baber/WOPTO huggingface dataset:
Patent GB-1005573-A (GB)
Title: Positively driven variable speed mechanism
IPC: F16H37/08
Filed: 1962-10-10
Abstract: 1,005,573. Variable-speed gear. MARSHALL & WILLIAMS CORPORATION. Oct. 10, 1962 [May 23, 1962], No. 38307/62. Heading F2D. A variable-speed gear comprises an input shaft driving to a first output shaft and to a first member of a planetary gear, the input shaft also driving through a continuouslyvariable-ratio gear to a second member of the planetary gear, the third member of the planetary gear driving a second output shaft. As shown, an input shaft 80, Figs. 1, 5, connected to a constant-speed electric motor &c. drives through a worm and wormwheel 91, 33 to a power take-off shaft 25, which may be the drive shaft of a longitudinal stretcher in a web-stretching machine. A carrier 26 fast with the power take-off shaft 25 mounts planet pinions 72 meshing a control sun gear 62 and a driven ring gear 40, the latter either meshing through an idler 315 with a gear 308, Fig. 4, on an output shaft 300, or alternatively meshing directly with the gear 308, Fig. 9 (not shown). The control sun gear 62 is driven from the shaft 80, Fig. 1, through a belt and pulleys 650, a continuously-variable-ratio non- planetating friction gear 350, a belt and pulleys 351, and the shaft 100 &c. The gear 350 comprises driving and driven friction wheels 402, 406, Fig. 12, biased by an adjustable-compressed spring 411 to engage non-planetating tiltable idler balls 403 surrounded by a floating containing ring 405. The idler balls 403 are journalled upon axles 450 slidably engaging at their ends radial slots 452A in a surrounding housing and also engaging inclined cam slots in a control plate 453, turned about the main axis of the gear by actuation of a handle 416 to tilt the idlers and thus vary the ratio. The ratio may be so varied as to give either forward or reverse rotation of the output shaft 300.
Patent GB-941766-A (GB)
Title: Loading devices shovel tooth
IPC: E02F9/28
Filed: 1962-10-10
Abstract: 941,766. Digger teeth for earth-excavating machines. O. FALKENROTH-STEINBACH, [trading as CARL FALKENROTH SOEHNE]. Oct. 10, 1962 [Dec. 15, 1961], No. 38309/62. Heading E1F. The rear of a digger tooth is such as to permit of the tooth embracing either side of the lip 1 of a digging bucket to which it is secured by bolts 3 passing through slots 8 in the rearwardly directed limbs 6, 7 of the tooth and through holes in the bucket lip 1. The heads and nuts of the bolts 3 lie, when the tooth is in position on the lip, in recesses formed in the outer surfaces of said limbs. Teeth 9 are formed on the bottom of each recess to engage with the toothed sides of washers 10 associated with the bolts. The tooth tip 5 and upper limb 6 are formed in one piece of high quality chromium manganese steel and the lower limb 7 of inferior metal is then welded to the tip.
Patent GB-1101325-A (GB)
Title: Process for treating polyester resin
IPC: C08K3/32
Filed: 1965-09-08
Abstract: Linear polyesters are stabilized by treating them in the solid form with a volatile phosphorus compound, in fluid form, at a temperature between room temperature and 10 DEG  C. below the melting point of the polyester.  The phosphorus compound may be applied in liquid or vapour form or in solution, the exposure being sufficient to introduce 0.00025-0.5 wt. per cent of phosphorus into the resin. Suitable phosphorus compounds are alkyl and aryl phosphines, phosphates, phosphites, phosphonates and phosphonites, cycloalkyl, aralkyl and alkyl aryl phosphines, phosphates and phosphites, and PCl3, POCl3, H3PO3 and H3PO4.  Suitable solvents for the phosphorus compound are toluene, chlorobenzene, methyl propyl ketone, dioxan, diphenyl ether, chloroform, tetrachlorethylene and methyl ethyl ketone.  The polyesters may be derived from carbonic acid or e.g. 2:6-naphthalene dicarboxylic acid, diphenyl-4,41-dicarboxylic, adipic, sebacic, azelaic, dodecanedioic, dimethylmalonic, terephthalic, isophthalic or phthalic acids and from, e.g. ethylene, tetramethylene, hexamethylene, neopentyl or diethylene glycols, 1:4-cyclohexane dimethanol, 2:2-bis[4-(b -hydroxyethoxy)phenyl]-propane or hydroquinone or a dihydroxynaphthalene. In Examples polyethylene terephthalate is treated with tritolyl phosphite vapour or with triphenyl phosphite or tritolyl phosphate or diphenyl benzenephosphonate in acetone solution.
