baber/WOPTO huggingface dataset:
Patent GB-245993-A (GB)
Title: Improvements in clamping mechanism for plate planing machines
IPC: B23D13/00
Filed: 1925-04-29
Abstract: 245,993. Hoe & Co., Ltd., R., (Hoe & Co., Inc., R.). April 29, 1925. Work-holders. - In clamping mechanism for holding plates such as electrotype plates on the table of a planing-machine, the work W is held between a fixed abutment 14 on the table 5 and an abutment 17 which may be moved rapidly up to the work and then clamped by a small movement of the operating means. The abutments have serrated faces for engaging the work, and the abutment 17, which is guided by strips 42 engaging inclined surfaces below the table, has a boss 32 provided with internal faces 33 which embrace a cam 38 rotatable by a handle. The cam has formed integrally therewith a flange 30, Fig. 5, having slots 35 in which engage rollers 36 on two bars 22, 23, Fig. 1, slidable in a transverse plate 21 and each carrying a multi-toothed pawl 25 at its outer extremity, the cam being rotatably mounted in the plate 21. In operation, this plate, cam and abutment are moved up to the work and the cam is then rotated, its first action being to cause the pawls to engage ratchet teeth 27, 28 on the table so as to lock the plate 21, and further rotation causing the abutment to be forced against the work. Projections 37 in the cam-slots 35 cause a slight movement of the plate 21 to allow the pawls to mesh with the ratchet teeth. Planing.-The table 5, which is reciprocated by a rack and pinion driven in any known manner, has two ribs underneath at each side which pass above and below anti-friction rollers 7 mounted on pins 8 attached to the machine, bed.
Patent GB-1529201-A (GB)
Title: Sensitizers
IPC: G03C1/705
Filed: 1975-03-18
Abstract: 1529201 Photographic materials CIBAGEIGY A G 20 Feb 1976 [18 March 1975] 11187/75 Heading G2C Photographic materials comprise a light-sensitive compound, of lead, zinc, cadmium, titanuim or silver and as a spectral sensitizer a compound in which the radicals of a sensitizing dyestuff are covalently bound to amino, imino, hydroxyl, mercapto, carboxylic or carboxylic amide groups of a natural hydrophilic colloid. Preferably, a silver halide emulsion or vapour-deposited layer is sensitized with the reaction product of gelatine and either rhodamine B isocyanate or a methine or azamethine dye containing a mono-or di-halogenotriazinyl, mono-, di- or tri-(chloro or bromo) pyrimidinyl, 2, 3-di (chloro or bromo) quinoxalin (6) one, vinylsulphonyl, #-chloroethylsulphonyl, isocyanate, isothiocyanate, a-ketomethylene, aldehyde, oxirane or aziridine group. Suitable merocyanine and dinuclear cyanine dyes having reactive groups attached to a N-containing heterocyclic ring or methine chain form the subjectmatter of Specification 1529202.
Patent GB-1096787-A (GB)
Title: Speed control system
IPC: H02P5/50
Filed: 1965-03-16
Abstract: 1,096,787. Automatic speed control. OILGEAR CO. March 16, 1965 [March 16, 1964], No. 11197/65. Heading G3R. A speed control system comprises two servo loops; the outer loop 18 comprises a reference pulse generator 26 and an actual speed pulse generator 32 (pulses are produced at fixed angular positions of shaft 14) connected respectively to up and down inputs of a pulse counter 28, the output of which, after conversion to an analogue voltage, is used as a reference for the inner loop. When speed is correct, the counter content corresponds to desired speed; a speed error causes the count (and hence the reference voltage) to go progressively up or down, thus integrating the error. The inner loop 20 comprises a hydraulic motor 12, whose speed is determined by the position of a valve 54 which is moved in response to any difference between the reference and feedback signals and thus is inherently integrating in effect; as shown, the feedback signal is produced by a tacho-generator 46, but alternatively Fig. 2 (not shown) it is a voltage corresponding to the position of the valve. The system is applied to a rolling mill drive Fig. 4 (not shown), wherein the speed of each stand is controlled in relation to the next. Power is provided by a motor (78) driving a common shaft (76) and a reference pulse generator (98). The drive to each stand is made via a differential (82), the second input of which is provided by a hydraulic motor controlled according to the invention. Reference pulses are passed through ratio control units by which the speed of each stand is adjusted, and the pulses for each stand other than the last (or first) are taken from the ratio unit of the preceding (or succeeding) stand, so that adjustment of one automatically effects an overall adjustment up (or down) the line. Details of the ratio control unit are given Fig. 5 (not shown).
