means. As shown in Fig. 1, the frusto-conical surface engaging the sections 1-4 is formed as a recess in the front of the breech block 17 which has a bayonet connection 23 with the rear of the barrel 5 so that forward movement and then turning of the breech block moves the sections into contact with each other and locks the breech block to the barrel. An annular support 6 prevents forward movement of the sections and springs 10 located in recesses 9 in the support 6 engage the sections to urge them apart. An expansible boltretaining ring 26 is provided. In a second embodiment the sections 40, Fig. 5 (not shown) have their outer conical surfaces sloping in the opposite directions and are moved into contact with each other by a member 42 adapted to be screwed or slid over the rear of the barrel 46 to urge the sections inside a frusto-conical recess 44 in the barrel. In another embodiment the cartridge chamber sections 54, Fig. 7, are adapted to engage a frusto-conical recess 76 in the front of the breech block 72 when the barrel is pushed rearwardly and turned to engage helical threads 70, 71 on the rear of the barrel and on the breech block. A bolt holding member 61 is secured in the rear end of the barrel and has radial studs 65 engaging with clearance perforations 66 in the sections 54 to facilitate guiding of the latter. The inner cylindrical surfaces of the sections 54 are stepped as shown at 58, Fig. 9, the shoulder 58 engaging the annular rear terminal surface 60 of the member 61. When the breech is opened by pivoting the barrel downwardly about pivot pin 75 as shown in Fig. 9, the sections 54 move apart by rocking to a small extent about their shoulders 58 over the outer edge of the annular surface 60 under the action of gravity. This releases the spent cartridge which drops down through the barrel.
Patent GB-186854-A (GB)
Title: Improvements in and relating to means for checking the working of colliery trucks
IPC: G06M1/04
Filed: 1921-11-18
Abstract: 186,854. Rogers, T. W., (Krupp Akt.- Ges., F.). Nov. 18, 1921. Stencil and keyboard switches.- Relates to means for checking the working of colliery trucks and consists of an arrangement, above ground, of a number of counters, a hundred are shown, electrically connected for actuation, one to each of the delivery sections below ground; actuation of a counter only being possible by a circuit closing plate with a combination of holes on it peculiar to that counter and delivery section. The circuit closing plate B, which is carried with each truck has flanged edges and four columns of hole positions 5, 4, 5 and 4 in number, and having holes one less in number in each column. The plate is inserted as shown into a flanged plate E, which is lifted against the action of springs c<1>, by cams f<1>, on a manually operated shaft to press the plate against plungers D which operate contacts of two types G, H, which are wired up as shown in Fig. 8. The contacts G, close the circuit as shown in Fig. 5, and contacts H break the circuit as shown in Fig. 6 so that the correct plate must be employed at any delivery section thus ensuring that only the trucks appertaining to each delivery section can register from there.
Patent GB-856920-A (GB)
Title: Improvement in and relating to emulsions
IPC: C08F4/30
Filed: 1959-09-10
Abstract: Stable aqueous polymer emulsions are prepared by processes comprising dissolving in water a water-soluble emulsifying agent which is a copolymer of vinyl acetate and a polyoxyalkylene glycol or a hydrolysis product of such a copolymer in which at least a portion of the acetate groups are hydrolysed to hydroxyl groups, adding a polymerizable monomer selected from styrene, vinyl esters of C1-8 alkanoic acids and C1-8 alkyl esters of acrylic and methacrylic acids, stirring to emulsify said monomer, adding an emulsion polymerization catalyst and subjecting the emulsion to polymerising temperatures between 20 DEG C. and the reflux temperature of the emulsion, the weight of monomer added being 30 to 60% of the emulsion product and the weight of vinyl acetate-polyoxyalkylene glycol copolymer being 5 to 25% of the weight of monomer.  The emulsifier may be prepared by refluxing vinyl acetate and a polyoxyalkylene glycol, e.g. derived from ethylene, propylene or butylene oxides, with a catalyst, e.g. benzoyl peroxide; and may be used in crude form, the soluble portion extracted with boiling water or the product hydrolysed with sodium hydroxide and methanol.  Specified monomers are styrene, vinyl acetate, vinyl chloracetate, vinyl butyrate, vinyl 2-ethylhexoate, methyl acrylate, ethyl acrylate and methyl methacrylate.  Polymerization may be effected in the presence of other emulsifiers, e.g. alkylaryl sodium sulphonates, catalysts, e.g. potassium persulphate or redox systems comprising potassium persulphate or cumene hydroperoxide and sodium formaldehyde sulphoxylate, and sodium bicarbonate.  The products may be used in paints, coating compositions and adhesives.