Patent GB-928955-A (GB)
Title: Improvements in or relating to electric filter networks
Inventor: BIRCH JOHN
IPC: H03H9/19
Filed: 1960-11-08
Abstract: 928,955. Piezo-electric crystals; filters. GENERAL ELECTRIC CO. Ltd. Nov. 7, 1961 [Nov. 8, 1960], No. 38333/60. Class 40 (8). A filter comprises a number of piezo-electric thickness-shear resonators having the same fundamental frequency but having plating patterns which differ in the marginal regions of the crystals whereby the inharmonic overtone frequencies are different. The four crystals shown are bevelled quartz discs of AT or BT cut and have identical central electrodes 1 of deposited gold. The lead-off strips 2, 4, 7, 8 differ, however, either in shape or thickness. In addition, small plated areas 3, 5, 6, 9, 10 may be deposited near the edges of certain of the crystal plates. These areas are not connected to the electrodes. The resonators may be arranged as shunt elements in a low-pass LC ladder filter to provide an attenuation notch at a desired frequency. In the band-pass filter of Fig. 3, the pairs of resonators Q5, Q7 have the same fundamental frequency which differs slightly from the resonant frequency of the pair Q6, Q8. The two arms of the filter are connected by a 1: 1 auto-transformer. The plating patterns on pairs of resonators having identical resonant frequencies are made slightly different in order to obtain non-coincident overtones.
Patent GB-1008423-A (GB)
Title: Improvements in or relating to agricultural implements
IPC: A01D78/00
Filed: 1961-10-26
Abstract: 1,008,423. Haymaking machines. C. VAN DER LELY N.V. Oct. 26, 1961 [Nov. 2, 1960], No. 38424/61. Heading AlF. An instrument for laterally displacing crop lying on the ground comprises a frame beam 14 carrying rake wheels 16, 17 arranged to pivot with respect to a further frame part so as to be movable between a working position and a transport position, spring means biasing the frame beam 14 to the transport position being provided. The beam 14 is pivoted in a fork 11 rotatably mounted on a tube 9 connected to a further frame beam 1 and the spring means comprises interconnected spring steel rods 25, 26 connected to the beam 1 and to a flange 27 on the fork 11. A spring loaded pin 42 holds the beam 14 in its raised position and on removal of the pin 42, the beam 14 is turned to take up either of the positions shown in Fig. 1. The beam 14 may also be pivoted about its connection 21 with the fork 11 or removed from fork 11 and attached to sleeve 50 on the beam 1 so that the implement acts as a side delivery rake.
