baber/WOPTO huggingface dataset:
Patent GB-111159-A (GB)
Title: Improvements in and relating to Signalling by Means of Electric Lamps.
IPC: G08B5/38
Filed: 1916-11-16
Abstract: 111,159. Baker, W. S. G., and McKenzie, Holland, & Westinghouse Power Signal Co. Nov. 16, 1916. Lamp signals.-In signalling in which two lamps (or groups of lamps) are employed, one lamp being of high resistance and the other of low resistance, the lamps are normally connected in series in which case the high-resistance lamp alone glows, but on short-circuiting it the low-resistance lamp glows. Preferably the high and low resistance lamps have metal and carbon filaments, respectively. For railway signalling, the high-resistance lamp is connected to the track and is short-circuited by a passing train.
Patent GB-842917-A (GB)
Title: Improvements in and relating to offset lithographic printing machines
Inventor: WADLOW DEREK NORTON
IPC: B41F27/12
Filed: 1957-05-23
Abstract: 842,917. Printing and offset surfaces; gripper mechanism. ROTAPRINT Ltd. May 23, 1957, No. 16458/57. Class 100(2) A blanket and master sheet are fed superimposed to the nip between the plate cylinder and blanket cylinder of a rotary offset lithographic printing-machine, the sheets having integral attaching fingers at one end, the fingers on the two sheets being staggered with respect to each other, and the sheets are thereby attached respectively to the blanket and plate cylinders by a row of. gripper fingers on each cylinder the gripper fingers on the two cylinders being staggered with respect to each other. The plate cylinder 1, Figs 1 and 3, and transfer or blanket cylinder 2 are provided with respective series of grippers 6, 6a, mounted on rods 4, 4a having crank ends 10, 10a, the grippers 6, 6a being staggered with respect to each other. The grippers are normally in closed position under spring action, and are moved to the position of Fig. 1 by pressing a button 7, whereupon a cone 9 acts on the crank ends 10, 10a to open the grippers. On assembly of two sheets a, b secured together at one edge and folded as in Fig. 1, the sheet a for use as a lithographic printing-plate and the sheet b as a disposable blanket, is presented to the grippers, and on releasing the button 7, the grippers close, separating the sheets, and as the cylinders are slowly rotated, each sheet is clamped at its leading edge to its respective cylinder. Sections of two-sheet lengths may be cut from a web, Fig. 4, the two sheets being almost separated by cuts a<SP>1</SP>, b<SP>1</SP>. In another form, Fig. 6, the sheets c, d have staggered projecting fingers and are secured together by adhesive at the points where they touch. In another form, Fig. 8, the sheets are each attached at one edge by adhesive to an edge of a tape h provided with cuts g<SP>1</SP>, g2. In each case, the two sheets are then folded into the position of Fig. 1, i.e. along line a4, Fig. 4, or j, Fig. 8, and presented to the grippers. The sheet a is treated and printed (as by a typewriter) to be used as a lithographic plate before the separation occurs. Any suitable paper may be used. If different paper is to be used for the two sheets, the assembly is formed as in Figs. 6 or 8.
Patent GB-435284-A (GB)
Title: Improvements in intermediate electric tumbler switches
IPC: H01H23/12
Filed: 1934-06-04
Abstract: 435,284. Tumbler switches. PARSONS, Ltd., C. H., and HANDLEY, G. B., Wharfdale Road, Tyseley, Birmingham. June 4, 1934, No. 16528. [Class 38 (v)] An intermediate switch has a movable insulating contact-carrying block f pivoted by means of trunnions r on V-shaped arms s which have limited movement on a pin b on which is pivoted a dolly a which operates the contact block through a dead-centre spring toggle. The block carries two contacts g, h, Figs. 9, 10, each having three contact faces. The contact g is mounted on the upper surface of the block so that its contact faces g<1>, g<2> are on one side of the block and the contact face g<3> is on the other side of the block. The contact h is similarly mounted on the under surface of the block f. These contacts co-operate with two pairs of fixed contacts (not shown) mounted on the base of the switch, one pair on each side of the block f, and on being moved to one side or the other by the dolly a connect the fixed contacts in adjacent or diagonal pairs respectively.
