baber/WOPTO huggingface dataset:
Patent GB-1396609-A (GB)
Title: Image projection apparatus
IPC: G03B21/11
Filed: 1972-06-07
Abstract: 1396609 Optical projection apparatus EASTMAN KODAK CO 7 June 1972 [7 June 1971] 26614/72 Heading G2J A projection apparatus for use with a medium carrying an array of micro-images includes a shifting mechanism 15 having a carriage 39 translatable along a shaft 27 and a carrier 50 movable along the shaft 27 with the carriage 39 and also pivotable about it, the shaft 27 being perpendicular to and spaced from the optical axis (20), Fig. 4 (not shown). As shown, in Fig. 2, the carriage 39 has two spaced end plates (only 41 visible) and the carriage 50 includes an arm 51 carrying a leg 58 with a slot 59 receiving a micro-fiche 10. A locking mechanism 61, with a release slide 60, is provided to engage holes in the end of the micro-fiche 10. Movement of the carriage 39 and carrier 50 is provided by two electric stepping motors (31), (32) Figs. 5, 6 (not shown) which are controlled by a programmer (105), Fig. 8 (not shown). To insert/ remove a fiche 10 solenoid 75 is activated to pivot the carriage 39 about the shaft 27 and align its opening 45 with a throat 17. A solenoid (65) Figs. 6, 7 (not shown) is also activated to pivot arm 68 to release the locking mechanism 61 by pressing slide 60 against the action of spring 62. A third solenoid (85), (Figs. 6, 7) is provided to shutter the light path during the insertion/removal operation. The projector may be designed for episcopic or diascopic projection.
Patent GB-946199-A (GB)
Title: Optical maser
IPC: H01S3/093
Filed: 1962-07-11
Abstract: 946,199. Optical masers. HUGHES AIRCRAFT CO. July 11, 1962 [Aug. 18, 1961], No. 26654/62. Headings H3B and H4D. The energy pumping means of a laser provides a relatively long pulse to take the laser material to the threshold of oscillation and then, within the relaxation period, a relatively short pulse which is stated to produce a short high intensity stimulated output. A series of short pulses with an interval less than the relaxation time of the laser material produces a series of output pulses. In one embodiment a ruby crystal is surrounded by two spiral discharge tubes, one to produce the long pulse which brings the device to the threshold state, the other producing the short stimulating pulses. In the embodiment of Fig. 3, a ruby crystal 11 is placed with its axis along the focal axis of an internally silvered elliptical cylinder 10, two discharge tubes 15 and 16 being placed near the other focal axis. The flash tubes are cooled with a liquid in a fused silica tube 17. The crystal 11 is cooled by refrigerated nitrogen and is further screened from the heat of the tubes 15 and 16 by a transparent partition 20. The laser may be used for ranging.
Patent GB-168788-A (GB)
Title: Improvements in or relating to string or thread cutting devices for personal wear
IPC: A47F13/04
Filed: 1920-09-18
Abstract: 168,788. Hanff, E. Sept. 18, 1920. Watch-chain fittings; attaching articles to wearing - apparel. - A string or thread cutting device for attachment to a watch-chain or to a garment comprises a metal plate &c. formed with or having secured thereto a V-shaped cutter. In the form shown, the plate has a V-slot the edges of which are sharpened and one of the limbs of the V is provided with a ring d by which the device may be secured to a watch chain. In a modification, a V-shaped knife is secured to the front of a plate to the rear side of which is secured a safety-pin arrangement for attachment to a lady's dress. The shorter upturned limb of the V-knife is enlarged or provided with a ball to obviate cutting the hand of the user.
Patent GB-362514-A (GB)
Title: Improvements in or relating to electrical signalling apparatus
IPC: H03H9/48
Filed: 1930-09-06
Abstract: 362,514. Valve amplifying circuits. ROBINSON, J. and BRITISH RADIOSTAT CORPORATION, Ltd., 29, George Street, Hanover Square, London. Sept. 6, 1930, No. 26690. [Classes 40 (iii) and 40 (v).] In a receiver having the high order of selectivity set forth in Specification 344,869 and provided with means for the correction of the inherent signal distortion due to the high selectivity the selective device comprises a tuning fork driven by the signals and generating energy as a result of the vibrations set up. The tuning fork is preferably used as an inter-valve coupling in the intermediate frequency amplifier of a supersonic heterodyne receiver to render the receiver adaptable to receiving on a number of wave-lengths. The Figure shows an amplifying valve 12 coupled to a detector 13 through a tuning fork 14, which may be tuned to a submultiple of the frequency of the applied energy. Owing to the reduction in percentage modulation means may be provided to reduce the amplitude of the carrier wave, e.g. automatic biasing means may be provided as described in Specification 356,782. In the case of code telegraph signals the correction for distortion may be effected as described in Specification 356,782. In order to prevent stray effects a screen 50 may be provided between the coils 15, 16 of the tuning fork. Alternately one or both the coils may be replaced by electrostatic devices. Specifications 167,184, [Class 40 (v), Wireless signalling &c.], 313,504, [Class 40 (iii), Telegraphs, Electric], 344,034, 355,754, and 357,085, are referred to.