Patent GB-1357032-A (GB)
Title: Method and apparatus for producing identical flat articles each having identical designs thereon
IPC: B23D33/12
Filed: 1971-08-17
Abstract: 1357032 Series manufacture of flat metal articles; work holders ZUMBACH ELECTRONIC-AUTOMATIC 17 Aug 1971 [31 Aug 1970] 38462/71 Headings B3A and B3W A method of making a series of flat articles, e.g. graduated scales, name plates or art work reproductions, each carrying an identical design, comprises providing a plurality of individual designs on a flat sheet, the designs being located relative to each other by a pre-set automatic positional control device, which also provides reference marks on the flat sheet, positioning the flat sheet in a punch by means of the reference marks and punching out the articles. An original drawing or transparency 4 of the image to be reproduced is mounted under a plate 3, which is carried in a frame 5. This is connected by leaf springs 6 to a carrier 7 and is vertically movable by means of a lifting fork 10 mounted on a bush 8. A spring 12 normally lifts the fork to maintain the frame 5 lifted from a vacuum clamping table 13. The fork and frame are lowered by a magnet 15 to bring the drawing or transparency into contact with a film 14. The frame 5 also carries an illuminated cross wire (23), Fig. 2 (not shown) to make a reference mark on the film. Either the carrier 7 or the table 13 is mounted on a support 22 of a cross-slide, Fig. 3, which is movable in two directions by the rotation of threaded spindles 18, 21, driven by stepping motors 17, 20 respectively. A series of exposures are made on the film by stepping the frame 5 by rotation of the spindles 18, 21 and lowering it at the end of each step, two exposures of the cross-wires also being made. The film is developed and a printing block is prepared from it. Metal plates 25, 25<SP>1</SP> are printed with the block and holes are drilled where the cross-wires are reproduced. The plates are located on a frame 24 by pins 26, which enter the drilled holes. The plate 25<SP>1</SP> is positioned under a punch (not shown) which punches out a series of articles as the plate is stepped along the path indicated by the arrowed line. When the articles have been punched out, a piston 28 is actuated to move the plate 25 under the punch, which punches the plate along the arrowed line. The motors 17, 18 are controlled electronically and generally, separate mechanisms are provided for reproduction and punching but they may, however, be performed together. Alternatively the images (50) may be formed on strips (51), Fig. 4 (not shown), reference holes (52) being formed at either end of the strip. Pins engage in the holes and the strips are loaded in tension so that they remain flat during punching. Instead of exposing a film, the plates may be provided with sensitized layers. Lines may be used as reference marks instead of holes. The lines are either scanned photo-electrically during punching, or the plates are trimmed along the lines and used with stops.
Patent GB-1261297-A (GB)
Title: Gearshift lever for a vehicle
IPC: B60K20/02
Filed: 1970-08-10
Abstract: 1,261,297. Gearshift lever. DAIMLERBENZ A.G. 10 Aug., 1970 [29 Jan., 1970], No. 38465/70. Headings B7B and B7H. A gearshift lever for a vehicle comprises a metallic insert 1 having a deformable plate 3 mounted at its upper end and both plate and insert are enclosed by foam. The plate may be welded or screwed to the insert and a plastic plate 4 may be mounted at the top of the lever.
Patent GB-1525755-A (GB)
Title: Space-heating radiator of thermoplastic material
IPC: F28F21/06
Filed: 1975-09-19
Abstract: 1525755 Radiators HOECHST AG 19 Sept 1975 [19 Sept 1974] 38521/75 Heading F4S [Also in Division B5] A one-piece radiator made of a thermoplastics material comprises a pair of tubular header manifolds 1 interconnected by tubular conduits 2 joined in pairs at their ends by a single connection 5 to the header manifold 1. A strengthening web indicated at 3, 4 and 7 extends between the conduits and the headers. The radiator is preferably produced by blow-moulding (see Division B5).
Patent GB-1108970-A (GB)
Title: Rock drilling machines having devices for indicating rotation of drill rods
IPC: E21B47/00
Filed: 1965-09-10
Abstract: 1,108,970. Revolution-direction indicator. ATLAS COPCO A. B. Sept. 10, 1965 [Sept. 21, 1964], No. 38742 /65. Heading G1K. [Also in Division B3] A rock drilling machine has fitted thereto a device for indicating the rotation of a drill rod in conditions of poor visibility, said device comprising a removable flat annular marking body 10 having light-reflecting portions thereon and which rotates with the drill rod. The body 10 has a larger inside diameter than that of the drill rod 11 and it thus rotates at a reduced speed. A light-reflecting plate 13 is attached to the body 10 by rivets 14. In a modification Fig. 2 (not shown) the inside diameter of the body 10 is knurled to assist rotation when used with a circular section drill rod and the body is provided with three radial grooves having a light reflecting coating.
