baber/WOPTO huggingface dataset:
Patent GB-919138-A (GB)
Title: Variable focal length objective lens mounting
Inventor: KAISER EGON
IPC: G02B7/10
Filed: 1961-01-11
Abstract: 919,138. Variable focal length lens mounts. KAMERAUND KINOWERKE DRESDEN VEB. Jan. 11, 1961, No. 1181/61. Class 97 (1). A variable focal length lens mount contains two relatively movable lens components each of which supports diametrically opposed bearing pins 3a, 3b, which are movable in slots in the lens housing, these slots extending parallel to the optical axis. The pins 3a, 3b project into slots 7, 8 respectively, in members 6 which are disposed on either side of the lens housing and are pivoted on spindles 5 extending perpendicularly to the optical axis. Parallel to these spindles 5 is a further spindle 9 which carrier at each end thereof a member 11 having grooves 12a, 12b, which are also engaged by the pins 3a, 3b, respectively. By operating a lever, spindle 9 is rotated so as to effect via the grooves in the members 11 and the slots in the members 6 relative movements of the two components so as to vary the equivalent focal length of the objective.
Patent GB-538122-A (GB)
Title: Improvements in automatic telephone exchange and like switches and in multiplying arrangements therefor
IPC: H01H63/06
Filed: 1940-01-19
Abstract: 538,122. Selectors. STANDARD TELEPHONES & CABLES, Ltd. (Bracke, O. J., and Lens, G. X.). Jan. 19, 1940, No. 1189. [Class 40 (iv)] A continuous strip from which terminals and soldering tags project at intervals is formed by punching and deforming a metal sheet and is wound helically on to a grooved former shaped as shown and made of wood impregnated with uncured thermo-setting synthetic resin. A switch bank is built-up from several such wound formers interleaved with unwound strips of impregnated wood, the whole being heated under pressure. Several ways of punching the sheet are illustrated. Specification 521,004 is referred to.
Patent GB-121387-A (GB)
Title: Improvements in Explosion Turbines.
Inventor: JOHN WESLEY ERNEST
IPC: F02C5/12
Filed: 1918-01-22
Abstract: 121,387. John, W. E. Jan. 22, 1918. Woking-finid sitpply.-The stator 8 of an interral-combustion turbine has a number of combustion chambers 9 - - 9f provided at one end with nozzles 11 discharging on to the rotor blades 5. and at the other end with ports registering with charging-pockets 7 - - 7e in a member 6 secured to the rotor shaft 3. A carburettor 15, supplied with air from a pump 18 and with fuel from a pipe 16, delivers the motive fluid to a stator duct 12 which supplies the charging-pockets 7 - - 7e through passages 24. The charge is fired when a pocket registers with a combustion chamber, and a scavenging-charge of air or water, or both, is subsequently blown through the pocket, entering by a stator port 27 and escaping by a stator exhaust port 28 communicating with the atmosphere or with the rotor blades. The scavenging- air for the ports 27 may be supplied by a branch pipe 26 from the air-pump. The charging-pockets and combustion chambers may differ in number as shown, and the charging-member 6 may run at a lower speed than the rotor 5. The arrangement may be such as to obtain a number of explosions simultaneously at symmetrical positions on the face of the stator. If applied to an aeroplane, the pressure supply is drawn from the front of the machine, and the exhaust used to assist propulsion or lift of the aircraft. The stator may be made the rotor, and the rotor the stator.
