baber/WOPTO huggingface dataset:
Patent GB-596653-A (GB)
Title: Improvements in optical film-strip projectors
IPC: G03B23/12
Filed: 1944-12-15
Abstract: 596,653. Optical-projection apparatus. CLYNE, A. CORNWELL-, EALING, F. J., and DUFAY-CHROMEX, Ltd. Dec. 15, 1944, No. 25253. [Class 97 (i)] An optical film strip projector comprises a number of detachable units, viz. a lamp unit, a condenser unit, a film gate and film advancing unit and a projection lens unit which units together form a projection system which is detachable from a main housing. As shown, one unit comprises parts 39, 39a, also a tubular housing 36, attached to a plate 39b detachably secured to the front of the main housing. The part 39 supports the lamp unit which has horizontal and vertical screw adjustments for the lamp and an adjustable three-point mirror mounting. The condenser unit comprises a lens rotatably mounted in the housing 36 and secured to it the plate 37 which supports the remainder of the projection system. Guideways in the plate support a gate and film feeding unit as described in Specification 596,652. The plate also carries, at the side of the gate a forwardly extending bracket 38 to which is secured the projection lens unit consisting of the lens housing 12 and film magazines 13, 14 which may contain spools or by containers in which the film is loosely coiled. The main projector housing is provided with cooling fins for the lamphouse portion and ventilating apertures for cooling. A levelling screw is provided.
Patent GB-172385-A (GB)
Title: Improvements in apparatus for playing a game
IPC: A63B57/00
Filed: 1920-09-02
Abstract: 172,385. Ripley, J. T. Sept. 2, 1920. Outdoor games.-A device for use in playing a game with a golf ball and a golf club consists of a partition or target 1 cut away to hold a bell or the like 3, and a guard 4 to prevent the ball from rising too high. The ball is driven from tees 5. Instead of being two-sided as shown, the device may be one-sided.
Patent GB-1417987-A (GB)
Title: Device for sealing leaks in pipelines
IPC: F16L55/172
Filed: 1972-05-30
Abstract: 1417987 Repairing pipes PREMABERG (GREAT BRITAIN) Ltd 10 Aug 1973 [30 May 1972] 25303/72 Heading F2P A device for sealing a leak in a pipe P includes a pair of straps 1, 2 adapted to embrace the pipe P and means for drawing the straps 1, 2 towards one another so as to clamp a sealing gasket 3 between at least one of the straps 1, 2 and the pipe P, at least one of the straps 1, 2 having an aperture 1c therein for interchangeably receiving differently shaped plugs. As described the ends 1a 2a of the straps 1, 2 are curved to accommodate bars 7, 8, and bolts (not shown) pass freely through holes 7a in the bars 7 and are screwed into threaded bores 8a in the bars 8. The aperture 1c is formed in an outwardly bulged portion 1b of the strap 1 and receives a stepped plug 10 which applies sealing pressure to a continuous gasket when the straps 1, 2 are tightened or applies pressure on a sealing pad 4 (Fig. 4) located in an aperture in the gasket 3. The sealing pad 4 may be in the form of a disc with a bevelled edge and a lip 4a as shown in Fig. 4 or may be in the form of a shallow cone (not shown). The plug 10 and cone-shaped sealing pad may be provided with holes for receiving a locating pin (not shown). In a modification (not shown) the plug 10 includes a nipple through which sealing material may be injected into the space between the strap 1 and a continuous gasket, the flow of the sealing material being limited by a cage of rubber or metal located between the strap 1 and gasket or formed integrally with the strap 1.