Patent GB-1194423-A (GB)
Title: An Appliance for the Storage of Shoe Polish and its Application to Shoes
IPC: B65D47/42
Filed: 1967-06-09
Abstract: 1,194,423. Shoe polish container. NIGRIN-WERKE CARL GENTNER. 9 June, 1967 [27 Jan., 1967], No. 26811/67. Heading A4F. [Also in Division B8] An appliance for storing and applying shoe polish comprises a polish container 1 whose open end is closed by a member 2, said member 2 comprising a portion 4 containing a porous pad 6 secured to a plunger member 5 which is movable to displace the pad 6 from a retracted position, Fig. 1, to a working position where the pad protrudes from the closure member 2. As described, pins 9 on the plunger 5 slide in slots 7 in an upper portion 3 of closure member 2, and are displaced by the user's fingers. To seal the contents of receptacle 1, sealing surfaces 5a, 5b are provided. In a second embodiment, Fig. 3, the top end of upper portion 10 is closed by a slidable cap 11 integral with plunger 5; feathers 12 on plunger 5 and keyways 13 on member 10 prevent rotation of plunger 5 until the latter is completely retracted; rotation then locks it in that position. In a third embodiment, Fig. 4 (not shown), rotation of a cap (19) integral with a member (14) causes a plunger (18) to move axially, by virtue of an engagement between bosses (20) with a helical slot (15). In a further embodiment (not shown), the plunger 5 and closure member 3 have corresponding outer and inner screw threads whereby the former can be displaced axially by rotating it.
Patent GB-810817-A (GB)
Title: Improvements in or relating to speed responsive mechanisms for operating electrical contacts
IPC: H01H35/10
Filed: 1956-09-03
Abstract: 810,817. Centrifugal governors. TELEMECANIQUE ELECTRIQUE. Sept. 3, 1956 [Sept. 2, 1955; June 20, 1956], No. 26900/56. Class 57. [Also in Group XXXVII] A speed-responsive mechanism for operating electrical contacts comprises a rotatable shaft 1 carrying a U-shaped stirrup 5 on which is an axle 7 for a right-angle member having a weight 6 on one arm and the other arm 37 directed towards the shaft axis. A torsion spring 9 on the axle 7 biases the member to the Fig. 1 position where the weighted end engages a stop 5b and the end of the arm 37 clears the end of a key 40 on an offset switch-operating shaft 38. As the speed of the shaft 1 increases the weight moves from stop 5b to a stop 25 and the arm 37 engages a key 39 (Fig. 2) and rotates the spindle 38 through approximately 180 degrees to a position with the key 40 uppermost. When the weight returns to its original position the arm 37 engages the key 40 to restore it to the Fig. 1 position. Fig. 11 shows an arrangement with two weights 6A, 6B for separate setting of the upper and lower operating speeds, arm 37A operating key 39 at the upper limit and arm 37B operating key 40 at the lower limit. The shaft 38 has a cam to operate microswitches 22, 23 and a further cam 59 which has a flat face 60 and rotates between two springs 53, 54 to ensure 180 degrees movement of the shaft 38 at each operation. The axles 7, 7A, 7B are angularly adjustable.
