baber/WOPTO huggingface dataset:
Patent GB-483753-A (GB)
Title: Improvements in or relating to photographic focal-plane shutters
IPC: G03B7/08
Filed: 1936-11-06
Abstract: 483,753. Photo-electric control of photographic shutters. ZEISS IKON AKT.- GES. Nov. 6, 1936, No. 30326. Convention date, Nov. 16, 1935. [Class 98 (i)] In a focal-plane shutter, the slit-adjusting member is coupled to the regulating member of a resistance included in the circuit of a photo-electric exposure meter, a compensating gear converting the non-uniform movements of the slit adjusting member into uniform movements of the resistance regulating member. The winding knob 1, the shutter release knob 49, and the axially movable bolt 50 are mounted coaxially, and the hub of the knob 1 is rigidly connected to a disc 6 which carries a pin 14 adapted to couple with the slotted adjusting disc 2. The compensating lever 7 is pivoted on a pin 9 on the disc 2, and one end of the lever has a pin 10 which engages in a curved slot 11 on an intermediate wall 5 whilst the other end moves a carrier 8 and contact 3 on the resistance 4 of the photo electric meter. A gear wheel 18 on the hub of the disc 2 drives a film spool 21 through a gear wheel 19 and coupling spring 22. The shutter is wound through a gear wheel 28 which is carried along by coupling pins 26, 27 and a disc 23 coupled to the winding knob 1. The angular displacement (before winding) of the pins 26, 27 determines the slit width since it governs the amount of winding of the shutter curtain 34. The curtain shaft 33 driven through the gears 30, 31, 32, carries the curtain 34 and the driving bands 35. These bands pass through buckles 41 in the lower curtain 40 and over spring rollers 37. A catch device 42 holds the curtains in set position and is released by rotating a shaft 43 by means of a pin 45, lever 44 and pin 48, the latter being actuated by depression of the bolt 50 and the disc 23. In adjusting the slit width, the knob 1 is lifted and withdraws the pin 14. The pin is then inserted in another hole in the disc 2, the coupling disc 23 being similarly actuated and varying the angular relation between the pins 26, 27. The movement of the pin 14 produces a corresponding movement of the lever 7 and adjustment of the resistance 4.
Patent GB-1366067-A (GB)
Title: Drainage blocks
IPC: E01C11/22
Filed: 1971-08-04
Abstract: 1366067 Road surface drainage blocks; kerbs SAFETICURB Ltd 4 Aug 1971 [23 June 1970] 30349/70 Heading E1G A road surface drainage block 2 which may have an integral kerb portion 4 has a longitudinal face 10 provided at intervals with transverse passages 12 leading to one or more longitudinal ducts 8. As shown the passage 12 comprises a recess in the end face, the block, Fig. 2 (not shown), having a similar recess (16) at its other end and a central transverse slot (14). The end faces may have grooves 18 for sealing compound, or may have integrally-cast self-locking sealing elements (not disclosed). The upper regions of the slots and recesses may have metal surrounds. The blocks may be cast in upper and lower portions.
Patent GB-1221360-A (GB)
Title: Multilayer antireflection coating for low refractive index materials
IPC: G02B1/11
Filed: 1968-06-26
Abstract: 1,221,360. Anti-reflection coatings. PERKINELMER CORP. June 26, 1968 [June 26, 1967], No. 30482/ 68. Heading G2J. A transparent body with a refractive index of less than 2:0 has an anti-reflection coating comprising four layers, each layer having an optical thickness of one quarter of a visible wavelength, the refractive indices following the law N 4 <N 8 < N 1 <N 3 <N 2  where N 8  is the refractive index of the body and N1 to N4 are the refractive indices of the layers of the coating in order of increasing distance from the body, thus reducing the reflectance of the said wavelength. The reflectance is reduced to less than 0À5% in the visible spectrum. Particular sets of values of N s , N1, N2, N3 and N4 are given. The coating may be deposited by evaporation in a higher vacuum, vapour deposition or reactive sputtering. For example all four layers may be formed by simultaneous controlled evaporation from two sources one containing magnesium fluoride with refractive index 1.38 and one containing zinc sulphide with index 2.26.