Patent GB-985661-A (GB)
Title: Improvements relating to a symbol displaying device
IPC: G09B1/20
Filed: 1960-07-20
Abstract: 985, 661. Symbol displaying devices; educational appliances. H. R. SAVAGE. July 20, 1961 [July 20, 1960], No. 25346/60. Headings G5C and G5G. A device for use in selecting combinations of signals for crossword puzzles &c. comprises seven cylindrical members 13 supported on discs 15 which closely fit a shaft 11 journalled in bearings in a housing 6 with a windowed aperture 9. Each member 13 carries symbols 18 and rotates when the shaft 11 is turned except when grooves 19 in the periphery are engaged by a spring 21 which is moved into position by a lever 25 projecting through the housing. A spring ball catch 29 mounted on a boss 32 on the shaft 11 rotates with the shaft and co-operates with depressions 28 in each member 13. In alternative embodiments the supporting discs 15 may be replaced by radial arms carrying flanged wheels for co-operation with the members 13.
Patent GB-1147673-A (GB)
Title: Improvements in or relating to closure members, for example, door leaves and window sashes
IPC: E06B3/54
Filed: 1966-06-08
Abstract: 1,147,673. Locating panes or panels in sashes or frames. HEINZ SCHURMANN & CO. 8 June, 1966 [27 July, 1965], No. 25440/66. Heading E1R. A pane or panel 2 is located in a sash or frame 1 by a number of chocks e.g. 6, 7, which can be adjusted by grub screws from outside the sash. Each chock may comprise a grub screw acting on a block, e.g. 10 having an integral projecting pin 8 (Fig. 2), or on a movable one 27 of a pair of wedges (Fig. 9), which may have currugated co-acting surfaces, or on a channel-sectioned member 13 (Fig. 4, not shown), with a threaded bore in the web of the member, or directly on the base of a channel-sectioned member 15 (Fig. 5, not shown), or on a T-sectioned member 17 (Figs. 6, 7, not shown) with a threaded bore in its stem, and fillets which engage in slots in the frame, or between the flanges of a U-shaped member 22 (Fig. 8, not shown), the flanges being generally parallel to the frame, and the outer flange having an L- shaped extension with a threaded bore therethrough, or a second grub screw 33 (Fig. 10, not shown) acting directly on a block.
Patent GB-287411-A (GB)
Title: Improvements in blade holders for safety razors and blade stropping mechanism
IPC: B26B21/50
Filed: 1927-02-01
Abstract: 287,411. Heide, H. C., (Auto Strop Patents Corporation). Feb. 1, 1927. Razors, safety. A razor blade 1 is clamped to a holder 3 of a shaving or stropping mechanism by pivoted arms S. The blade 1 has apertures 1<a> forming projections 1<b> the latter engaging positioning projections 10 on the arms 8 when the latter are in the non-clamping position, Fig. 2. In the clamping position, Fig 3, the projections 10 are out of engagement with the projections 1<b>. The blade holder 3 and blade 1 have additional registering projections and apertures 4, 2 respectively.
Patent GB-601411-A (GB)
Title: Improvements in or relating to tractors having endless tracks
IPC: E02F9/02
Filed: 1945-10-02
Abstract: 601,411. Excavators. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. (International Harvester Co.). Oct. 2, 1945, No. 25582. [Class 68 (i)] [Also in Group XXXI] In a tractor propelled by endless treads, the drive gears 22 of the treads are mounted on anchored coaxial bearing sleeves 47 in which a transverse rod 49 is mounted, the end portions of the rod being tapered or reduced cylindrically so as to be spaced from said sleeves so that displacement of said end portions under a transverse load strain may be permitted without displacing said sleeves and gears. Two part ball-members 53, 55, are held to the ends of rod 49 and are each engaged by a two-part socket 56, 57, supporting a channel 73 in which is pivoted a side member 76 supporting a bulldozer &c. blade. A stone guard 59, dust guards comprising opposed pairs of flanged rings 62, 63, and 69, 71 and grease seals 65, 68, are provided.