Patent GB-606394-A (GB)
Title: Improvements in printing unit and drive mechanism therefor
IPC: B41F13/00
Filed: 1946-01-14
Abstract: 606,394. Printing-machines. GOSS PRINTING PRESS CO., Ltd. Jan. 14, 1946, No. 1271. Convention date, Jan. 12, 1945. [Class 100(ii)] A rotary printing-press unit 10 is constructed, to permit of easy accessibility to the inking-apparatus, of a pair of printing- couples 11, 12, Fig. 4, each comprising a printing-cylinder 14, 15 and impression cylinder 16, 17, Fig. 3, arranged in side by side relationship, a horizontal driveshaft 30 arranged transversely beneath said couples and a pair of vertical shafts 31 laterally spaced with respect to each other for gearing the printing-cylinders to the shaft 30. The shafts 31 are mounted in bearings in frames 27 of arch form arranged to leave a space 29 for the operator, and the inking-rollers are mounted in the frames 27, and are driven from the shafts 31. The printing-cylinders 14, 15 are geared by spur gears 36, 37 to the impression cylinders 16, 17, and adjustment of printing pressure is effected by the adjustment of eccentric bearings in which the impression cylinders are mounted, which adjustment can be made without producing faulty register by mechanism as described in Specification 434,864. The shaft 30 is driven by chain gear from motors 49, 49a and the unit 10 may be coupled to an adjoining unit 10a for synchronizing the drives. The couple 11 is reversibly driven to permit the unit to be used for perfected or multi-colour impressions, its drive shaft 31 having a bevel gear 32 engaged by bevel gears 33, 33a either of which can be driven as desired by a sliding clutch operated by a lever. The clutch can be put to a neutral position, and the bevel gears 33 for driving the couples 11, 12 act through a clutch which can throw out the drive to the couple 11 or 12, so that either couple can be used alone. The inking-rollers are mounted in the frames 27, and comprise duct rollers 23, reciprocating distributing rollers 20, 21, and transfer rollers. The rollers 20, 21, are reciprocated longitudinally by means of oscillating levers 81, 82 actuated by eccentrics 77, 78 driven by bevel gearing 72, 73 from the shafts of the printing-cylinders. The fountain rollers 23 are driven by worms 100 on the shafts 31 and worm gearing To adapt the roller 23 associated with the reversible couple to change of drive, two worm wheels 101, 101a are geared to the worm 100 and each worm wheel is connected to the roller by a uni - directional clutch, so that when the shaft 31 is reversed the drive is transferred from one driving train to the other. Specification 435,030 is referred to.
Patent GB-240693-A (GB)
Title: Improvements in and relating to artificial fishing flies
IPC: A01K85/08
Filed: 1925-01-15
Abstract: 240,693. Ryan, R. S. Jan. 15, 1925. Artificial flies.--An individual fibre from a bird's feather is cut to represent an insect's wing a, a portion of the fibre stem d being left bare for binding to the body of the fly or to the hook e. The wing may be dyed if necessary. When great strength is necessary the wing may consist of two or more fibres placed one behind the other.
Patent GB-659307-A (GB)
Title: Improvements in methods of and apparatus for forming tubes or pipes
IPC: B21C37/08
Filed: 1949-01-18
Abstract: 659,307. Making longitudinally-jointed tubes. FORT PITT BRIDGE WORKS. Jan. 18, 1949, No. 1375. Convention date, Jan. 23, 1948. [Classes 83 (ii) and 83 (iv)] Angular bending; uniting by fusion.-A longitudinally seamed tube is made by bending the marginal edge 22 of a strip to cylindrical form between dies 19, 21, then bending the opposite edge in the same dies and finally bending the centre to form an open seamed tube which is stripped axially from the die 19. The die 21 freely supports the strip prior to each bending operation. The seam may be welded by continuous electrical or other seam welding apparatus of known form. The die 19 is attached to a holder by a thin neck 201 and bends a third of the tube at each operation. The press used may be as set forth in Specification 572,845.
Patent GB-395039-A (GB)
Title: Improvements relating to hot water storage tanks for use particularly in domestic hot water supply systems
IPC: F24H1/18
Filed: 1932-01-18
Abstract: 395,039. Preventing corrosion. CARNEY, H. A., 70, Warwick Square, London. Jan. 18, 1932, No. 1409. [Class 123 (i).] A hot-water storage tank comprises a metal container with an internal coating of non- hygroscopic poor heat-conducting material such as an artificial resin, the material having substantially the same coefficient of expansion as the container. The casing may be provided with an external coating of the same or similar material. An anti-corrosive coating may be applied to the inside of the tank either before or after the application of the non-conducting coating. In an alternative construction, the container may be formed of the poor heatconducting material reinforced by metal of substantially the same coefficient of expansion. Specifications 258,908, [Class 123 (i), Liquidlevel regulating &c.], and 292,334, [Class 1 (i), Chemical processes &c.], are referred to.
Patent GB-932223-A (GB)
Title: Random access memory bistable elements
IPC: G11C11/38
Filed: 1962-01-15
Abstract: 932,223. Matrix stores. BENDIX CORPORATION. Jan. 15, 1962 [Jan. 23, 1961], No. 1452/62. Class 106 (1). A matrix store comprises, at each intersection of lines A-F and J-N a bi-stable element of a tunnel diode in series with a resistor, and switching of a selected element is effected by equal pulses of opposite sign applied to its row and column lines through switches 24 and 40 via transformer 23, 39, a single pulse being insufficient to switch its operating point. The reading of an element is by switching it to the " 0 " state; if previously at " 1 " the change of current will produce a signal in line 42 while otherwise the smaller current changes in unswitched elements will cancel in transformers 36 J-N.