Patent GB-961862-A (GB)
Title: A new or improved adjustable pick-up for electrical instruments such as potentiometers, variable resistances or the like
Inventor: BAGULEY GEORGE ARTHUR
IPC: H01C10/34
Filed: 1961-07-25
Abstract: 961,862. Potentiometers. PAINTON & CO. Ltd. Oct. 25, 1962 [July 25, 1961], No. 26971/61. Heading H1S. The sliding contact for a variable electrica component, e.g. the potentiometer of Figs. 1 and 2, comprises a substantially planar contact bridging element 6 secured to an insulating carrier 5, the element 6 being attached to the carrier 5 without the use of auxiliary fixing devices such that the element is substantially immovable in its own plane relative to the carrier member while allowing displacement of the contact parts 13 and 15 in a direction perpendicular to said plane. Two embodiments are described. In Figs. 1 and 2 the contact element is located by lugs, e.g. 18, passing through slots in the member 22 the element being free to pivot to a limited extent about member 22 but positively located in its own plane by the lug, and the shoulders adjacent to the lug, bearing against the respective portions of member 22. In an alternative form, Fig. 6, the contact element 36 is located by lugs 39 and 40 on the carrier 35, the element being retained on the carried member by the hook shaped portion of lug 39, in this case the carrier member is preferably of a plastic, e.g. nylon, so that the lugs may be deformed to permit mounting of the contact element on the carrier. The carrier is preferably formed with a ridge, e.g. 42, Fig. 7, beneath the lugs to allow pivotal movement of the contact element.
Patent GB-824161-A (GB)
Title: Improvements in and relating to the synthesis of polysaccharides
Inventor: RICKETTS COLIN ROBERT
IPC: C08B37/00
Filed: 1954-09-17
Abstract: Polysaccharides are synthesized by subjecting a sugar or mixture of sugars (other than a pentose or a ketose) in the crystalline state, at substantially normal temperature, to the action of the vapours of a volatile inorganic acid (other than nitric acid) in the presence of a source of an amount of liquid water insufficient to dissolve the sugar, until a liquid reaction mixture is produced.  Liquid water itself may be employed as the source of liquid water and may be present as moisture in contact with the sugars, but it is preferred that at least part of the source of water is a non-liquid source. Preferably the non-liquid source is water vapour, or is alternatively water of crystallization present in a crystalline sugar hydrate or in a hydrated salt.  Other sources of loosely bound water such as solid aqueous gels or hygroscopic materials which have been exposed to water, may be employed.  Suitable inorganic acids are the halogen acids and sulphurous acid.  The sugars employed may be monosaccharides, disaccharides, trisaccharides or the lower polysaccharides produced by the above process.  The process may be carried out in an inert atmosphere, e.g. under a blanket of nitrogen, to minimize any oxidation of the reactants and reaction products.  In examples, polysaccharides are produced by allowing anhydrous, moist or hydrated sugars to stand in a desiccator containing a few mls. of concentrated hydrochloric acid to which a few drops of concentrated sulphuric acid is added; other examples describe contacting hydrated or moist sugars with dry hydrochloric acid gas in a rotary mixer.
Patent GB-225207-A (GB)
Title: Improvements in creel arrangement for spinning, twisting, winding and like textile machines
IPC: D01H1/18
Filed: 1924-11-12
Abstract: 225,207. Etablissements A. Barraban. Nov. 20, 1923, [Convention date]. Creel arrangements; mules.-In ring, flyer, or other spinning frames, mules, or winding and like machines the yarn &c. is fed from bobbins 6 arranged vertically one above the other and resting on driving-drums 3. The bobbins are in two tiers, and when one is nearly exhausted the one above or below is moved from the notches 8 on to the arms 5 to rest against the drum 3 and the end 15 is pieced on without interrupting the operation of the machine. The drums 3 are driven from some suitable shaft in the machine, such as the drawing-roller shaft 14, by means such as gears 13, 12, 11, 9, 10. The drums are mounted in uprights 1 carrying the arms 5.
Patent GB-705897-A (GB)
Title: Automatic air relief device
IPC: F24D19/08
Filed: 1952-10-28
Abstract: 705,897. Float actuated valves. AXLANDER, A. N. A. Oct. 28, 1952 [Oct. 31, 1951], No. 27077/52. Class 135 An air or gas relief device for liquid systems, e.g. hot water systems, comprises a valve closure member 18 coacting with a seat 13 leading to ports 14a connecting with an annular outlet 32 or to an outlet pipe, a valve stem 15 with abutments 19, 21 and slidable within a fixed tube 22, and a weighted float 24 surrounding the tube 22 and actuating the valve member through lost motion. The valve member is raised to the closed position by pins 29 on the float engaging the abutment 19 and is then held closed by the pressure of gas within the device until the liquid level has fallen sufficiently for the weight of the float to be transferred to the abutment 21 to open the valve. A strainer 6 is fitted at the inlet and an additional strainer serving as a throttling disc may also be provided in cases of high liquid pressure to minimize the effect of the velocity head of the inflowing liquid on the float. It is stated that the float may operate the valve through levers.