Patent GB-706408-A (GB)
Title: Improvements in and relating to shuttles for looms for weaving
IPC: D03J5/00
Filed: 1950-10-20
Abstract: 706.408. Loom shuttles. MASCHINENFABRIK RUTI AKT.-GES., VORM. C. HONEGGER. Oct. 20, 1950 [Oct. 22, 1949], No. 25590/50. Addition to 640,200. Class 142(2) The shuttle of the parent Specification and in which one side moves resiliently with respect to the other side has the sides of the cavity 4 of arcuate form to accommodate the head of a round bobbin. The opposite sides of the shuttle are drawn together to grip the bobbin by a rubber cord. The cavity has chamfered edges 8 to facilitate bobbin insertion and is also provided with projections 11 to ensure that an exhausted bobbin will fall clear of the shuttle when a full bobbin is inserted. The bobbin may be inserted automatically or by hand and may be of the same material as the shuttle. A spiral threading device may be fitted.
Patent GB-1330729-A (GB)
Title: Method for recording in hardened gelatin
IPC: G03C5/315
Filed: 1971-04-19
Abstract: 1330729 Photographic process INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [1 June 1970] 25603/71 Heading G2C A hardened gelatine photographic recordis prepared by (1) forming a silver image in a gelatine film by exposing, developing and fixing a silver compound photographic emulsion, (2) converting the silver into a silver salt, (3) hardening the gelatine in the non-image areas, and (4) removing the silver salts and unhardened gelatine from the film, in which steps (2) and (3) can be effected in either order and step (3) is effected without using a tanning bleach or tanning developer. Specifically, a silver halide emulsion is stress-relieved in a high humidity atmosphere, exposed, pre-hardened, developed, stopped and fixed; the image-bearing emulsion is then bleached and hardened ( in either order) and the silver salts formed removed in a fix bath. The hardening is effected only in the silver-free areas by either (a) treating with a dichromate, exposing to long-wave U.V. and treating with bisulphite to remove dichromate, or (b) exposing to short-wave U.V. The processed emulsion may be washed with a wetting agent solution and dried in alcohol baths. The process is especially for making volume phase holograms.
Patent GB-481903-A (GB)
Title: Improvements in or relating to radio aerial systems
IPC: H01Q21/26
Filed: 1936-09-21
Abstract: 481,903. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 21, 1936, No. 25633. Convention date, Sept. 20, 1935. [Class 40 (v)] A short-wave transmitting aerial, radiating uniformly in the horizontal plane, comprises two " crossed " transmission wires 19 and 21, Fig. 1, arranged vertically. Each carries a series of transverse radiators 29, which are energized in phase-quadrature, the desired phase-adjustment being ensured by a quarterwave coupling 15 between the two transmission lines, and the common high-frequency source 1. Fig. 3 shows how the two series of antennae are mounted on a common mast 41. The antennµ are shown at 45, but only one, 47, of the four leads forming the two feeders. These are " crossed " over standoff insulators 49. The antennµ are spaced vertically by a half wavelength, the length of each section of feed-line being slightly longer. The efficiency of the arrangement is stated to be higher than a vertical halfwave aerial, or than a series of half-wave sections separated by " suppressed " halfwave sections, and is economical to instal.
Patent GB-518778-A (GB)
Title: Improvements in or relating to sheet-metal drums and like containers
IPC: B65D25/42
Filed: 1938-09-02
Abstract: 518,778. Metal drums &c. BLUNDELL, SPENCE, & CO., Ltd. and LONGSTAFF, W. D. Sept. 2, 1938, No. 25666. [Classes 21 and 66] The central portion of the end 2 of a metal drum &c. is dished or recessed so that when the container is inverted the contents are caused to flow towards the pouring outlet 4, the formation affording a complete marginal channel 5 communicating with a channel 6. surrounding the outlet.