Patent GB-306062-A (GB)
Title: Improvements in connection with motor-driven vehicles
IPC: A63G25/00
Filed: 1927-11-14
Abstract: 306,062. Johnson, J. Y., (Lusse Bros., Inc.). Addition to 225,601 and 306,059. Controlling different functions by same handle or lever.-Relates to vehicles of the kind described in the parent Specifications and having a steering post turning on a vertical axis to steer the vehicle, the upper part of the post being adapted to swing on an horizontal axis to move friction driving members into and out of engagement with the traction wheels, and comprises cam means whereby during an initial predetermined steering movement of the steering post one of the friction driving members is caused to engage its traction wheel resiliently with a desired pressure, further rotation of the post merely causing this pressure to be kept constant, while the other friction driving member remains disengaged from its tractior wheel. The invention is described in connectior with an amusement vehicle running on an electrically conductive floor and underneath another metallic surface which constitutes the other con. ductor for supplying power to an electric motor driving the vehicle. The motor 41 drives frictior rollers 33 eccentrically mounted in sleeves carried by bearings 18 so that by rotating the sleeves by arms 38, 39 the rollers can be brought into or out of engagement with the traction or driving wheels 13, 14. When the upper part 55 of the steering post 51 is swung rearwardly about a universa joint 58 a lever 67 moves a sliding bar 72 and a T-shaped lever 76 pivoted at 77 to the bar 72 forwardly, and brings both friction roller 33 into driving engagement by means of rods 83 and springs 89. The lower part of the steering post, which carries the steering wheel 54 in a fork 53, is formed with an arm 106 which is pivoted to a bar 104 having a pivotal and sliding connection 107 with the car platform and is provided with a plate 121 having a cam slot 123 engaged by a lug 124 on the central arm of the lever 76. Thus, when the steering wheel is moved to the position shown in inverted plan in Fig. 4, the bar 104 rocks the lever 76 and moves the arm 39 forwardly, bringing the corresponding friction roller into engagement with its wheel with a predetermined pressure, the other friction roller being moved to the disengaged position by its arm 38. Further movement of the steering wheel in the same direction merely moves the arm 133 of the cam slot past the lug 124 without affecting the lever 76 or the friction rollers. As in the parent Specifications, the rearward movement of the steering post closes the motor switch 93 just before the driving rollers are brought into engagement with the wheels.
Patent GB-266813-A (GB)
Title: Improvements in or relating to waterproof and like materials
IPC: D06M15/693
Filed: 1925-12-03
Abstract: 266,813. Hõfele, C. Dec. 3, 1925. Drawings to Specification. Indiarubber adhesives and solutions.-A sulphur-free solution of rubber containing 5 per cent of barium sulphate and 10 per cent of zinc oxide is used in making waterproof compound fabrics, suitable for clothing and motor-vehicle hoods, and for other purposes. The rubber solution is spread on the fabrics, which are pressed together and heated to a temperature of 140‹ to 160‹ C. to finish, smooth, and satinize the fabric.
Patent GB-970306-A (GB)
Title: Improvements in or relating to shuttle valves
IPC: F16K11/044
Filed: 1961-08-25
Abstract: 970,306. Valves. L. H. GARDNER. Aug. 25, 1961 [Nov. 2, 1960], No. 30722/61. Heading F2V. A shuttle valve comprises a valve body 10 having a bore 12 closed at each end by plugs 16, an inlet port 20 in each plug and an outlet port 24, each of the plugs having a seat 22, an aluminium valve member 26 reciprocable in the bore, a socket 34 in each end of the valve member, and a resilient seal 36 in each socket, the valve member being shifted into engagement with one of the valve seats to close the associated inlet port in response to pressure fluid delivered through the other inlet port and having a cylindrical central portion 28 and end portions which are non-circular in crosssection thereby to provide for the flow of fluid from the selected inlet port to the outlet port.