Patent GB-544108-A (GB)
Title: Improvements in or relating to ventilators for use under light screening conditions
IPC: E06B7/06
Filed: 1940-11-15
Abstract: 544,108. Ventilators. PRENDERGRAST, W. W., and CORNES, E. H. Nov. 15, 1940, No. 16530. [Class 137] A light-screening ventilator for openings in walls of buildings comprises a plate 1 having a slot 5 masked by a cowl 6 of greater depth than the slot, the spaces between the ends of the cowl and the plate being closed by end pieces 7. The cowl may be secured to the plate by welding, or may be inserted into the slot by a circular motion, and held by friction, slots 8 in the plate receiving the end pieces 7. In modifications, the cowl may be triangular or rectangular in crosssection.
Patent GB-274059-A (GB)
Title: Improvements in or relating to couplings and bearings for the driving shafts of spinning, twisting and other spindles
IPC: D01H1/20
Filed: 1927-06-23
Abstract: 274,059. Keyser, J. J. July 12, 1926, [Convention date]. Addition to 231,496. Spindle-driving arrangements.-In the arrangement described in the parent Specification, wherein a ball bearing is adapted to act simultaneously as a support for the spindle-driving shaft and a coupling or clutch device for adjacent shaft sections, the adjacent ends of the bearing pins and the shaft sections are of similar construction. As shown in Fig. 1, pins 8 integral with or secured to the inner race of a roller bearing and the ends of the shaft sections 1 are provided with similar slots 9, 10 engaged by a block 11 advantageously formed of laminations to give a degree of elasticity, and, as shown in Fig. 3, the ends of a pin 3 inserted in the inner race of a ball bearing and of adjacent shaft sections are formed as complementary semi-circular spigots 14. 15; in each case a collar or sleeve 12 is mounted on the ends to complete the coupling, or the spindledriving wheel may be used for this purpose. The slots and spigots on each side of the bearing may be at right angles to each other, instead of being parallel as shown.
Patent GB-363959-A (GB)
Title: Improvements in or relating to the flanging of metal plates
IPC: B21D19/00
Filed: 1931-06-09
Abstract: 363,959. Window frames. BUDD INTERNATIONAL CORPORATION, 25th Street, Philadelphia, U.S.A.-(Assignees of Kelley, G. L. ; 2500, Hunting Park Avenue, Philadelphia, U.S.A.) June 9, 1931, No. 16780. Convention date, June 9, 1930. [Class 20 (iii).] Sheet-metal frames with continuous angular flanges for insertion into window; door, or ventilator' openings in closed automobile or other vehicle bodies, are made by slotting a plate at the parts which are to form the corners of the flange, then forming integral upstanding flanges round the slots and welding thereto a gusset having an edge conforming to the edge of the upstanding flange. The flanging of the plate is then effected. Each slot 14 is cut out up to the score lines 16 and flanged up to the score lines 20. The sides of the slot may be parallel or divergent. A triangular gusset 22 is first shaped to the form shown and its edge welded to the edge of the marginal flange 18. The plate is then flanged at the score lines 20.
Patent GB-1096049-A (GB)
Title: Photographic materials
Inventor: STONHAM JOHN PETER
IPC: B41M5/40
Filed: 1965-04-21
Abstract: 1,096,049. Light and heat-sensitive materials. ILFORD Ltd. April 21, 1966 [April 21, 1965], No. 16786/65. Heading G2C. A photograph is produced by exposing to light a material comprising a support on which there is coated a layer which comprises silver halide in a hardenable binder and either in the same layer or a separate layer comprising a hardenable binder adjacent thereto a heat-sensitive dye producing mixture, a silver halide developing agent of which the oxidation product formed on development is capable of hardening said hardenable binders being present in either layer, developing the silver image by treating the material with aqueous alkali, removing the unhardened areas e.g. with a solution of sodium salicylate, and heating the material. Specified hardenable binders are gelatine, polyvinyl alcohol and modified polyacrylamide (see Specification 967, 208). The heat-sensitive dye producing mixture comprises a water insoluble fusible solid m. pt 60-200‹C., a dye precursor and a coupling agent therefor. Specified fusible solids are acetanilide, benzoin, furoin and benzanilide. Triazene dye precursors and coupling agents e.g. resorcinol, phlorglucinol, 2-hydroxy-3-naphthoic acid anilide naphthol, or /3-ketonic acid anilides are described in Specification 1, 031, 542. Other heat-sensitive mixtures are described in Specification 989, 382. Specified developing agents are hydroquinone, catechol and pyrogallol with or without 1-phenyl- 3-pyrazolidone.