Patent GB-1529644-A (GB)
Title: Data display system designed as a microcontroller
IPC: G09G5/42
Filed: 1976-03-19
Abstract: 1529644 Data processing BUNKER RAMO CORP 19 March 1976 [31 March 1975] 11220/76 Heading G4A A fixed address supplied to an address register E addresses the first word of a control table in a main memory 17 to derive the first half of the starting address of data for a first channel, which is transferred via an interface J, multiplexer D and address register E to a random access memory H; this is then repeated for all other channels. The above is repeated to derive the contents of the second, third and fourth words of each control table, which are, respectively, the second half of the data starting address and the first and second halves of an entry marker. The fifth word in each control table, which indicates the operation mode, is then addressed by address register E and written in a display channel data store M from which it is read to provide a mode character on the respective display. The contents of random access memory H as addressed by a channel address counter K are transferred via multiplexer D to address register E and status and device counters F, G, and the address of the entry marker from random access memory H is compared at I with the data starting address from address register E. If the inputs to comparator I are equal a multiplexer L passes to display channel data store M a fixed code to display a cursor. If the inputs to comparator I are not equal data from main memory 17 addressed by address register E is transferred via interface J and multiplexer L to the display channel data store M. The address register E then acts as a counter to access the subsequent data from main memory 17. This is carried out for each channel. Display channel data store M includes two registers for each channel. End of line and end of frame codes are detected by interface J. The system is controlled by microprograms stored in a programmable read-only memory C addressed by a status register A and a microstep counter B.
Patent GB-425145-A (GB)
Title: Improvements in driving mechanism for machines for winding bobbins or cheeses of yarn, applicable also to other machines
IPC: B65H54/44
Filed: 1934-04-14
Abstract: 425,145. Hydraulic transmission of power. HARRISON PATENT KNITTING MACHINE CO., Ltd., and POTTER, L. V., 48, Upper Brook Street, Manchester. April 14, 1934, No. 11282. [Class 69 (ii)] [See also Group IX] Driving-mechanism for machines for winding bobbins or cheeses of yarn mounted on a spindle or for other machines comprises a cylindrical driving pulley to receive a driving belt, and formed with internal vanes, said pulley being loose on a spindle and enclosing a central hub member with radial vanes affixed to the spindle. The central or hub driven member C with radial vanes c is secured to the spindle A by set screws and is enclosed by the cylindrical peripheral driving member B made in two parts each loose on the spindle A. The member B has radial interior vanes b, and is closed at the end by a plate D with vanes d secured to the member B by screws b with a liquid tight joint b<2>. The peripheral member B may be formed as a pinion, with an enclosing plate such as D screwed to each end. The plate D has apertures to enable the pulley to be filled with oil or other liquid, the apertures being then closed by grub screws.
Patent GB-590729-A (GB)
Title: Fish dressing machine
IPC: A22C25/14
Filed: 1944-06-14
Abstract: 590,729. Fish dressing machine. FRIEDRICH, C.H., and COX, J. June 14, 1944, No. 11338. [Class 28 (ii)] A machine for beheading and gutting fish comprises a gripper 1 which swings the fish round so that the back of its neck strikes an edged plate whereby the head and attached gut becomes severed from the body. Rotating. disc knives 5 first sever the strip connecting the head to the belly.. The fish is either placed in the gripper by hand or by unspecified automatic feed. The gripper carries cutter plates 20, which close on the back of the neck to sever part of the flesh but not the bone nor the gut. When the neck strikes the plate 4, the head grips itself thereon so that further rotation of the grippers assisted by the backward oscillation of the plate 4, pulls the fish away from the head and its attached guts which are left on the plate 4. The cleaned fish body is then released into a shoot 3 and slides into a trough 27 where a bone-extracting wheel 6 breaks the tail fin, engages the back bone and pulls it along one side of a fixed plate 15 to detach it while the now boned body slides along the other side and then drops away. A fan clears the boning wheel of the back-bones.