Patent GB-1145806-A (GB)
Title: Multiprocessor interrupt directory
IPC: G06F13/26
Filed: 1967-08-23
Abstract: 1,145,806. Data processing system. SPERRY RAND CORP. 23 Aug., 1967 [26 Aug., 1966], No. 38880/67. Heading G4A. A data processing system comprises n independently operable data processors having an interruptibility index code storage register for storing coded signal groupings indicative of the interruptibility level of each task being processed, and m independently operable controllers for controlling sets of interrupting entities, each processor including an interrupt priority code storage, register for storing coded signals groupings indicative of the highest interrupt priority code for the set of entities coupled thereto and an interrupt directory coupled to the processors and controllers to match the controller exhibiting the highest interrupt priority code to the processor exhibiting the lowest interruptibility index code. A processing system is shown in Fig. 1 having three processors 1, 2, n and two sets of peripheral equipment controlled by Input/Output controllers 1, 2. Each processor has a portion II storing its interruptibility index which is constantly updated as processing proceeds and each controller has a portion IP storing its interrupt priority code. The codes used are one-out-of-three codes with 100 having the highest priority and 000 having the lowest, with 100 indicating a processor cannot be interrupted under any circumstance. The processor codes are stored in the flipflops I/OC1, I/OC2 shown in Fig. 7b and pass NAND gates 250 when called by a scan 1 pulse from a counter and NAND gates 252 when called by a scan 2 pulse from the counter. The NAND gates eventually feed an IP register 96 and a comparison circuit 274. The first examined code is stored in the IP register and only when a code occurs having greater priority is the IP register reset by a delay pulse produced by the comparator and a new code entered. The comparator pulse also causes the counter having a value identifying the peripheral unit to be entered into an I/OC identification register. If the maximum priority code 100 occurs then the scan counter is reset and the cycle terminated. A similar unit (Figs. 5a, 5b, not shown) records the processor having the lowest priority code and the value of that code. A code of 000 causes the counter to reset. The contents of the processor identifier register 220, Fig. 5a, enable a specific set of gates in gate circuits 82 and cause the IP code of the selected peripheral unit to be fed to the identified processor. Here the codes of the processor and peripheral units are compared (Fig. 8, not shown), and an accept interrupt signal is produced if the IP codes are of greater priority than the II codes.
Patent GB-1130856-A (GB)
Title: Fluorinated carboxylic esters and their use in textile finishing
IPC: C07C31/40
Filed: 1965-09-13
Abstract: 1,130,856. Fluorinated esters. A. G. PITTMAN, and W. L. WASLEY. 13 Sept., 1965 [21 Sept., 1964], No. 38929/65. Heading C2C. [Also in Divisions C3, C5 and D1] A fluorinated ester is produced by reacting under anhydrous or substantially anhydrous conditions an alkali metal fluoride with a fluoro-ketone of the general formula (wherein R 1  and R 2  are organic groups, one or both of which carry fluorine substituents, there being at least two fluorine atoms in positions to activate the carbonyl group of the ketone so that it will react with an alkali metal fluoride) to form an alkali metal fluoro-carbinolate of the formula (wherein M represents an alkali metal atom) and reacting the alkali metal fluorocarbinolate with a carboxylic acid halide to form an e3ter of the formula wherein Ac is an acyl radical of a carboxylic acid. Examples describe the production of heptafluoroisopropyl acrylate, methacrylate and acetate, of #-chlorohexafluoroisopropyl acrylate and methacrylate, of #,#<SP>1</SP>-dichloro-pentafluoroisopropyl acrylate and methaerylate, of the acrylic acid ester of perfluoroheptan-4-ol, and of the ester having the formula