Patent GB-503235-A (GB)
Title: Washing preparations
IPC: C11D3/02
Filed: 1937-10-06
Abstract: 503,235. Washing-agents for cellulose fibres or fabrics. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) Oct. 6, 1937, No. 27104. [Class 91] [Also in Group IV] A washing-preparation for natural or artificial cellulose materials, consists of a watersoluble aluminate and a washing agent stable to hard water. Washing agents used are of the types, R.X.R<1>.SO@3Me, R.X.R<1>.COO.Me, R.O.SO2Me, where R is an aliphatic radical containing 7 or more C atoms, X is CH2O, COO, CONH, CONR2, R<1> R<2> are aliphatic or aromatic radicals, Me is alkali metal or ammonium. Examples of these are, water-soluble salts of (1) condensation products obtained from fatty acids with either aliphatic oxysulphonic acids, amino-sulphonic acids, or aminocarboxylic acids, (2) sulphuric acid esters, or phosphoric acid esters, (3) condensation products of alkylene or hydroxy-alkylene oxides with high molecular alcohols, fatty acid amides, or with phenols containing aliphatic or cycloaliphatic groups, or these substances after reacting with sulphuric or phosphoric acid. In examples, washing liquors for fabrics contain sodium or potassium aluminate and sodium oleyl methyl tauride, sulphuric ester of oleyl alcohol, condensation product of ethylene oxide, ethanolamine, and coconut oil fatty acids, or di-isohexylphenylpentaglycol ether sulphuric acid ester. Silicates, perborates, carbonates, or phosphates may be added.
Patent GB-1118884-A (GB)
Title: An improved method and apparatus for the pyro-chemical decomposition of fluid waste material
IPC: F23D11/38
Filed: 1966-06-17
Abstract: 1,118,884. Burning liquid waste; burners. PRENCO MFG. CO. 17 June, 1966 [17 Aug., 1965], No. 27195/66. Headings F4B and F4T. Liquid industrial waste is mixed with additional coal and/or liquid fuel in a tank 46 and fed through a pipe 65 to an atomizer 20 at the base of a refractory lined retort 10. Secondary air is supplied along the walls of the retort through an annular gap surrounding the burner, and a counterbalanced cover 39 controls the pressure inside the retort 10 and serves as a safety valve. The waste, the coal content of which is determined by the depth to which pipe 65 penetrates the tank 46, is preheated in a coil 40 surrounding the outlet of the burner, or the outlet of the retort (Fig. 5, not shown), and a spring-loaded ball 34 controls the flow of waste, acting as a relief valve in the event of oversized fuel particles entering the atomizer. The ball 34 may have vanes so that it rotates to break up the flow of waste. The incinerator may be used to dispose of waste washing water from industrial plant, containing oil; detergents, and litter. The waste water is stirred in holding tanks; so that the rate of addition of solid and liquid fuel, the depth of pipe 65 and hence the size of coal particles burned, and the air supply ratio may be set for each tank full of waste.
Patent GB-1166986-A (GB)
Title: Resonant Bandpass Filter having Two Frequency Cancellation Traps
Inventor: MARSH JAMES COURTLAND JR
IPC: H04N5/44
Filed: 1968-06-07
Abstract: 1,166,986. Filter networks. RADIO CORPORATION OF AMERICA. 7 June, 1968 [7 June, 1967], No. 27243/68. Heading H3U. A bandpass filter includes rejection or trap circuits for attenuating signals of two different frequencies within the passband and is intended for use in the I.F. amplifier of a T.V. receiver, the two frequencies corresponding to the accompanying sound carrier and the adjacent sound carrier. As shown in Fig. 1, the filter couples an input terminal I to an output terminal O and is connected to an I.F. supply 11. Arranged in series between the terminals I, O is a variable capacitor 13 and inductors 14, 15 connected in series mutual aiding relationship, the mutual induction together with capacitors 13, 16 acting as a resonant bandpass network. A parallel resonant network 19, 20 connected between the lead 17 and earth develops at the two frequencies to be rejected voltages which cancel the voltages developed by the inductors 14, 15 so that a null output occurs at terminal O. The network 19, 20 is caused to provide the critical value of impedance at the two different frequencies by inductively coupling it to an additional resonant network comprising an inductor 21 and capacitor 22, the two resonant networks being also coupled by a capacitor 23. The two networks 19, 20 and 21, 22 together act as an overcoupled double-tuned network and reject frequencies of 41À25 and 47À25 mHz, the network 19, 20 being tuned in the vicinity of 50 mHz and having a low inductance to capacity ratio. The network 21, 22 has a relatively high Q and high inductance to capacity ratio and when uncoupled from the network 19, 20 resonates at 49À5 mHz; however, when the network 21, 22 is coupled to the network 19, 20 it resonates at 41À9 mHz. Fig. 2 (not shown) shows how the filter is applied to a television receiver intermediate frequency amplifier system.