Patent GB-822072-A (GB)
Title: Improvements relating to means for applying coolant during grinding operations
Inventor: AULT FREDERICK GEORGE
IPC: B24B55/02
Filed: 1957-01-15
Abstract: 822,072. Grinding. SALTER & CO. Ltd., G. Sept. 18, 1957 [Jan. 15, 1957], No. 1457/57. Class 60. Means for applying liquid coolant to grinding wheels during the operation of grinding workpieces comprises a device having a body part associated with a work-supporting surface and provided with an internal main coolant supply passage and upwardly-inclined branch passages leading therefrom for conducting the coolant liquid to the peripheral grinding face of the wheel, the outlet apertures of the branch passages being disposed below the level of the work-supporting surface and within upwardlyextending channels in the side face of the body part directly opposed to the peripheral grinding face of the wheel, whereby the liquid coolant can be guided so as to form a liquid pool adjacent the point of grinding. A workpiece 3 being ground by a grinding wheel 2 is supported on a work rest built up from alternate coolant supply plates 16 and spacing plates 17 ; the plates are screwed together by clamping rods 9, and each plate has a central aperture. A tube 13 connected to a source of coolant extends through the aligned apertures and has ports communicating with slots 6 in the coolant supply plates 16 ; the latter have inclined front and top faces 18, 21. The spacing plates 17 have inclined front faces 19 and horizontal top faces 22 so that channels are formed between the spacing plates 17 extending around the coolant supply plates 16. To extend the work rest beyond the grinding wheel, spacing plates 25 are used, similar to the plates 17 but of greater width.
Patent GB-436583-A (GB)
Title: Improvements in or relating to spraying apparatus
IPC: A01G25/14
Filed: 1934-01-15
Abstract: 436,583. Garden and crop sprayers. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Wibmer, M. D.; Yong Tong Tea Estate, Matelli P.O., Dooars, North Bengal, India) Jan. 15, 1934, No. 1473. [Class 6 (ii)] [See also Group XXVIII] A spraying-apparatus comprises a rigid container with flexible means for containing the liquid to be sprayed and also compressed gas for discharging the liquid, the apparatus being charged through a valve - controlled inlet, and the liquid then discharged through a valve-controlled outlet, means being provided to prevent the gas escaping when the liquid is discharged. The Figure shows a knapsack sprayer comprising a metal casing A containing a flexible casing B into which air and liquid may be forced through a passage J controlled by a valve J<2>, a float valve E<2> allowing liquid to enter the casing B. On opening a cock liquid is discharged through the passage H until the float-valve E<2> rests on its seating thus preventing escape of air. In modifications the apparatus comprises an outer rigid casing and two inner flexible bags either of which may be filled with liquid while the other is filled with compressed air through a non-return valve.
Patent GB-523851-A (GB)
Title: Improvements in mechanical sound recording and reproduction
IPC: G11B3/00
Filed: 1939-01-16
Abstract: 523,851. Sound recording and reproducing apparatus. DANIEL, K. Jan. 16, 1939, No. 1489. Convention date, Jan. 17, 1938. [Class 40 (ii)] In a stylus machine for recording sound on or for reproducing from a film strip, irregularities in. the movement of the film are prevented by providing a braking device exerting on the margin of the film, in front of the recording or reproducing position, a braking effect greater than the maximum braking effect produced by the stylus. As shown in Figs. 5 and 6, the brake 21 has runner-shaped felt strips 24 adjustably pressed against the margins of the film 17 where the film is supported by a back plate 22.