Patent GB-1096029-A (GB)
Title: Improvements in screwing-up devices
Inventor: MCQUEEN ROY DEREK
IPC: B25B23/10
Filed: 1964-04-23
Abstract: 1,096,029. Screwing-up device. K. LEITNER. April 22, 1965 [April 23, 1964], No. 16796/64. Heading B3N. [Also in Division B4] In a screw-holding screwdriver driven by means of a motor, there is provided a bush 39 displaceably mounted on the screwdriver shaft 32 and screw retaining jaws 44 articulated to the bush. The jaws are urged together by a rubber sleeve 51. A detachable insert member 52 having a recess 54 corresponding to the nut or screw to be received is screwed to the lower end of the shaft 32. A helical spring 53 is provided between the insert 52 and bush 39 and urges the jaws into clamping position. The tool may be used for installing an oblong nut 61, Fig. 9, co-operating with a screw 58 having a flexible projection 65 whereby the nut can be located at an otherwise inaccessible point and screwed up.
Patent GB-745624-A (GB)
Title: Improvements in the treatments of materials in fine particle form particularly carbonaceous slimes
IPC: B03B5/10
Filed: 1951-07-16
Abstract: 745,624. Washing granular materials. HARVENGT, E. July 16, 1951 [July 17, 1950], No. 16851/51. Class 82(2). [Also in Group I] A plant for treating carbonaceous slimes or other material in fine particle form comprises, as shown, a settling tank 1 with an inlet cone frustum 6 to which the material and liquid to form a pulp is supplied from a tank 19 via a screen 18 and which depends below the pulp level in the tank, overflow troughs 12 and 13 to carry off argillaceous particles and obturators 8 and 16 to control the flow path of the material through the tank, a conditioning apparatus comprising a tank 22 with nozzles 27 for admitting air to thoroughly mix the pulp and density sensitive means controlling the admission of liquid or dense pulp from reservoirs 32 and 33 respectively to maintain constant density, jigs 41 and 42 to which the pulp is then delivered under control of obturators 23 for extracting dense particles at 43 and settling separators 46 for removing shales at 55 and a middle product at 56 which may be supplied to the reservoir 33, the values being delivered at 63 after passing over screens 61 and 62. A further jig similar to jigs 41 and 42 may be used to refine the middle product obtained at 56 ; these jigs preferably comprise a straining bed and pistons generating liquid pulses in the bed with means for minimising unwanted suction effects on the return stroke of the piston by introducing extra liquid during this stroke. An overflow trough 24 of the conditioning apparatus returns material to the supply tank 19.
Patent GB-439499-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02P1/44
Filed: 1934-06-07
Abstract: 439,499. Induction motors. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and MAGGS, A. H., 14, Oval Road, Rugby. June 7, 1934, No. 16945. [Class 35] A starting resistance for the main winding circuit of a capacitor motor is so connected that it is isolated from the mains in the off position of the motor switch, this switch serving to connect the resistance and capacity, or part thereof, in series with their respective windings for starting and to cut out the resistance for normal running. In the arrangement shown, the switch is thrown upwards for starting so that the resistance 7 is in series with the main winding 3 and the parallel connected condensers are in circuit with the auxiliary winding 4. With the switch in the lower position for running, the resistance and one condenser 6 are cut out. Alternatively, the condensers may be in parallel for starting and in series for running or they may be in series for starting with one of them shortcircuited. Specification 393,518 is referred to.