Patent GB-113506-A (GB)
IPC: F21V25/02
Abstract: 113,506. Oldham, O. March 5, 1917. Battery lamps; holders; cut-out arrangements.-In a miner's or like lamp, a cutout operating on fracture of the lump proper comprises contact-members which are retained in circuit-closing position by a sliding sleeve surrounding the stationary lamp-holder and projecting through the cap of the battery casing so as to bear on the bulb. As shown, the sleeve i, Fig. 1, of glass, earthenware, metal, ebonite, &c. is pressed outwards by a spring j resting on the top of the screw holder b. Flanges m, n on the sleeve and on the cover g of the battery casing retain the sleeve when the bulb is broken or removed. A fragile ring may be interposed between the sleeve and bulb, or the ring may be of metal and the sleeve of fragile material. A curved contact strip h, Figs. 1 and 2, normally depressed by the sleeve i, is secured to an incomplete flange of the holder by screws c and carries at one end a spring contact p. A spring o, Fig. 2, raises the strip and opens circuit between the spring contact p and a stationary contact e. Two such contacts e bearing on the battery terminals are secured in an insulating disk d, the second contact e being attached to a strip r pressed against the centre contact of the lamp. Alternatively the sleeve or a part controlled thereby may bridge two or more contact members.
Patent GB-678612-A (GB)
Title: Improvements in and relating to alternating current measuring apparatus
IPC: G01R21/08
Filed: 1951-05-16
Abstract: 678,612. Power and power-factor measurements; electric analogue computing. BRITISH THOMSON-HOUSTON CO., Ltd. May 16, 1951 [May 27, 1950], No. 11442/51. Class 37. Power and power-factor measurements are made utilizing the Hall effect. A Hall plate 2 is fed at 4 with the voltage of a supply circuit 1, and the magnetic field is provided by the current through solenoid 3; the output at 5 is shown to consist of a pulsating voltage having a frequency twice the frequency of the supply 1, the mean voltage of which varies from a positive maximum when the supply voltage and current are in phase, to zero when they are 90 degrees out of phase and to a negative maximum when they are 180 degrees out of phase. A centre-zero meter 6 registers the mean voltage, i.e. V.I. cos #, the alternating component being isolated by transformer 7, rectified at 8 and applied to meter 9 to register V.I. By feeding V.I. cos # and V.I. to a ratiometer 10, the power factor is measured. The Hall plate 2, Fig. 2, is preferably placed in the gap of a magnetic circuit energized by winding 3. Two Hall plates may be utilized,' Fig. 7, the outputs being in series. Where power-factor alone is desired, the arrangement of Fig. 6 may be used, the D.C. component being fed to circuit 11, and the A.C. component being passed over condenser 12 to rectifier 13.
Patent GB-954190-A (GB)
Title: Printing mechanism
Filed: 1963-03-22
Abstract: 954,190. Selective printing. STANDARD TELEPHONES & CABLES Ltd. March 22, 1963 [March 27, 1962], No. 11475/63. Heading B6F. Typewheel actions; hammer impression arrangements.-A printer comprises a plurality of continuously rotating type-wheels 11, Fig. 1, having associated therewith a plurality of type hammers 14, which in their rest position are retained by a plunger 21 of individual solenoids 22. When the solenoids are activated, the plunger passes down in a slot 27 whereby springs 20 displace the appropriate hammers towards a common hammer drive comprising cams 13, Fig. 2, whose noses 25 engage the hammer rear parts 19 and propel the hammers towards the type-wheels 11. Immediately thereafter the solenoid plungers 21 are restored by springs 23 to arrest the hammers restored by springs 20 by abutting against hammer shoulders 24.
Patent GB-1394421-A (GB)
Title: Rotary fluid seals
IPC: F16J15/40
Filed: 1971-04-27
Abstract: 1394421 End-face seals CHARLES WESTON & CO Ltd 4 July 1972 [27 April 1971] 11506/71 Heading F2B A seal 12 for a rotary shaft where it extends through a casing containing fluid, e.g. dry air, under pressure comprises two coaxial seal rings 18, 19 urged into contact with a common face of a sealing ring 13 by an hydraulic loading at a pressure controlled by the sealed fluid. The sealing ring 13 is recessed at 15 to provide inner and outer sealing faces 17, 16 for the rings 18 and 19 which are non-rotatable and slidably sealed by 0-rings 23, 24 in a carrier ring 20 secured to the casing. The rings 18 and 19 are held against the sealing ring 13 by springs 21, 22 and hydraulically loaded by grease or lubricating liquid, supplied under pressure to a chamber 25 through a pipe 31 from a piston and cylinder unit 26 in which the hydraulic fluid is pressurized in space 32 by connecting space 33 to a pressure bleed 34 from the dry air or other fluid to be sealed in the casing.