Patent GB-262772-A (GB)
IPC: G01L19/08
Filed: 1926-12-06
Abstract: 262,772. Aldeborgh, E. Dec. 12, 1925, [Convention date]. Linear-dimension gauges. - Relates to gauges of the type in which a plunger feeler rocks the pointer through the medium of a two-armed lever and a pin engaging a sinuous groove on the pointer spindle, and consists in a particular construction in which the indicating mechanism and the plunger guide is carried on the back of a detachable casing. The pointer spindle 8 is provided with a spiral groove with which engages a lug 16 on a sleeve 15 sliding on a rod 14 parallel to the spindle, the sleeve being prevented from rotation by a second lug 17 engaging a slot 12 in a fixed bracket 10, and being moved by the engagement therewith of the end of the long arm 22 of a bell crank lever the short arm 21 of which is engaged and moved by the end of the plunger 4 of the gauge. The casing 25 of the mechanism has a back part 1 which is removably secured by screws 26. The bracket 10 is supported by the back part 1 and is formed at the front with a bearing for the spindle 8. A lug 2 on the part 1 serves for attachment to a suitable stand and a second lug 3 is bored to accommodate the plunger 4. A pin 6 on the plunger works in a recess 6* which prevents turning of the plunger while the movement of the latter is limited by engagement of the pin 6 with lugs 5, 7 respectively. The sleeve 15 is returned by a spring 23.
Patent GB-783436-A (GB)
Title: Improvements relating to liquid spraying machines
Inventor: LUDFORD LAWRENCE
IPC: B05B15/00
Filed: 1955-03-31
Abstract: 783,436. Crop sprayers. FOUR OAKS SPRAYING MACHINE CO., Ltd. Jan. 27, 1956 [March 31, 1955], No. 30951/54. Class 69 (3). A spraying machine of the type in which a liquid storage tank 2 is mounted on a tractor, or a vehicle coupled thereto, and a pump 3 is arranged to pump liquid from the tank, is provided with two hose reels 9 rotatably mounted by their hollow hubs 10 on a fixed tubular axle 6 above the tank. Liquid is fed separately via pipes 4, 5 to the opposite ends of the axle, and liquid flows through axle outlets 17 to the hollow hubs and then to the hoses through hose connectors 18. The reels are spaced by sleeves 14, 14a and the sides of the reels make liquid-tight connection with the ends of the hubs. Valves 24 control the liquid supply to each hose, and laterally extending members 20, 22 with rollers 23 support the hose during spraying. Angularly adjustable sockets 36 may support spray booms fed from hoses 26a. A number of knap-sack sprayer containers 27 may be filled with liquid by hoses 30 connected to valved outlets 29 in a pipe 28 connected to the pump supply. Specification 759,626 is referred to.
Patent GB-982506-A (GB)
Title: Mixer
IPC: B01F7/16
Filed: 1963-08-08
Abstract: 982,506. Mixing apparatus. F. DIERKS, F-W. DIERKS, and W. DIERKS. Aug. 8, 1963 [Aug. 8, 1962; July 20, 1963], No. 31324/63. Heading B1C. [Also in Division F4] Apparatus for mixing and cooling synthetic resin granules comprises a container 1 through the base of which projects a shaft 8 carrying (preferably three) mixing tools 9, and having a cooling air blower entry 13 and a cover 2 providing an exit for the air through a filter 5. There may also be a cooling jacket 1<SP>1</SP>. As shown, the air entry 13 is tangential to the container wall and the exit is surrounded by an inverted frusto-conical deflector 4 ; the air input is controlled by a manually operated rotary valve (see Figs. 2 and 3, not shown). Each mixing tool may carry at its outer end a vertical deflector plate inclined at 45 degrees to the direction of rotation, and vertical deflectors may also be attached to the conical member 10 between the mixing tools (see Figs. 4 and 5, not shown). The material is caused to circulate in the container and is discharged centrifugally through the door 6 which is actuated by a hydraulic or pneumatic cylinder 7.