Patent GB-1037131-A (GB)
Title: Cross-linked polymers and process for preparing them
IPC: C08F18/04
Filed: 1964-01-13
Abstract: Cross-linked polymers are manufactured by a process wherein an unsaturated polymerizable keto compound is homopolymerized or copolymerized with at least one other unsaturated compound in aqueous emulsion in the presence of a water-soluble or oil-soluble catalyst and an ionic or non-ionic emulsifier and/or water-soluble polymeric protective colloid and the resulting polymer or copolymer is subsequently cross-linked with a polyfunctional carboxylic acid hydrazide.  Specified keto compounds are the vinyl and allyl esters of keto acids such as pyruvic, acetoacetic, levulinic, g ,g -dimethyl-d -keto - caproic, methylene - acetoacetic and ethylidene acetoacetic acids; vinyl methyl ketone and vinyl ethyl ketone. Specified comonomers are vinyl esters of acetic, propionic, butyric and valeric acids; C1- 10 alkyl esters of acrylic, methacrylic, maleic and fumaric acids; optionally together with styrene, vinyl chloride, ethylene, propylene and isobutylene.  Specified catalysts are hydrogen peroxide and alkali metal persulphates, optionally together with sodium bisulphite or sodium formaldehyde sulphoxylate. Specified emulsifiers are sodium lauryl sulphate, sodium alkylbenzene sulphonates, sodium oleate, sodium stearate, benzyl trimethyl ammonium sulphate, stearyl benzyl dimethyl ammonium sulphate and condensates of ethylene oxide with nonyl phenol and oleyl alcohol. Specified protective colloids are polyvinyl alcohol, hydroxyethyl cellulose, carboxymethyl cellulose, hydroxyethyl-carboxymethyl cellulose, sodium alginate, gum arabic, starch derivatives, and sodium polyacrylate. Specified hydrazides are the dihydrazides of C2- 10 aliphatic dicarboxylic acids and the phthalic acids, hydrazides of tri- and tetracarboxylic acids and of polyacrylic acids. The polymers may be used in paints and adhesives and for treating textiles, paper and leather.  Examples describe the cross-linking with adipic acid dihydrazide of copolymers of allyl acetoacetate and (1 to 4) vinyl acetate, (5 and 6) vinyl acetate and butyl acrylate, and (7) vinyl acetate and dibutyl maleate and of copolymers of vinyl acetate and (8) allyl levulinate and (9) allyl g ,g -dimethyl-d -ketocaproate in the presence of sodium dodecylbenzene sulphonate, sodium vinyl sulphonate, acetic acid, sodium acetate and potassium persulphate.
Patent GB-844417-A (GB)
Title: Warp beams and means for packing thereof
Inventor: SCHOFIELD GEORGE WILLIAM
IPC: D02H13/28
Filed: 1958-01-16
Abstract: 844,417. Warp beams. BRITISH NYLON SPINNERS Ltd. Jan. 6, 1959 [Jan. 16, 1958], No. 1518/58. Class 142(2). [Also in Group XVII]  A warp beam consists of a steel barrel 1 with strips 3 welded across its ends, on which end plates 5 carrying stub axles 11 are attached by screws 7. For transit, the end plates are reversed (as shown) so that the stub axles are housed inside the barrel. The yarn 13 wound on the beam is wrapped first with polythene sheet 15 secured by adhesive tape 17, then with corrugated fibre board 19. An outer cover 21 of doublefaced corrugated fibre board or galvanised steel sheet is secured by steel straps 29; the ends of the outer cover are turned down at 21a and clamped by a wooden flange 23, a wooden or woundpaper sleeve 27, and a wooden disc 25 held in place by the end plate 5.
Patent GB-1412532-A (GB)
Title: Antimicrobial agent
IPC: C02F1/50
Filed: 1973-01-11
Abstract: 1412532 Paints containing an antimicrobial agent BAYER AG 11 Jan 1973 [13 Jan 1973] 1518/73 Headings C4A and C5F [Also in Division A5] A method of preserving an aqueous system from microbial attack comprises adding 3- methylol - 2 - thiono - 2, 3 - dihydrobenzthiazole. The aqueous system may be an emulsion paint.
Patent GB-480821-A (GB)
Title: Improvements relating to thermal switches or safety devices for use on low voltage circuits
IPC: H01H37/76
Filed: 1937-01-19
Abstract: 480,821. Fusible cut-outs. LANDIS & GYR AKT.-GES. Jan. 19, 1937, No.1585. Convention date, March 14, 1936. [Class 38 (i)] A safety cut-out adapted to open the circuit when a consuming device overheats .comprises a flexible conductor 4 connected at its ends to a spring 5, the lower ends of the conductor and spring being connected to the conducting cap 3 and their upper ends being held by fusible material 6 to. the cap 2 of a cartridge-like container 1. A circuit is thus normally completed.. When overheating due to radiation or conduction from the consuming apparatus occurs, the material 6 melts and the spring 5 pulls the conductor 4 down breaking the circuit. The material 6 may be Wood's metal. In a modification the upper ends of the conductor 4 and spring 5 are fixed to a plate fixed by fusible material to the cap 2. Specification 460,411 is referred to.