Patent GB-707205-A (GB)
Title: Adjusting device for the selector mechanism of printing telegraph apparatus
IPC: H04L17/18
Filed: 1952-10-14
Abstract: 707,205. Printing-telegraph receivers. TELETYPE CORPORATION. Oct. 14, 1952 [Nov. 16, 1951], No. 25726/52. Class 40 (3) A device for adjusting the selector mechanism of printing-telegraph apparatus so that its operation is appropriately timed with respect to the times of arrival of the telegraph signal impulses comprises an adjustable outer member, arranged to vary the timing of the operable elements relative to the arrival of the signal impulses, provided with an internal gear having a predetermined number of teeth adapted to co-operate with a predetermined number of teeth on a fixed inner member in such a manner that a plurality of opposed pairs of teeth disposed at uniformly spaced intervals around the outer and inner members are caused to mesh with each other in interlocking engagement in each adjusted position of the outer member with respect to the inner member. The invention is applied to a selector mechanism generally similar to that described in Specification 676,825 in which the armature 12 of the receiving magnet 11 is locked in its marking position by a shoulder 21 on a lever 16 and a surface 23 on a lever 15, and in the spacing position, between a shoulder 19 on the lever 15 and a surface 25 on the member 16. The end of the arm 43 of a release lever 44 is associated with the armature 12 and carries an arm 46 with an upstanding projection 47 engaging in an arcuate slot 48 in an arm 49 of a start-stop lever 51 pivoted at 52 and formed with a second arm 54 carrying a projection 55 engaging a tooth 56 on a stop disc 37 secured to the shaft 27 carrying the assembly of cams effecting the timing of the elements of the selector mechanism. In the stop position, the upper end of the lever 43 is blocked by the end of the attracted armature 12, but the start impulse releases the arm so that the lever 44 acting through the projection 47 with the projection 57 on the arm 49 opposite a recess 58, rocks the projection 55 on the arm 54 clear of the tooth 56 on the stop disc. The start-stop arm 51 is mounted on an apertured plate 53 carried by studs 79, 81 on a fixed plate 75 and is adjustable concentrically of the shaft 27 by a rack 73 meshing with a gear 94, Fig. 2, on a rotatable part of the adjusting device, denoted generally by the reference 74. The fixed part of the device comprises a threaded part 84, shank 85 and shoulder portion 86 carrying an externally toothed gear wheel 87. The rotatable part is mounted on a spacing ring 91 and on the shank 85 and is urged by a spring 93 against the shoulder 86 and carries internal teeth engaging, at spaced intervals, the external teeth 96 on the shoulder 86. The rotatable part also carries a gear wheel 94 meshing with the rack 73 on the plate 53. To effect the adjusting operation, the knob 82 is pushed inwardly against the compression spring 93 to disengage the teeth 95, 96 and after rotation, indicated by the scale divisions 99, is allowed to move outwardly so that different pairs of teeth engage to lock the device in the adjusted position.
Patent GB-1177699-A (GB)
Title: Milling Cutter
Inventor: GREENLEAF WALTER J
IPC: B23C5/20
Filed: 1967-06-05
Abstract: 1,177,699. Milling cutters. W. J. GREENLEAF. 5 June, 1967 [18 July, 1966], No. 25822/67. Heading B3K. A milling cutter has a series of roughing cutter bits disposed around the axis of the cutter and at least one finishing cutter bit having a slightly crowned cutting edge which protrudes in the axial direction of the cutter. The roughing bits are triangular and are supported on a nest member 6, Fig. 5, while the finishing cutter bit is of generally square shape, e.g. bit 30, Fig. 7, and is supported by a correspondingly shaped nest 6a.
