baber/WOPTO huggingface dataset:
Patent GB-102220-A (GB)
Title: Improvements in or relating to Mechanism for Sawing the Perforated Blocks of Ammunition Boxes and the like.
Inventor: THOMPSON FREDERICK GEORGE
IPC: B27B5/12
Filed: 1916-06-03
Abstract: 102,220. Thompson, F. G. June 3, 1916. Drilling-machincs.-Hollow-auger machines for cutting bobbins &c. out of blocks of wood are constructed so that the blocks can be fed continuously to the tool. The tool C is mounted on a tube A rotated in bearings B by a pulley E, and the blocks M are pressed up to the tool through a passage formed by walls I, K, L, between which and the supporting-standard H a gap Q is left to allow the outer portions of the blocks to fall away from the tool, while the cut-out portions pass through the tube A. Knives are fixed in the machine to divide the outer part T of the blocks at V to enable it to fall away from the tool,. The machine shown in Fig. 1 is a modification having a restricted passage for the blocks M, so that only segmental pieces are cut therefrom.
Patent GB-123244-A (GB)
Title: Improvements relating to Ignition Magnetos for Internal Combustion Engines.
Inventor: LUCAS HARRY
IPC: H02K21/38
Filed: 1918-05-10
Abstract: 123,244. Lucas, H., and Chambers, J. H. May 10, 1918. Inductor machines. -An inductor magneto for ignition in internalcombustion engines comprises a four pole rotary inductor in which diametrically opposite pole-pieces a, b are of the same polarity, and a stationary laminated magnetic system formed with three parallel or equivalent limbs g, h, i, the arrangement being such that when one of the pole-pieces is opposite the central limb, the two pole-pieces of opposite polarity are opposite the outside limbs. Each pair of the pole-pieces is formed integral with or is jointed to a plate in contact with the inside face of one of the limbs of a permanent magnet d. The induction coil windings k, l are carried on the central limb i. The construction shown produces four sparks per revolution. In order to obtain eight sparks the limbs g, h are extended and connected together and provided with an additional limb opposite the limb i. This additional limb is also wound with primary and secondary windings.
Patent GB-274002-A (GB)
Title: Improvements in and relating to electric pocket, cycle and other lamps
IPC: H01K9/00
Filed: 1927-03-22
Abstract: 274,002. Eckhardt, F., and Hohnekamp, M. Sept. 18, 1926, [Convention date]. Battery lamps; multiple-filament lamps. - To enable a light to be maintained from dry-battery pocket, cycle, and like lamps when the voltage of the battery falls, the bulb is provided with two or more filaments 15, 16 designed for the normal and reduced voltages of the battery and a device is provided to select the filament to be put in circuit by the usual switch 19. The centre contact 12 of the bulb is common to both filaments, and one filament is connected as usual to the shell 11 of the cap while the other is connected to a flanged metal ring 13 insulated from the shell 11. The bulb-holder socket. 8 is carried by an insulating bar 7 fixed in the lid 5 of the lamp casing, and two depending contacts 18, 180 located at the opposite ends of the bar are respectively connected to the socket 8 and bent to form a conductor 170 adapted to engage the contact ring 13 on the bulb. Hence by reversing the lid on the casing either contact 18 or 180 can be engaged with the switch 19 to select the filament. A window 20 on the lid enables indicator figures on the casing to be read.
Patent GB-853137-A (GB)
Title: Improvements in or relating to rice bran oil extraction
IPC: C11B1/10
Filed: 1958-03-12
Abstract: <PICT:0853137/III/1> Oil is extracted from rice bran by forcing an oil solvent such as hoxane, methylpentane, or trichlorethylene in closed circuit through a mass of the bran while maintaining a subatmospheric pressure on the downstream side of the bran, separating solvent under such reduced pressure from the extract obtained, increasing the pressure exerted on the separated solvent, preferably to atmospheric, and then returning this solvent to the upstream side of the bran.  As shown, a preferred embodiment comprises an extractor 11 containing bran B filled to level l from hopper 15 and supported on fine mesh screen 12.  Solvent is fed in from tank 30 by valve 32 and line 13, valves 33 and 34 being closed, until the weight ratio of solvent to bran is 1-1.3, whereupon valve 32 is closed, and valves 34 and 35 opened.  Fluid thereupon flows through outlet 14 to miscella receiving tank 36, whereupon vacuum pump 37 is turned on to reduce the pressure by 15-25 mm. Hg. Solvent vapour therefore passes through the pump and returns by lines 37b and 13 to extractor 11 at substantially atmospheric pressure.  After some 4-8 minutes, the pressure is reduced to 180-220 mm. Hg. below atmospheric for 15-25 minutes while extraction is completed.  Valves 34 and 35 are then closed and 19 and 21 opened and steam passed into the extractor from S2; steam is also passed into jacket 11c from S1. Solvent vapours are driven off through 20 into condense 22 and the condensed liquid obtained run off through lines 23 and 24 to tank 25. The use bran is discarded into truck 17 from the bottom 11b of the extractor, which is hinged at 16.  The miscella, which is a solution containing about 15% oil, is then passed by valve 38 from receiving tank 36 to still 39 heated by steam from S3; solvent driven off is condensed in 42 and passed to tank 25 while the oil which remains is passed to storage tank 47.  Water which collects is run off from solvent tank 25 through valve 26 and from tank 47 through valve 50, and the residual solvent passed from tank 25 by pump 28 and line 29 back to tank 30.  Tank 25 is also provided with vent line 44 and low temperature condenser 45.  U.S.A. Specification 2,727,914 is referred to.