Patent GB-1324320-A (GB)
Title: Agents for the selective combating of weeds in beets
IPC: C07D265/12
Filed: 1972-06-30
Abstract: 1324320 Mixtures of herbicides BAYER AG 30 June 1972 [1 July 1971] 30726/72 Heading A5E [Also in Division C2]  A herbicidal composition finding application in combating weeds in beet crops, comprises an admixture of imidazolidin-2-one-1- carboxylic acid isobutylamide and 3-cyclohexyl-5,6-trimethylene-6-hydroxy-5, 6- dihydrouracil
Patent GB-417735-A (GB)
Title: Improvements in or relating to concrete mixing machines
IPC: B28C5/18
Filed: 1933-11-06
Abstract: 417,735. Mixing-machines. LEESON, T. D., 38, Rue Arenberg, Antwerp, Belgium. Nov. 6, 1933, No. 30767. Convention date, May 17. [Class 86.] In concrete mixing- machines which are tilted for discharge, a stop device is provided for controlling the tilting movements comprising a stud 8 mounted on a pedal - operated, counter-weighted arm 5, and adapted to engage one or other of a number of recesses 4 in the hub of the hand-wheel 1 by which the tilting is effected.
Patent GB-803132-A (GB)
Title: Improvements in or relating to capacitors
IPC: H01G4/16
Filed: 1954-10-26
Abstract: 803,132. Capacitors. SIEMENS & HALSKE A.G. Oct. 26, 1954 [Dec. 5, 1953], No. 30792/54. Class 37. An electric capacitor comprises a paper dielectric coated on at least one side with a thin aluminium layer so that it is self-healing and impregnated or varnished with a cellulose ester such as cellulose acetate or cellulose butyrate or with a cellulose ether such as ethyl cellulose or benzyl cellulose. It is stated that the cellulose compounds assist in the formation of an oxide film on the aluminium and hence reduce the migration of metallic ions into the dielectric with a consequent reduction in the tendency of the capacitor to break down.
Patent GB-461097-A (GB)
Title: A laying battery cage for poultry
IPC: A01K31/17
Filed: 1935-11-08
Abstract: 461,097. Battery cages. SHEPHERD, J. E., and SHEPHERD, A., (trading as SHEPHERD BROS.). Nov. 8, 1935, No. 30873. [Class 5 (ii)] Water troughs B extending the whole length of a row of battery cages are connected at one end to pipes L leading to an automatic flushing cistern E, for example of the self-tipper kind, and at their other ends to fall pipes M. The fall pipes may lead the water to a settling tank before it passes into a drain. The battery cages may be arranged back to back, each trough supplying two sets of cages on one row of cages.
Patent GB-779885-A (GB)
Title: Improvements in or relating to transistor circuit arrangements for simulating a variable electric resistance
IPC: H03K3/26
Filed: 1954-12-01
Abstract: 779,885. Keying carrier frequencies. PHILIPS ELECTRICAL INDUSTRIES. Ltd. Dec. 1, 1954 [Dec. 4. 1953], No. 30877/56. Divided out of 779,884. Class 40(5) The emitter base path of a junction transistor 4 is so biased that the emitter collector path shunting the tuned circuit of an oscillator, e.g. another transistor 36, is of sufficiently low value normally to prevent. oscillations but a condenser 37 is connected to .the transistor 4 so that if oscillations are 'caused temporarily to start e.g. by temporarily short circuiting the condenser 37 or as shown by a pulse 38 applied to block temporarily the emitter collector path the oscillations are rectified across a junction of the transistor 4 and cause an opposing bias to be produced on the condenser 37 to maintain the oscillations. The oscillatior 36 is thus stable both in "on" and "off" condition. The condenser 37 may be connected as shown to the base of the transistor 4, its other terminal being connected to earth or to the live terminal of the supply source. Alternatively it may be omitted and an R-C filter included in the emitter circuit to develop the blocking bias. With, as shown,'no direct bias source 'between the emitter and collector of the transistor 4 the collector current may be substantially zero. The transistor 4 may be of symmetrical type, i.e. the emitter/ collector current reverses with reversal of the voltage between the emitter and collector.