Patent GB-976216-A (GB)
Title: Improvements in or relating to novel substituted phenothiazines and intermediates therefor
IPC: C07D279/18
Filed: 1962-03-26
Abstract: The invention comprises compounds of the general formula <FORM:0976216/C1/1> in which Z is S, SO or SO2 and the preparation thereof by catalytically reducing a nitrophenylsulphur pentafluoride to the amino compound, acetylating this, condensing the acetamide with bromobenzene to give the pentafluorosulphurdiphenylamine and heating this with sulphur in the presence of iodine as a catalyst and, if desired, oxidizing the product, in which Z=S, to obtain a product in which Z=SO or SO2.
Patent GB-581584-A (GB)
Title: Improvements relating to vehicle steering mechanisms
IPC: B62D7/22
Filed: 1944-06-16
Abstract: 581,584. Non-reactive mechanism for vehicle stearing gear. BURMAN & SONS, Ltd., BRIGGS, T. H., and BRIGGS, W. H. June 16, 1944, No. 11522. [Class 80 (iii)] Vehicle steering mechanism comprises coaxial driving and driven members a, b, having a helical or equivalent connection between them, a pair of friction rings f, g, mounted on the driven member b, a housing j having two annular friction surfaces m, n, and another pair of friction rings o, p, contacting the surfaces m, n, frictionally engaging the rings f, g, and having interacting ratchet teeth r, the arrangement being such that the friction elements offer no resistance to transmission of motion from the driving to the driven member but come into action to cause such resistance when the driven member rotates or tends to rotate the driving member. As shown a nut d screw-threaded to the driven shaft b has a collar q located between the rings o, p, and dogs e which pass through notches in the ring g and engage dogs on the driving shaft a. A spring s acts to separate the rings o, p. In operation a torque transmitted from the shaft a to the shaft b, cause either ring o or p to be gripped between the collar q and a ring f or g, the other ring o or p being merely rotated by the ratchet teeth r so that the rings o, p are not forced against the surfaces m, n. If the driven shaft b tends to move the driving shaft a then the camming action between the ratchet teeth r tends to force rings o, p apart and against the surfaces m, n, to set up a resistance to motion. In a modification the rings f, g, are free on the driven shaft and are dogged to the nut d, and the rings o, p, have a conical frictional engagement with conical friction surfaces m, n. In this construction additional friction rings are fitted between the' collar q and the rings f, g, and a torsion spring replaces the spring s.
Patent GB-115238-A (GB)
IPC: H02H3/13
Abstract: 115,238. Jensen, R. J. April 24, 1917, [Convention date]. Protective arrangements; induction-motor relays.-Multiphase motors and the like are protected by a Ferraris relay which, when in either of its extreme positions, causes the main switch to open. The field of each core of the relay magnet is rendered unsymmetrical and the turning moment produced thereby is opposed to and less than the turning moment produced by the multiphase field of the relay magnet. The apparatus is shown applied to a three-phase system, the current in each lead being led round one of the relay cores b, c, d, and each core has a shortcircuited winding e consisting of a heavy copper strip. A spring tends to hold the disk a in its zero position and the disk is geared to a contact n which opens an auxiliary circuit at the end of its travel and thereby opens the main circuit. Or the relav arm may separate auxiliary contacts f, g or h, i and so cause the main switch to open. For protection in the event of grounding, a switch is employed having three equal coils each carrying one of the phase currents so that the three normally balance. In the event of an earth connexion, the switch is operated. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a protective switch for a direct-current machine driven by the protected motor. The switch is operated by an electro-magnet having two oppositely-wound coils, one being connected in the positive lead and the other in the negative lead. This subjectmatter does not appear in the Specification as accepted.