Patent GB-890588-A (GB)
Title: Electrical lead-in pin connectors and a device utilizing the same
IPC: H02M7/62
Filed: 1959-05-20
Abstract: 890,588. Two-part couplings; voltage measuring. BRISTOL CO. May 20, 1959 [May 22, 1958], No. 17103/59. Classes 37 and 38 (1). A lead-in pin connector particularly for a vibrator 10 comprises a tubular member 26 of nickel alloy or other metal suitable for sealing to a vitreous insert 25 in the base of the vibrator, and a ferrule 28 fitting closely round the outer end of the pin and formed of brass or other alloy which has a neglible thermo-electric potential with respect to the material, e.g. copper of a connecting wire 18 extending from the interior of the vibrator through the member 26 to the ferrule, to which it is soldered at 29. It is stated that undesirable thermo-electric effects are thereby eliminated at the junctions of the connecting wires and pins which effects would be detrimental where the vibrator is used in apparatus for measuring small voltages. The pin connectors are retained in engagement with contacts 31 in a socket 30 by a clamp 39 engaging the outer casing 38 of the vibrator and serving to earth said casing to a mounting plate 32. Voltage measuring.-Fig. 3 shows the use of the vibrator with pins as above in a self-balancing potentiometer circuit for measuring the output of a thermo-couple 61. An adjustable resistor 55 is energized from a constant source of potential 56 and has a resistor 59 connected in parallel therewith, to a tapped point 60 of which is connected one side of the thermocouple. The other side of the thermo-couple is connected to the moving contact 12 of the vibrator 10, the coil 35 of which is energized from a constant frequency A.C. source 75. The output side of the vibrator is coupled to the primary winding of a transformer 66, this winding having a centre tap 65 connected to the slider 58 and resistor 55. The secondary winding of the transformer is connected through an amplifier 69 to a stator winding 74 of an induction motor 70 mechanically connected to the slider 58. A second stator winding 73 of the induction motor is energized from the A.C. source 75 through a phase-shifting condenser 76. With a balance condition in the potentiometer network, the output therefrom to the vibrator will be zero, but on a change of potential in the network, such as would result from a change of temperature to which the thermo-couple is exposed, an out-of-balance D.C. potential will be applied to the vibrator and the resulting output pulses will pass to transformer 66 where they induce an A.C. voltage in the secondary winding. After amplification this voltage is applied to the motor 70 which actuates the slider 58 to restore the condition of balance. The position of slider 58 thus indicates the magnitude of the output of the thermo-couple. Specification 890,589 is referred to.
Patent GB-1101976-A (GB)
Title: Improvements in or relating to shears
Inventor: JOHNSON MAURICE VIVIAN
IPC: A01G3/047
Filed: 1965-04-23
Abstract: 1,101,976. Hand shears. SMITH & DAVIS Ltd. 25 April, 1966 [23 April, 1965], No. 17167/65. Heading B4B. [Also in Division E2] Hand shears having a pair of pivotally connected blades each of which is rigidly connected to a handle includes blades 10, 11, handles 12, 13 and a pivot connection parts of which are formed integrally with the handle [see Division E2]. The handles may be formed from a synthetic plastics material and the handgrip portions thereof are formed integrally with the pivot means. The cross-section of each handgrip section varies from end-to-end thereof.
Patent GB-890589-A (GB)
Title: Electromagnetic inverter
IPC: H02M7/62
Filed: 1959-05-20
Abstract: 890,589. Electromagnetic interrupters. BRISTOL CO. May 20, 1959 [May 22, 1958], No. 17195/61. Divided out of 890,588. Class 38 (5). An inverter having a contact-carrying armature 12 in a gas-tight electrically-conductive envelope 11 has an insulating coil support 40 surrounding a reduced diameter portion of the envelope and spacing it from a ferromagnetic container 38. The armature 12 extends from the reduced diameter portion of the envelope 11  between the poles of a permanent magnet structure (not shown) and a contact 13 on the free end of the armature 12 co-operates with fixed contacts 15, 16. Leads from the contacts are taken to terminal structures in the base 23 of the envelope 11 as described in Specification 890,588. The coil support 40 has a collar 42 through which pass the leads 36, 37 for the coil 35 and its lower end 43 has a resilient lip which engages the inner surface of the container 38. The latter acts as a return path for the coil flux and also as a magnetic shield. An insulating cap 46 locates the lower end of the envelope 11 i and has a lip 49 engaging the container 38. Clamps 39 retain the container 38 against an earthed plate 32 and tabs 80 are pressed in from the container to lock the assembly in place. A ferromagnetic ring 45 with a flattened portion fits snugly inside the container and may he rotated to vary the shunting of the magnet poles so as to compensate for manufacturing inequalities. A thin annular ferromagnetic liner 44 in the coil support 40 is provided to improve the flux distribution.