Patent GB-535122-A (GB)
Title: Improvements relating to ships' stern frames
IPC: B63H25/38
Filed: 1939-12-04
Abstract: 535,122. Rudders. RAMSAY, J. M., and RAMSAY & SON, Ltd., J. M. Dec. 4, 1939, Nos. 31366/39, 3077/40, 3643/40 and 5995/40. [Class 114] The back post 5 terminates at either end in plates 7, 11 which are bolted to a bracket piece 10 and a sole piece 13 in the stem frame 1. The rudder post is hollow, embraces the back post and is bolted at its ends to the rudder 6 and the stock 14. The plate 7 and bracket 10 are located within the trunk 3 provided for the passage of the stock 14, the latter is connected to the rudder 6 by coupling 15 having a lower end 15a which surrounds the upper end of the back post. A distance piece may be included in the bolted coupling 11 to facilitate dismounting the back post.
Patent GB-782236-A (GB)
Title: Improvements relating to devices for inserting photographic film into position for exposure in cameras having curved image surfaces, and for removing the exposed film therefrom
IPC: G03B17/53
Filed: 1955-11-02
Abstract: 782,236. Photographic apparatus. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. Nov. 2, 1955 [Nov. 3, 1954], No. 31377/55. Classes 97(1) and 98(1) Cut films are fed along a guide into the curved exposure gate of a mirror camera at the rate of 10 or more frames per second by means of power driven rollers, and are removed therefrom, after exposure, along a guide by means of further power driven rollers. Preferably the film is fed intermittently from a supply roll to a cutter device which is synchronized with the film feed to cut off a frame length at a time. As shown, the motor 10 drives the gear 24 which carries a disc 25 and pin 26 which co-operate with a Maltese cross 27. The latter is connected to the rollers 31, 32 which draw the film intermittently from the roll 34 and pass one frame at a time past the cutter 42, 43. The cutter 42 is moved towards the film when the latter is stationary by a lever 97 operated from the motor 10 by cam members 22, 45. The cutter blade, which is concave in plan so that it cuts the edges of the film first, is also given a vibratory movement transverse to the film by an eccentric 41 on shaft 40, driven from the motor 10 by gears 36, 37, 39. Gear 37 also drives rollers 66, 68, 70, 72, 74 continuously, by mechanism not shown, and the severed film is conveyed by rollers 66, 68 into the curved film gate 6 where it is arrested by a stop lever 88, which is fixed to a shaft 99. The film is clamped in the gate by pressure plate 83 which is operated by levers 84, 85 when the shaft 20 is raised by the action of the cam 22 against roller 21 on lever 18. After exposure, the stop device 88 is released by the rotation of shaft 99, the pressure plate 83 is released by the lowering of rod 20, and the film is conveyed by rollers 70, 72, 74 to the pressure plate 92. The latter is operated by levers 93, 94 when the rod 20 is raised again, to push the exposed film into a storage chamber 7. Specification 741,700 is referred to.
Patent GB-1507375-A (GB)
Title: Process for preparing adenine
IPC: C07D473/34
Filed: 1975-07-28
Abstract: 1507375 Adenine MITSUBISHI GAS CHEMICAL CO Inc 28 July 1975 [31 July 1974 24 Sept 1974] 31550/75 Heading C2C Adenine is made by reacting (1) diaminomaleonitrile or diamino-fumaronitrile, (2) a formic acid salt, formamide, an ortho-formic ester or a formic ester and (3) ammonia or an ammonium salt. Ammonium formate may serve both as reactant (2) and as reactant (3). Reaction may be effected in the absence or presence of a solvent (e.g. a lower alcohol, benzene, acetamide or dimethyl formamide).