Patent GB-398939-A (GB)
Title: Improvements in or relating to apparatus for cutting vegetables
IPC: B26D3/18
Filed: 1932-04-22
Abstract: 398,939. Cutting vegetables. HOBSON, A. J., Cedric Road, Edenthorpe, Doncaster. April 22, 1932, No. 11534. [Class 5 (i).] In a chip-potato machine of the kind wherein the potatoes are fed against stationary crossed sets of parallel blades, said blades being arranged with their cutting edges in different planes so that the cutting is effected in successive stages, the edges of the blades are serrated or recessed at appropriately spaced points to permit only the bevelled portions which constitute the cutting edges of the blades of any one set or tier to project into the spaces between the blades of the preceding set or tier. A blade holder comprises a base ring 2 slotted on its upper side to receive a tier 1x of parallel blades, a centre ring 3 slotted on its lower and upper sides to receive respectively tiers 1y, 1z of parallel blades, and a top retaining ring 4 secured to the rings 2, 3 by screws 5. The rings 2, 3 are rebated or stepped on their outer faces to accommodate depending peripheral flanges on the rings 3, 4 respectively and the ring 2 is formed with an outwardly projecting flange or baseplate 6. More than three sets or tiers of blades may be provided, in which case the blades of each intermediate set or tier are serrated or recessed on both edges. According to the Provisional Specification, the blades are formed with coarse angular teeth.
Patent GB-314515-A (GB)
Title: Device for locating and raising sunken submarines and other ships
IPC: B63C7/16
Filed: 1929-04-15
Abstract: 314,515. Bauwens, C. June 30, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Lifting-dogs and the like. - Apparatus for locating and raising sunken submarines and other vessels comprises gripping and lifting jaws 8, 9 pivoted at 12, one jaw being heavier than the other so us to hang vertically for dredging to locate the object. As shown the jaw 8 is weighted by an extended arm 10. The hoisting rope 20 passes round a sheave 21 on the arm 11 of the lighter jaw 9, and this jaw is held in the position shown in broken lines by a rope 13, passing through an eye 26 on the arm 11, until the jaw 8 engages the sunken object. The jaws are bifurcated beneath the pivot 12 and support plates 24 for engaging the object to be raised. A member 18 pivoted on the spindle 12 is provided with a sliding plug 19 to engage the deck of the sunken vessel and prevent damage when the jaws are closed. The jaws are held closed by ropes 14, 15 which cross one another beneath the jaws and are attached to them at 16, 17. A number of pairs of jaws may be used for engaging the ship at different points of its length, and these, are connected by cables or chains operated from the surface vessel for positioning the jaws.
Patent GB-417236-A (GB)
Title: Improvements in and relating to thermionic valve systems
IPC: H03F3/22
Filed: 1934-04-18
Abstract: 417,236. Valve amplifying circuits. BAGGALLY, W., 7, Sillwood Place, Brighton, Sussex. April 18, 1934, No. 11710. [Class 40 (v).] In valve amplifying systems in which grid current is permitted to flow, such for example as the system described in Specification 396,143, grid bias is supplied from a rectified A.C. source and the voltage of the source is reduced in dependence on the amount of grid current flowing. The A.C. source 1 is connected to the bridge rectifier 2 through the windings 7, 8 of a choke coil, and the rectified current is taken from the bridge through a smoothing circuit 4, 5 to a potentiometer 3. The choke core has three limbs, the windings 7, 8 being on the outer limbs, and the middle limb has a number of separate windings, one of which ef is in series with the potentiometer 3 at E, F and is arranged to saturate the core, while the other windings are in series in the leads from the potentiometer tappings to the grids of the valves. When grid current flows, it opposes the effect of the winding e,f, reduces the saturation of the core, and so reduces the effective voltage applied to the rectifier 2.
Patent GB-732866-A (GB)
Title: Improvements relating to the production of cinematographic films
IPC: G03B27/475
Filed: 1953-04-28
Abstract: 732,866. Photographic projection printing. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. April 28, 1953 [April 29, 1952], No. 11728/53. Classes 98 (1) and 98 (2). A method of making a kinematograph film comprises making a copy of an original film reduced by a factor k by projection printing on a film having a resolving power at least k times greater than that of the original film. As shown, a wide (70 mm.) high-speed original film 1 which is used in X-ray kinematography is unperforated while the 35 mm. high-resolving power copy film 3 has feed perforations. At each film feed, the film 3 is fed on exactly one frame and is then arrested by a pawl 7 engaging in spaced notches 9 in a metering disc 6 fast with a film-driven sprocket 4, while the film 1 is simultaneously fed approximately one frame, the take-up spools 10, 11 being coupled. The film 1 is then located correctly in the projection gate by operation of an overriding manual control to bring an image of register marks 12 on it into registry with fiduciary mark 14 in the eyepiece of a microscope 13. The copy film may be of the direct positive type and instead of the original film a positive copy by two-stage contact printing may be used.