Patent GB-722389-A (GB)
Title: Improvements in or relating to inductor units
IPC: H01Q7/08
Filed: 1952-10-30
Abstract: 722,389. Inductors. STANDARD COIL PRODUCTS CO., Inc. Oct. 30, 1952 [Nov. 9, 1951], No. 27328/52. Class 38 (2). [Also in Group XL (c)] An inductor unit employed as a radio aerial comprises a coil wound on a longitudinal core of ferromagnetic material (e.g. ferrite), each end of which is supported by a resilient mounting. This arrangement reduces the degree of breakage and change in permeability of the ferrite rod when subjected to mechanical shocks, &c. As shown in Fig. 1, a ferrite rod 10 is supported at each end by resilient mounts 20, 21 made of insulating material such as " Arcuarite " (Registered Trade Mark) and secured to an insulating base member 25 by means of rivets 23, 28. Shocks, &c., in a plane perpendicular to base 25 are absorbed by the resilience of the curves 22 and those in a plane parallel to the base by a yielding of the mounts in this plane, this yielding resulting in rotation of corner 40 of the mounts about rivets 28 and lateral twisting of the mounts, the rotation being made possible by arranging that the line joining the rivets 23, 28 runs at an angle to the axis of rod 10 which is less than 90 degrees. The coil which comprises a fixed portion 12 and two adjustable portions 12c, 12d for adjustment of the inductance is tuned by a trimmer condenser 50. Alternatively the ends of the coil may be secured to suitable lugs mounted on base 25 or they may be left free. The complete unit may be mounted in a radio receiver, Fig. 4 (not shown).
Patent GB-422075-A (GB)
Title: Improvements in steering stems of cycles and in the attachment thereto of handle bars
IPC: B62K21/12
Filed: 1933-10-05
Abstract: 422,075. Handle-bars. LEWIS, W. J., 18A, Wycome Road, Hall Green, Birmingham. Oct. 5, 1933, No. 27380. [Class 136 (iii)] In means for detachably securing a handlebar to its stem, of the type in which a twopiece clamp or bracket engaging the handlebar is attached to the stem by means of the usual bolt which coacts with a tapered plug to secure the lower split end of the stem to the steering-column, the attachment bracket consists of two sheet-metal &c. halves 21, which are formed at one end with cylindrical portions 22 to be fixed to the stem 1 by the usual bolt 16, and at intermediate parts with transverse seatings 20 for the handle-bar 7, the other ends being formed with lugs 24, to receive a clamping-bolt 25. A projection 26 on the stem engages a slot 27 in the bracket to prevent relative rotation. The bracket is clamped to the slit upper end of the stem 1 by a conical plug 13 and the bolt 16. In a modification, the bracket is clamped to the stem by the bolt 16 without the use of a plug 13, the top edge of the stem being provided with an upstanding arcuate tongue engaging an arcuate slot in the upper half of the bracket.
Patent GB-1089157-A (GB)
Title: Stored data protection system
IPC: G06F12/14
Filed: 1965-06-30
Abstract: 1,089,157. Data protection. ANELEX CORPORATION. June 30, 1965 [Oct. 27, 1964], No. 27631/65. Heading G4C. In a stored data protection arrangement' writing to a zone of prohibited storage locations is inhibited by comparing requested addresses in an address register with the upper and lower addresses of a forbidden zone in a field register and operating switch means to inhibit writing when said requested address falls within said forbidden zone. The comparator for comparing the addresses preferably comprises a group of NOR gates. The addresses in both the address and the field register may be entered manually or automatically. In a preferred form (Fig. 2), in which a group of disc files in a casing 37 is removably mounted on a frame 43 supporting a read-write head 29 and drive means 49, the upper and lower addresses of the forbidden zone are entered automatically when securing the casing 37 in position by the positioning of field register switches 5, 7, 9, 11, 13 and 15 adjacent to a part of the casing in which holes have been selectively drilled. The upper address of the forbidding zone is preferably inserted as its complement so that any failure to register a bit in this address results in an enlargement of the forbidden zone rather than contraction.