Patent GB-339054-A (GB)
Title: Improvements in and relating to devices for testing grain
IPC: G01N33/10
Filed: 1929-10-11
Abstract: 339,054. Dobson, R. Oct. 11, 1929. Testing grain.-A perforated tray 5 is hinged to a base plate 7 preferably perforated also. A cutter in the form of a perforated plate 8 having a handle 9 is rotatably mounted on the back of the tray 5 by a pin 10 and nut 11. A clip 12 holds the base-plate and the knife and the tray together. In a modification a rotary cutter turned by a central projection is mounted between the tray and the base-plate. The grain is shaken into the perforations and the cutter rotated to slice the grains which are then inspected.
Patent GB-1031355-A (GB)
Title: Improvements relating to the mounting of electric arc electrodes
Inventor: ALLEN ALEC GEORGE
IPC: H05B7/109
Filed: 1962-08-13
Abstract: 1,031,355. Electrode clamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 13, 1963 [Aug. 13, 1962], No. 30961/62. Heading H5H. An electrode clamping arrangement as described in Specification 941,895, wherein the actuating member for the clamp is fluidpressure operated, either hydraulically or preferably pneumatically.
Patent GB-754314-A (GB)
Title: Apparatus for the measurement of the resistance of capillary blood vessels
IPC: A61B5/103
Filed: 1954-10-27
Abstract: 754,314. Apparatus for measuring the resistance to rupture of capillary blood vessels. LABORATOIRE DE PHYSIQUE MEDICALE. Oct. 27, 1954 [Oct. 27, 1953], No. 30980/54. Class 81(2). Apparatus for the measurement of the resistance to rupture of capillary blood vessels comprises a pump for giving a desired depression, a suction cup for application to the skin, a vacuum gauge combined with the suction cup and a tube connecting the suction cup and the pump. The pump 1 comprises a tube 5 which is open to the atmosphere through an aperture 8 and in which a piston 6 slides. An exhaust valve 11 and a valve 12 connecting the pump 1 and the connecting tube (not shown) are provided in a mounting 9. The mounting 9 and a push button 7 for moving the piston 6 are arranged so that the pump 1 may be operated by one hand. A depression produced in the connecting tube and the suction cup 2 may be relieved by unscrewing a milled knob 18. The suction cup 2 is provided with a reading glass 21 through which the skin can be viewed. The vacuum gauge 3 comprises a Bourdon tube 22 which is in communication with the interior of the suction cup 2 and which operates a pointer 25 which moves over a scale. The valves 11, 12 in the mounting 9 comprise discs each having two seats one of which is smooth and the other grooved or undulated for the passage of air.
Patent GB-274706-A (GB)
Title: Improvements in portable collapsible shelters or tents
IPC: E04H15/00
Filed: 1926-12-07
Abstract: 274,706. Byne, E. Dec. 7, 1926. Tents. - A tent frame is formed of sprung arched collapsable ribs hinged together at their ends on pivots 5 and kept in arched formation by a tensioning member 10. The parts of the ribs may be hinged together for collapse by a stop hinge 12<a>, 13, Fig. 5, or both portions of the rib may be hinged separately to a common block 14b, Fig. 11, or again the parts may be connected by a flexible portion such as of leather, over which may slide a sleeve to form a rigid joint. The ribs are maintained in correct position by a stay 4 with clip portions 15, 15<a> for the ribs. The covering material is provided with flaps 8, 11 for the attachment of staying ropes 8<a> and ballast 11<a>, respectively.