Patent GB-1135735-A (GB)
Title: Video signal digitising circuit
IPC: G06V30/162
Filed: 1966-09-01
Abstract: 1,135,735. Video signal digitizing circuit. INTERNATIONAL BUSINESS MACHINES CORP. 1 Sept., 1966 [27 Sept., 1965], No. 38995/66. Heading H4F. A video signal which is quantized to two levels corresponding to white (negative) and black (positive) is applied via a circuit including a capacitor C to a voltage discriminator 26 which has its reference level determined by a circuit R2, R3, R4, R5 which is connected to receive a potential determined by the output of the discriminator whereby the reference level changes when the discriminator changes state. The output from the discriminator is applied via a converter 28 (which merely changes the potential range) to set a trigger circuit 30 which is triggered by pulses at 1 Ásec. intervals from a clock 32. The signal generated by the trigger circuit is thus digital with respect to both amplitude and width and occurs in synchronism with the clock. The charge path for capacitor C during black comprises resistors R and R1  in parallel providing a time-constant of 0.5 Ásec., whereas the discharge path during white comprises resistor R alone (since diode Dl is non-conductive) providing a time-constant of 1 Ásec. The effect of the change of the timeconstant together with the change of the discriminator reference level is illustrated in Fig. 3, where C indicates the quantized video signal, e indicates the discriminator reference level, d indicates the potential on capacitor C at the input of the discriminator. The circuit does not respond to the video signal unless it remains at black for at least 0.5 Ásec., thus being unresponsive to "noise" pulses, but once the discriminator responds the condition is held to cause trigger 30 to operate at the next clock pulse due to the 1 Ásec. discharge time-constant of capacitor C. When trigger circuit 30 has operated the discharge time-constant of C is reduced to 0.5 Ásec. by introducing a further resistor R6 in parallel with R. The resistor is connected via a diode D2 to receive the input quantized video signal via AND gate 42 and inverter 44. The AND gate received a second input from a latch circuit 36 which is set by the output of trigger 30 and reset by the output of converter 28.
Patent GB-1486216-A (GB)
Title: Prosthetic denture and method for producing it
IPC: A61C13/225
Filed: 1974-09-06
Abstract: 1486216 Dentures J M HAZAR 6 Sept 1974 39005/74 Heading A5R [Also in Division B5] An artificial denture comprises a generally U-shaped assembly of hard prosthetic teeth 28, Figure 4, the bite portions of the teeth being in contact with one another and the base portions 35. Figure 13. of the teeth being separated, by generally wedge-shaped spaces, a hard prosthetic generally U-shaped base gum structure 76 bonded to the base portions 35 of the teeth and filling said spaces, the hard base structure having a recess 78 for receiving a toothless gum area, and a layer of soft formable material overlying the recess, wherein peripheral areas of the prosthetic base structure and marginal areas of the soft formable layer are sealingly coupled to prevent food particles from entering therebetween. The soft formable layer may be covered by a hard liner which is initially spread as a fluid on the soft layer, positioned in the patient's mouth to give an impression thereof to the  liner, then removed from the mouth and allowed to set hard. The formable layer and the hard base structure may have grooves and projections to provude a lock and the soft layer may be bonded at its marginal edges to the hard base structure by an epoxy adhesive, or may be sealed by a band of elastomeric material which is placed around the joint between the layer and the base structure. The hard base structure may be made of an ethylene-vinyl acetate copolymer, the soft formable layer of an acrylic material and the hard liner of an acrylic material which will bond to the formable layer.