Patent GB-262820-A (GB)
Title: Improvements in or relating to thermionic amplifiers, modulators, detectors and like devices
IPC: H03G3/22
Filed: 1926-12-13
Abstract: 262,820. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Hansell, C. W.). Dec. 12, 1925, [Convention date]. Thermionic amplifiers and detectors. - In a thermionic amplifier, detector or modulator, means are provided to regulate automatically the grid bias so that the output maintains a substantially fixed relation to the input. Fig. 2 shows an amplifier in which grid current from the valves 36, 37 is arranged to produce a voltage drop in a resistance or a reactance 46 which drop is applied to the grids of the following stage of amplification and by adjustment of the element 46 a substantially straight operating characteristic is obtainable. In a modification two rectifier circuits arranged differentially are coupled to the input and output respectively and the combined current is passed through a resistance or reactance, the voltage drop in which is used to bias the grids of the valves in one stage of the amplifier.
Patent GB-1475627-A (GB)
Title: Apparatus for the transmission of data
IPC: G01K13/08
Filed: 1975-07-29
Abstract: 1475627 Telemetering systems TEKA BAUMASCHINEN GmbH' 29 July 1975 31610/75 Heading G1N Apparatus for measuring parameters of a mass located in a rotating drum 20, Fig. 1, e.g. a cement mixer, comprises transducers 19, connected via unit 18 to toroidal coils 13, 14 mounted on the rotating head 6 of the mixer, which couple with coils 3, 4 respectively mounted on a fixed plate 1. A rotating shield 10, 11 is provided between the two coil assemblies. Power is supplied from an A.C. source 21, Fig. 5, via coils 3, 13 to rectifier unit 18" which provides D.C. to energize an oscillator 18' whose output is frequency modulated by transducers 19, e.g. in accordance with temperature and moisture content of the cement mix, and is fed out by inductively coupled coils 14, 4.
Patent GB-953696-A (GB)
Title: Improvements in and relating to antibiotics
Inventor: ABRAHAM EDWARD PENLEY
IPC: C07D501/38
Filed: 1960-09-14
Abstract: Relates to 7 - (21,61 - dimethoxybenzamido) -cephalosporanic acid and to the 7-(21,61-dimethoxybenzoyl) derivatives of the nucleus of Cephalosporin Cc and of a Cephalosporin Ca compound and to salts thereof such as the sodium and pyridine salts. The derivatives may be prepared by reacting the corresponding antibiotic nucleus with 2,6-dimethoxybenzoyl chloride or other derivative of 2,6-dimethoxybenzoic acid having an acylating function for a primary amine.  Specification 953,695 is referred to.
Patent GB-507560-A (GB)
Title: Improvements in accounting and like calculating machines
IPC: G06C11/08
Filed: 1937-11-18
Abstract: 507,560. Accounting-machines; selective perforating machines. BROIDO, D. Nov. 18, 1937, No. 31735. [Class 106 (i)] [Also in Groups VIII and XVI] In a calculating-machine having means for indicating or recording the result of a calcula. tion, a perforated record of the result is produced by a number of denominational groups of punches arranged in a single line, a punch selecting device for each group being directly coupled to an associated indicating or recording element and the arrangement being such that only one punch in each group can be selected at a time to provide a single line of perforations in the record material. The invention is described as applied to a machine having type discs 4 set by mechanism of the kind described in Specification 475,943. The type discs are adapted to impress a record strip 9 upon actuation of a platen 8 and are in mesh with totalizer wheels 11 and punch selecting drums 13. In a simple embodiment each drum carries a series of helically-spaced punches which co-operate with a movable platen. In the embodiment shown, however, the drums are each provided with a series of helically-spaced recesses to co-operate with the upper ends 27 of a denominational group of levers 25 rockable about a shaft 26 and each provided at its lower end with a punch 42. Once in each machine operation, the punch levers are released by a cam-actuated bail 33 to the action of springs 28, that lever in each group which is in alignment with a recess in the selector drum being rocked clockwise to cause its punch to perforate a record strip 44. The part of the strip in which the perforations have been made is severed by a knife 50 and falls into a shoot 54 whence it is directed by one of a series of flaps 55 into a compartment 56 associated with the flap. The flaps are linked to bell cranks 59, the vertical arms of which extend into the paths of the punch levers 25 of one denomination by which the flaps are selected and actuated. The operative flap is restored by a bail 62 rotated during each machine operation.