Patent GB-251320-A (GB)
Title: Improvements relating to breakdown cranes for railways
IPC: B66C23/50
Filed: 1924-12-29
Abstract: 251,320. Branston, J. W., and Cowans, Sheldon, &. Co., Ltd. Dec. 29, 1924. Axle-trucks.-To equalize the load on the axles of a truck 1 carrying a breakdown crane, the jib 4 is lowered on to a spring support 7 on the match truck 3 until the spring registers a predetermined weight.
Patent GB-683656-A (GB)
Title: Improvements in or relating to an accumulating unit for a tabulating machine
Filed: 1950-12-22
Abstract: 683,656. Statistical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 22, 1950 [Jan. 5, 1950], No. 31252/50. Class 106 (i). An accumulating unit for a tabulating machine includes a driven element carrying a read-out contact brush which is moved out of engagement with an associated read-out device when the driven element is coupled to its driving element. Figs. 2 and 3 show a single denomination of an accumulator comprising a driven element 51 including diametrically opposed vanes 6 engageable with a sawtoothed member 15, secured to a constantly rotating driving wheel 14, or with a similar fixed coupling member 13 of read-out device 52. The element 51 is axially moved by engagement of a disc 8 thereon with a yoke 4 pivoted at 25 and operated by the common armature 3 of start and stop magnets 2, 1 respectively. In operation, differentially timed impulses are sent to magnets 2 from contacts C5 and cardreading brushes LB, Fig. 8, to start rotation of elements 51, and each element is de-coupled from its wheel 14 and returned to the position shown in Fig. 2 in which read-out wire 18 engages the read-out device comprising digit contacts 17 and a common segment 17a, by an impulse to magnet SM via contacts C2 or by mechanical means consisting of cam members 40 which coact with a stud 46 on a yokereturning blade 22. Carry is effected by " 9's " and " 10's " contact wires 30, 35, Figs. 3 and 8, carried by pivoted members normally latched by the tails of spring-urged pawls (not shown) which are rocked by vanes 6 at the " 9 " position, and between the " 9 " and " 0 " positions, respectively. The ''9's " carry circuit, including contacts 36 and 37, is broken when the corresponding " 10's " circuit is completed (contact 31 to 33 instead of 32). The carry mechanisms are restored to normal near the end of a machine cycle by bail 38 which is rocked by studs 39 on wheel 14.
Patent GB-935286-A (GB)
Title: Improved tumbling media
IPC: B24B31/14
Filed: 1959-09-15
Abstract: An abrasive chip having a volume of 1/16 to 8 cubic inches for use in wet-tumbling procedures comprises a uniform mixture of from 15 to 50 parts of synthetic resin and from 50 to 85 parts of particulate abrasive, e.g. aluminium oxide, quartz, grastone cottrell, talc, tripoli, pyrophyllite and gypsum. Synthetic resins specified are polyester resins, phenolformaldehyde resins, urea-formaldehyde resins, epoxy resins, polyvinyl chloride, nylons, silicones and synthetic rubbers.  Also present in the mixtures may be diatomaceous earth and calcium carbonate.ALSO:An abrasive chip having a volume of 1/16 to 8 cubic inches for use in wet-tumbling procedures comprises a uniform mixture of from 15 to 50 parts of synthetic resin and from 50 to 85 parts of particulate abrasive, e.g. aluminium oxide, quartz, graystone cottrell, talc, limestone, tripoli, pyrophyllite and gypsum.  Synthetic resins specified are polyester resins, phenol-formaldehyde resins, urea-formaldehyde resins, epoxy resins, polyvinyl chloride, nylons, silicones and synthetic rubbers.  In specified processes: (a) a polyester-styrene mixture is compounded with aluminium oxide, benzoyl or methyl ethyl ketone peroxide and diatomaceous earth and moulded into chips with heating; (b) as in (a) but using talc as the abrasive; (c) as in p  (a) but using a mixture of the diglycidol ether of bisphenol A and m-phenylene diamine as the resin; (d) as in (a) but using a furfuryl alcohol solution of a urea-formaldehyde resin; (e) as in (a) but using an aqueous solution of a phenol-form; and (f) a polyvinyl chloridedioctyl phthalate plastisol containing calcium carbonate, an abrasive and a tin heat stabilizer is heated in a pellet mould.