Patent GB-857579-A (GB)
Title: Improvements relating to electric smelting furnaces
IPC: H05B7/02
Filed: 1957-12-18
Abstract: 857,579. Electric smelting furnaces. ELEKTROKEMISK A.S. Dec. 18, 1957 [Dec. 22, 1956], No. 39369/57. Class 39(3). In a smelting furnace having one or more electrodes 2 each electrode has a coaxial double-walled cylindrical or part-cylindrical charging shaft 4, the annular space 4A between the inner and outer walls of each shaft affording a passage through which the charge is supplied to the furnace pot or through which the reaction gases can escape upwardly to preheat the charge. Each shaft may be formed with longitudinal slots 7 for the electrode supply connections 6. In a polyphase furnace the parts of the charging shafts nearest the centre of the furnace may be joined together to define a common central charging shaft, Fig. 3 (not shown).
Patent GB-1303460-A (GB)
IPC: F23D14/26
Filed: 1970-08-17
Abstract: 1303460 Perforated tube gas burner ASW APPARATENFABRIEK NV 17 Aug 1970 [22 Aug 1969] 39557/70 Heading F4T  To prevent lift-off in a burner comprising a burner tube of substantially circular crosssection provided with a plurality of successive main burner ports 2, a casing 3 is provided partially enveloping the tube to define two longitudinal side chambers 8 communicating with the interior of the tube by means of at least one port 9, the casing having a centre part 4 provided with orifices 5 to encompass the main burner ports 2 and side parts 6, 7 including upstanding walls which define a channel and are provided with auxiliary burner ports 10 directing gas across the channel bed over main burner ports 2. As gas in side chambers 8 is under low pressure no premixing of combustion air is necessary, the four auxiliary flames which preferably surround each main flame preventing lift-off. The orifices 5 may be extended into the upstanding walls to define the auxiliary ports 10 themselves.
Patent GB-1016691-A (GB)
Title: Device for printing numbers on articles in a printing machine
Inventor: FRICKER EDWARD ALEXANDER
IPC: B41F13/10
Filed: 1960-11-17
Abstract: 1,016,691. Number-printing apparatus. W. & F. G. FRICKER Ltd. Feb. 19, 1962 [Nov. 17, 1960], No. 39609/60. Heading B6C. A printing device incorporates a roller 3 formed with a recess 8, a printing cylinder 7 carrying printing characters on its periphery and rotatably mounted in the recess, a rock arm 9 having a one-way driving connection with the cylinder, a cam 14, and a cam follower 11 which co-operates with the rock arm 9 on rotation of the roller so as to swing the arm and thus turn the cylinder. A bracket 6 mounted on a removable distance-piece in the recess 8 supports the cylinder 7 which co-operates alternately with an inking roller and an impression roller, Fig. 1 (not shown), and prints consecutive characters on a web of paper. The arm 9 is urged to move in a direction against the thrust of the cam by a spring, Fig. 3 (not shown); a stabilizing spring 18 is also provided. In a second embodiment, Fig. 4 (not shown), the arm 9 carries a cam follower in the form of a stud constituting an adjustable tappet and a cam is eccentrically fixed on the stationary shaft about which the roller 3 rotates. The same character may be repeatedly printed in either embodiment by withdrawing the cam 14, loosening the eccentrically fixed cam in the second embodiment or permitting the shaft on which the roller is mounted to rotate. The device may be rendered inoperative by removing the distance-piece from the recess and the projection of the cylinder may be adjusted by selecting a suitable distance-piece.
Patent GB-1477266-A (GB)
Title: Removal of monomers from polymer dispersions
IPC: C08F6/16
Filed: 1975-09-29
Abstract: 1477266 Removing volatiles from polymer dispersions SHIN-ETSU CHEMICAL CO Ltd 29 Sept 1975 [19 Oct 1974] 39726/75 Heading C3P Volatiles, e.g. monomer, are removed from an aqueous dispersion of a polymerisate in a polymerization vessel or dump tank by circulating the dispersion from the lower part of the vessel by an external conduit to the upper part above the liquid level while maintaining a subatmospheric pressure of not more than 1À6 times the saturated vapour pressure of water at the temperature of the dispersion. The temperature is preferably 60-90 C.