Patent GB-660595-A (GB)
Title: Improvements in the regulating of spring hammers
IPC: B21J7/12
Filed: 1948-10-04
Abstract: 660,595. Power hammers. ROUCKA, E. Oct. 4, 1948 [Oct. 4, 1947], No. 25831/48. Class 83 (iv). A method of regulating the blow of a spring hammer, the actuating mechanism of which contains a rocking lever 5 coupled to the drive and to the tup at two connecting points B, A, Fig. 1, is characterized by the feature that regulation is effected by variable limitation of the oscillation of a third supporting point 7. The beam fulcrum 7 is supported by a piston rod 9 carrying a piston 10, the cylinder spaces above and below said piston being connected through an adjustable throttle 14. In the closed throttle position, piston 10 is immovable and the beam rocks about the fulcrum 7, the tup 6 having its maximum stroke. With the throttle fully open, the piston moves freely and since the tup is relatively heavy, the beam oscillates about the tup-end A as fulcrum, the tup remaining substantially stationary. In a modification, Fig. 2, the beam pin is supported by a piston and rod 17, 16, the cylinder 18 being controlled by slide valves 20, 38 in communication with a fluid container through channels 27, 39 and non-return valves 25, 26. The slide valves carry racks 28, 37, engaging with wheels 29, 35, coaxial with wheels 30, 34 engaging racks 32, 33 rigidly connected to the piston rod 16. The wheels 29, 30 and 35, 34 are carried on displaceable members 31, 36 respectively. In operation, if the valve 20 be moved downwards by means of the control member 31 the piston and rod may move downwards. Simultaneously the valves 20 and 38 will rise until the valve 20 reaches its neutral position, when downward movement of the piston is stopped because the liquid beneath it has no outlet. Upward movement is possible because the fluid above the piston may escape through the now open channel 40. The piston 17 therefor oscillates within limiting positions determined by the positions of the control parts 31, 36. If these are coupled by a lever pivoted at a point midway between its ends so that the parts 31, 36 are moved equidistantly in opposite directions the stroke of the piston will be varied but the neutral position is unaltered if the pivotal point is not moved. The pivotal point may however be adjustable in the same direction as that of the adjustment of the control parts, it then being possible to vary the neutral position of the piston to suit work of different thicknesses.
Patent GB-1170040-A (GB)
Title: Improvements in or relating to Dial-Operated Data Transmission Networks
IPC: H04L12/22
Filed: 1968-05-30
Abstract: 1,170,040. Digital transmission systems. SIEMENS A.G. 30 May, 1968 [31 May, 1967], No. 25905/68. Heading H4P. In an exchange system signals are accompanied by class signals indicative of the priority, speed, terminal equipment, or network, i.e. the group in which a subscriber lies. Terminal and network class signals are evaluated after development of a connection within the originating or destination exchange, but priority and speed class signals are evaluated during development of the connection. If a subscriber calls a subscriber who is restricted to reception only from certain subscribers, after connection to the called subscriber has been developed, one subscriber sends to the other a network class signal. This is compared at the exchange associated with the latter subscriber with the class signal of the former, and only if there is agreement is the connection switched through. If there is no restriction on the called subscriber, no class signals are sent. If a calling subscriber is restricted in the subscribers which he may call his network class signal is transmitted from his local exchange to the destination exchange, via any other exchanges, prior to the transmission of dialling signals. Priority signals, i.e. signals indicating whether a connection must wait for a free line or can break in to an existing connection are evaluated in each exchange as the connection is developed. If, for a given speed of line, no such line is available at an exchange, calls are routed through a higher speed line and a speed signal is added so that at a subsequent exchange a line of the original speed is selected.
Patent GB-443845-A (GB)
Title: Improvements in or relating to letter sorting apparatus
IPC: B07C3/00
Filed: 1934-09-10
Abstract: 443,845. Distant - control systems. HUDSON, W. E., General Post Office, Alder House, London. Sept. 10, 1934, No. 25956. [Class 40 (i)] [See also Group XVIII] In a letter-sorting apparatus, the course of a letter is determined by depressing a number of keys in succession, each key marking a combination of leads Z-V, Fig. 1b, to operate a corresponding series of relays in a free group E, determined by the hunting switch DD. These relays operate a chain circuit to mark a switch A which, in combination with a selector switch B operates circuits energizing selected magnets P, Figs. 1b and 3, to set trip members 4 on receptacles 5 in which the letters are conveyed, the destination of the receptacles being determined by the setting of the trip members. According to a modification, the course of a letter is determined by the simultaneous operation, or the operation in any order of the selected group of keys. In this modification, the actuation of the keys marks the bank contacts of a switch A which hunts for the marked contacts and, when stopped, completes the circuits of the selected magnets P.