Patent GB-458367-A (GB)
Title: Improvements in and relating to handle grips
IPC: A63B49/08
Filed: 1935-06-15
Abstract: 458,367. Game striking-appliances. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and SMITH, H. HATFIELD-, c /o Dunlop Rubber Co., Ltd., Waltham Abbey, Essex. June 15, 1935, No. 17286. [Class 132 (ii)] A handle grip for a games implement comprises a spiral strip of sponge rubber 2, a winding of adhesive tape 3 and a winding of rubberized or rubber covered textile fabric strip 4. The edges of the sponge rubber strip 2 abut to present a continuous surface and the edges of the rubberized textile fabric strip 4 may abut or overlap slightly. The windings 3 and 4 may be in reverse direction to the sponge rubber winding 2. In a modification, the outer covering may comprise a sheath of grip material such as a rubber tube.
Patent GB-241297-A (GB)
Title: Improvements in and connected with the extraction of oil from palm fruit and the like
IPC: C11B1/16
Filed: 1924-07-21
Abstract: 241,297. Dickinson, T., Brimley, F. J., and Nigerian Products, Ltd. July 21, 1924. Grant of Patent refused. Fats and fatty oils, extracting. - In the treatment of palm fruit and the like in a closed stationary vessel with steam and beater arms so as to pulp the pericarp and render the oil easily separable, steam at a temperature above that of boiling water is used. Using the apparatus shown, palm fruit is passed from a container 1 to either of the closed vessels 3 in which it is cooked by steam above atmopheric pressure and pulped by beaters on a shaft 4. The mass is discharged through a hopper 7 and a flexible hose 8 to any of the centrifuges 9 in which the oil is expelled. The nuts and fibre are discharged into a hopper 10 and delivered by conveyers 11, 12, 13 into an inclined rotary dryer 14 through which hot air or combustion gases are passed. The dried nuts &c. are carried by an elevator 15 to a rotary bar screen 16 which separates the fibre and delivers the nuts to an elevator 17 and a nut-cracker 18. The kernels and shells fall on to a reciprocating screen 19 and through a riddle to a brine tank 20; uncracked nuts pass down the riddle to a trough 21 and are led to the nut-cracker 18. The kernels are taken from the tank 20, dried, and stored.
Patent GB-499125-A (GB)
Title: Improved rotary pump
IPC: F02M59/12
Filed: 1938-06-11
Abstract: 499,125. Rotary pumps. MOULET & CIE, M. June 11, 1938, No. 17412. Convention date, March 11. [Class 110 (ii)] Between the inlet 10a and the outlet 11a of the pump the radial depth of the working chamber A is constant to give a constant rate of delivery. A regulating device on the delivery side comprises a disc 14, forming a side check of the pump, which is secured to a tubular member 15, slidable in a bore 17a of a partition 17. A bellows 20 is secured at its ends to the casing, and to the member 15. Fluid on the delivery side acts through holes 24 upon the bellows, and in the case of excessive pressure causes the disc 14 to move towards the left and form a byepass between suction and delivery ports. A spring 29 presses on the bellows 20. A partition 17 separates the regulating device from the suction effects of the inlet side of the pump. A member 26, held by a spring 27, holds the vanes in position when the disc 14 separates from the pump body. An adjusting nut 32 for the spring 29 is held in position by a slidable bolt 33. To remove the bolt, an arm B is turned, causing the bolt to ride up a cam surface 35.
Patent GB-140133-A (GB)
Title: Improvements in or relating to telephonic apparatus
IPC: H04B3/46
Filed: 1918-10-26
Abstract: 140,133. Latour, M. Oct. 3, 1917, [Convention date]. Addition to 140,123. Thermionic relays and repeaters. - In a lamp amplifying system of the kind described in the parent Specification, a signal device is placed at the operator's station to indicate when the filament circuit of the lamp has been broken; while the electro-magnetic relays at the relay station are prevented from chattering by shunting them by condensers, or they are retarded by other means. In the circuit of a signal device 4, contacts, closed by the electro-magnet controlling the filament switch 3, are provided such that, as the moving member of this magnet is returning to its initial position, the circuit of the signal device 4, in the form of a vibrator, is made and a signal sent to the operator.