Patent GB-188964-A (GB)
Title: Improvements in devices for perforating sheets
IPC: B26F1/36
Filed: 1921-11-25
Abstract: 188,964. Burton, H., and Burton, C. F. Nov. 25, 1921. Reciprocating-punch machines.-In a machine for punching paper for filing purposes, of the type in which a lever depresses two or more plungers against the action of springs, the plungers 3 and springs 6 are entirely enclosed within lugs 2 cast integrally with the base 1, or separately attached thereto. A pin 8 passes through the tops of all the plungers and engages the operating lever 9 which is pivoted to a pair of links 11, which are in turn mounted on a rod 12 supported in the lugs.
Patent GB-468554-A (GB)
Title: Improved advertising apparatus
IPC: G09F11/00
Filed: 1936-11-18
Abstract: 468,554. Changing signs. LINDEN, L. P. Nov. 18, 1936, Nos. 31587/36 and 2263/37. [Class 3 (i)] A row of display panels bearing letters &c. are raised into view consecutively and dropped out of sight simultaneously by electromagnetic means. Fig. 4 shows a panel 13 detachably mounted on the limb 11 of a U-shaped armature 9 by a clip 12. The limb 10 forms the core of a solenoid 8, and when it is drawn into the solenoid to raise the panel, a spring-pressed catch 15 pivoted at 14 takes under the armature to hold the panel 13 in its display position. The catches 15 are all released simultaneously by rods 23 carried by linkages 21 controlled by a spring and by a solenoid 20. Two rows of panels are shown, rising through steps 24a in a casing 24. Rubber &c. pads 18, 19 on supporting bars 17 and on the armatures reduce the sound of actuation. The current is supplied to each armature in succession by a brush contact pawl-and-ratohet rotated either by a solenoid intermittently excited by a magnetic spring balance-wheel, carrying a long and a short switch trip, or by a motor through a crank reciprocating the end of a rod carrying the pawl.
Patent GB-1303528-A (GB)
IPC: F01L1/344
Filed: 1970-06-30
Abstract: 1303528 I. C. engine valve gear ALFA ROMEO SpA 30 June 1970 [15 July 1969] 31745/70 Heading F1B A valve operating cam-shaft driven by the crank-shaft has means for varying the rotational position of the cam-shaft with respect to the crank-shaft comprising first and second members attached to the cam-shaft and crank-shaft respectively and capable of limited rotation with respect to one another, one of the members having a tangentially extending cylinder housing a plunger which engages a circumferentially facing surface of the other member and control means to admit or prevent the admission of pressure fluid to the cylinder. The intake camshaft 7, Fig. 1 is driven from a chain sprocket 9 through a ring 16 which has projection 17, Fig. 2 engaged in the spaces between projections 19 on a ring 18 which is keyed to the cam-shaft. When plungers 22 hold projections in the Fig. 2 position due to oil pressure in chamber 21 the cam-shaft has advanced phasing. When oil pressure is not present a spring 42 caused the arrangement to return to a delayed phasing position. Oil passes via duct 14, restriction 25 and ducts 26, 27, 28 to a non-return valve 29 and thence to chamber 21, the pressure also being communicated to chamber 31 which is closed by a cylinder 32 held stationary by an arm 33 which engages a screw 34. The system oil pressure is relieved through a hole 35 which is closable by a rotatable bush 36 which is actuable by a linkage connected to the accelerator pedal.