Patent GB-603256-A (GB)
Title: Process of manufacture of glycol
IPC: C07C29/10
Filed: 1945-10-05
Abstract: Ethylene glycol is prepared by the hydration of ethylene oxide in the presence of a trihalogenoacetic acid which is subsequently removed from the reaction product by thermal decomposition.  In an example, ethylene oxide is hydrated at about 60 DEG  C. in the presence of trichloroacetic acid which is subsequently decomposed into chloroform and carbon dioxide by heating at 100 DEG  C., and p  ethylene glycol is separated from di- and triethylene glycol by fractional distillation.  The Specification as open to inspection under Sect. 91 states that the hydration may be effected in the presence of any organic acid which can be decomposed at a temperature above the hydration temperature of ethylene oxide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1145934-A (GB)
Title: Access for the preparation of pyrazinoyl- and pyrazinamido-guanidines
Inventor: POLLAK PETER IMMANUEL
IPC: C07D241/30
Filed: 1967-06-07
Abstract: 1,145,934. (3,5-Diamino-6-chloro-pyrazinoyl and -pyrazinamido)-guanidines. MERCK & CO. Inc. 7 June, 1967 [25 Aug., 1966], No. 26217/67. Heading C2C. (3,5 - Diamino - 6 - chloro - pyrazinoyl and -pyrazinamido)-guanidines of the general formula wherein R<SP>1</SP> and R<SP>2</SP>, which are the same or different, are hydrogen, C 1-5  alkyl or phenyl-C 1-5  alkyl; R<SP>3</SP> is hydrogen, C 1-5  alkyl, hydroxy- C 1-5  alkyl, pyridyl-C 1-5  alkyl, phenyl-C 1-5  alkyl, halophenyl-C 1-5  alkyl, (C 1-5  alkyl-phenyl)-C 1-5  alkyl or (C 1-5  alkoxy-phenyl)-C 1-5  alkyl; R<SP>4</SP> is hydrogen, C 1-5  alkyl, phenyl-C 1-5,  alkyl, halophenyl-C 1-5  alkyl, (C 1-5  alkylphenyl)-C 1-5  alkyl or (C 1-5  alkoxy-phenyl)-C 1-5  alkyl; or R<SP>3</SP> and R<SP>4</SP> are linked together to form, with the nitrogen atom to which they are attached, a group having the formula wherein x is 4, 5, 6 or 7; R<SP>5</SP> is hydrogen or C 1-5  alkyl; or R<SP>4</SP> and R<SP>5</SP> are linked together to form an ethylene or trimethylene radical; and n is 0 or 1; and acid addition salts thereof are prepared by reaction of a (3,5-diamino-pyrazinoyl or -pyrazinamido)-guanidine of the general formula with chlorine, followed by optional conversion of the product to an acid addition salt thereof. (3,5 - Diamino - pyrazinoyl or - pyrazinamido)-guanidines of the second general formula above are prepared by reaction of a C 1-5  alkyl ester of a 3-amino-5-NR<SP>1</SP>R<SP>2</SP>-pyrazinoate with a guanidine or aminoguanidine of the general formula
Patent GB-1529039-A (GB)
Title: Platform structure for maritime installations
IPC: E02B17/02
Filed: 1977-06-23
Abstract: 1529039 Offshore platforms COMPAGNIE GENERALE POUR LES DEVELOPPEMENTS OPERATIONNELS DES RICHESSES SOUS MARINES C G DORIS 23 June 1977 [24 June 1976] 26243/77 Addition to 1464162 Heading E1H An offshore platform comprises a coffered base 1, Fig. 1, a watertight central barrellike structure 2, and pillars 6 which support a bridge 3, the dimensions being such that the structure is buoyant. The top of a protective wall 4 lies below the water surface. The pillars are braced by rings and struts and the pillars are filled with concrete when the platform is in place. The structure 2 may taper towards the base, Fig. 3 (not shown). For Figure see next column