Patent GB-574470-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B60J10/00
Filed: 1944-01-28
Abstract: 574,470. Draught excluders. PRESSED STEEL CO., Ltd., and SPEED, E. Jan. 28, 1944, No. 1607. [Class 20 (iii)] [Also in Group XXXII] A vehicle body having openings therein such as door, window, roof and trunk openings, on which one or all of said openings or the closure member or members therefor are fitted around their entire peripheries, or at least the sides thereof not supporting or carrying a hinge member, with a resilient channel or like form member serving the dual purpose of a seal and a water drain channel. As shown in Fig. 1, the boot lid 13 is provided with a combined seal and drain 20 of rubber or resilient material secured to the lid by a channel 22 and bolts 24. the free edge of the resilient material being feathered at 25 to spring under a reinforcing strip 16 surrounding the boot opening, or the free edge may be curled inwards and bear against the inturned flange of the body panel 15. In Fig. 4 the resilient material is split, one portion 42 being secured by spring clips 44 to a reinforcing strip 18 surrounding the boot opening and the other 43 being secured by spring clips 44 to the inner panel 36, the free edge of the flange 41 bears against the rim of the boot lid 13. The parts 42, 43 may be integral and be bolted to the back of the reinforcing strip. In another modification one leg of the resilient channel is clipped to the projecting flange of the reinforcing strip 18 and the other bears against the inner panel of the lid. A central door post 65, Fig. 6, is provided with a central channel-section, facing strip 59 which provides angular recesses along the outermost edges of the post for the seal and drain channels 60 with one limb 66 bearing against the flange 64 of the door 61 and the other limb 68 formed with or without a projecting bead to bear against the edge of the door when closed.
Patent GB-692516-A (GB)
Title: Air release valves
IPC: F24D19/08
Filed: 1951-01-22
Abstract: 692,516. Regulating fluid flow. JORGENSEN, L. Oct. 2, 1951 [Jan. 22, 1951], No. 1612/51. Class 135 An air release valve for use, e.g. in a hot water circulating system, comprises a tubular body a for connection to the system housing a wooden plug e, e.g., of pine or greenheart, readily permeable by air but permeable by water only at a rate which permits evaporation of the water from an end of the plug exposed to the atmosphere. The plug is secured by an annular nut c which may vary the compression and thus the permeability of the plug. A spring-loaded check valve f is fitted to close the body on removal of the plug. According to the Provisional Specification, the plug may be made of unglazed porcelain, sintered metal or closely compacted glass or other fibres.
Patent GB-881384-A (GB)
Title: A current rectifier or inverter installation including means for providing protection against overloads
IPC: H02H7/125
Filed: 1958-01-16
Abstract: 881,384. Protective cut-out arrangements. SIEMENS - SCIIUCKERTWERKE A.G. Jan. 16, 1958 [Jan. 25, 1957], No. 1612/58. Class 38 (5). In a rectifier or inverter installation having germanium or silicon rectifier or transistor elements, protection is provided by switching means arranged to bridge elements or the conductors supplying them or to place in circuit one or more devices which reduce the current through the elements. In Fig. 3, rectifier elements 3a . . . 3c are protected by tripping means 6 under the control of over-current devices 8a ... 8c and reverse current devices 9a. . . 9c connected in the A.C. supply conductors. In addition, an over-current device 10 and a reverse-current device 11 may be connected in the D.C. supply circuit to the load 4. The switching or tripping means 6 operates contacts 7 to individually short-circuit the elements 3a . . . 3c, to bridge the supply conductors, or to collectively short-circuit the elements and bridge the supply conductors as shown. The tripping means 6 may also actuate contacts 6a to effect the tripping or release of a main switch 12. Figs. 5 to 8 (not shown), illustrate arrangements having similar switching means, but these means are controlled by saturable transformers responsive to overcurrents or reverse-currents. Fig. 9 shows an arrangement in which bridge-connected rectifier elements 3a...3f are protected by a " current reducer" such as those of Specifications 748,532 and 769,752 and comprising a switching member 35 and a current-limiting fusiblemember 36 or a positive temperature coefficient resistor. In Fig. 10 (not shown), such a current reducer is connected in each supply conductor. In Fig. 11 series-connected rectifier elements 38... 43 are short-circuited by contacts 7 of the tripping means 6 on the operation of differential relays 44. . . 46. Each relay is polarized and has two windings each connected across one of the associated pair of rectifier elements. When an element fails, the current in one of the relay windings becomes predominant so that the relay closes its contacts to effect operation of the means 6.