Patent GB-1393409-A (GB)
Title: Hydraulic governor
IPC: G05D13/34
Filed: 1972-07-06
Abstract: 1393409 Change-speed control; valves BORGWARNER Ltd 6 July 1972 31774/72 Headings F2D and F2V An hydraulic governor metering line pressure 39 to provide three stages of speed-responsive governor pressure 40, for controlling three or four ratios of an automatic transmission, comprises a differentially-landed valve-spool 17 through which pass concentric stems 26, 33 of masses 25 and 31, 33 respectively, and on which act compression coil springs 29, 34 arranged between the respective masses 25, 33 and the valve-spool 17. During a first stage, centrifugal force on the valve-spool 17, on both masses 25 and 31, 33, and on the springs 29, 34, opposed by governor pressure 40 acting on differential lands 41, 42, moves the assembly outwards until the mass 31, 33 is arrested by a stop 35, whereafter the force of the spring 34 remains constant throughout a second stage which terminates when the mass 25 is arrested by contact of its stem 26 with the mass 31, after which the force of both springs 29, 34, is constant and regulation in a third stage is due to centrifugal force on the valve spool 17 alone opposed by line pressure 39 acting on the differential areas 41, 42.
Patent GB-905578-A (GB)
Title: Improvements relating to electric lighting fittings
IPC: F21V21/03
Filed: 1959-09-18
Abstract: 905,578. Supporting electric lamps. FANCY METAL GOODS Ltd., and LEITER, H. J. Dec. 19, 1960 [Sept. 18, 1959], No. 31799/59. Class 75 (3). [Also in Group XXXVI] An electric lighting fitting is suspended from a failing by a bayonet plug and socket coupling. A conduit 1, of the fitting, is screwed into a hole in the base of a cup 2 which is fixed to one end of a plug 3 with two pins 4 which engage bayonet slots 13 in a batten lamp-holder socket 11. To prevent inadvertent removal of plug 3 a screw 5 in plug 3 prevents turning of the plug until it is removed or until its head is screwed into a countersunk hole in the plug. Removal may alternatively be prevented by a spring clip (not shown) inserted into a bayonet slot. The end of the conduit 1 remote from the plug 3 is tapped and is engaged by a threaded tube (not shown) fixed to and projecting perpendicularly from a wiring housing 9 provided with tubular arms 10 having lamp-holders assembled to their outer extremities.
Patent GB-165012-A (GB)
Title: Tobacco pipes
IPC: A24F1/00
Filed: 1920-11-10
Abstract: 165,012. Hesson, W. W. Nov. 10, 1920. Tobacco pipes.-An inner tubular stem 15 is screw-threaded in the pipe stem at 13 and is connected to the mouthpiece 5 by a slidable non- rotary connection, such as a key and slot, or a flat, or a squared part 14 sliding in a squared socket 8, so that, on rotating the mouthpiece, the stem 15 is projected into, or withdrawn from, the bowl.
Patent GB-382768-A (GB)
Title: Improvements in pistons for internal combustion engines
IPC: F16J9/20
Filed: 1931-11-17
Abstract: 382,768. Pistons. MAHLE, E., 3, Rappweg, Stuttgart, Germany. Nov. 17, 1931, No. 31817. Convention date, Nov. 17, 1930. [Class 122 (i).] The packing rings and the working-surface of an internal-combustion engine, piston are protected from excessive heat by the use of a metal ring which reduces the play between the top of the piston and the cylinder but permits the gases to have access to the crown of the piston. The ring has a coefficient of expansion substantially less than that of the piston which may be of a light metal, a light metallic alloy, or made of grey cast iron. The ring a, Fig. 1, is secured to the piston by a sheet-metal strip f of the same material welded thereto. In a modification, the strip passes through the ring and is riveted thereto. In a further construction, the angle ring is incast with the piston. In the construction shown in Fig. 6, an incast ring a forms a carrier for a piston ring. In the construction shown in Fig. 7, a flat ring a is employed, and is secured by an expanding split ring g engaging a groove h in the top of the piston. The ring a may be incast. In a further modification, a T-shaped ring is incast. The ring is first open, is laid around the edge of the piston, and the ends are then welded together. A nickel-steel alloy ring with 40-42 per cent nickel is used in a grey cast-iron cylinder.