Patent GB-1363211-A (GB)
Title: Pattern recognition system
IPC: G06K9/00
Filed: 1972-02-22
Abstract: 1363211 Pattern recognition GEOMETRIC DATA CORP 22 Feb 1972 [23 Feb 1971] 8005/72 Heading G4R A pattern recognition system, e.g. for identifying different types of blood cells, includes a store to which are fed quantized signals representing the field of view containing the pattern. The store feeds counters which are incremented when two or more selected stages of the store have a certain state, the count indicating the pattern type. Signals resulting from scanning the field are quantized to binary form in which, for example, a 1-bit represents a part of the nucleus of a blood cell. The binary signal passes to a store comprising serially-connected shift registers (SR1-41, Fig. 4, not shown). As the binary signal moves through the store, the outputs from various stages are sampled. For example, stages corresponding to the end points of six equal-length lines lying at different angles in the field are sampled (76-86, Fig. 3, not shown), the movement of the signal through the store effectively stepping the lines through the image. Other stages corresponding to the end points of groups of lines of other lengths are also sampled. Whenever both ends of a line in a particular group are in the nucleus (i.e. both are 1-bits) a corresponding counter is incremented. When the pattern has been shifted through the store the output of one of the counters is selected, being that counter which has previously been found to result in the best discrimination between the cells to be recognized. The counter output is normalized by dividing it by a count corresponding to the number of 1-bits in the signal fed to the store. The resulting signal is compared against a number of ranges of values, the range within which it falls indicating the cell type. Instead of sampling the two end points of lines, three or more points may be sampled, the points defining the apices of a polygon.
Patent GB-473958-A (GB)
Title: Aeroplane bomb
IPC: F42B10/56
Filed: 1937-03-18
Abstract: 473,958. Aerial bombs. GOURDOU, C. E. P. March 18, 1937, No. 8037. [Class 9 (i)] Relates to aerial bombs of the type fitted with a parachute which opens when the bomb is first released and become detached therefrom after a predetermined time. According to the invention, the surface area of the parachute in square metres in relation to the weight of the bomb in kilograms provides a ratio which is greater than <1>/70 and less than <9>/400. The means for releasing the parachute 6, Fig. 5, from the bomb 5 may comprise a reel 11 around which the cable 9, connected to the parachute, is wound. The reel is loosely journalled on a rod 12 of the bomb and is braked bv friction washers under the action of a spring 14. In a modification, the cable is connected to a rod which is screw-threaded into the bomb. When released, the bomb by its own weight unscrews itself from the rod and then falls freely. The bomb may be carried by a casing in the aeroplane and allowed to fall or it may be extracted therefrom by first opening the parachute. Alternatively, the parachute is mounted in a casing of the bomb and is extracted therefrom by a cable 7, Fig. 2, attached to the aeroplane, as the bomb is dropped, the cable being subsequently broken.
Patent GB-1172994-A (GB)
Title: Improvements in Door Handle Mechanisms
Inventor: CAMPBELL WILLIAM JOHN
IPC: E05B3/04
Filed: 1966-02-24
Abstract: 1,172,994. Securing together door handle parts. W. J. CAMPBELL. 24 Feb., 1967 [24 Feb. 1966], No. 8118/66. Heading F2U. A door handle assembly comprises a squaresection bar 23 having a substantial portion 25 of its length screw-threaded on its corners and an unthreaded portion 26 fast in a handle 11, a square tube 22 slidably mounted on the screwthreaded portion 25 of the bar and engaging a square bore 24 in a handle 10, and a screw 18 engaging the handle 10 and threaded into the bar 23 so as to clamp the tube 22 between the handle 10 and a knurled nut 28 which is adjustably threaded on the bar 23 so as to determine the effective length of the assembly to suit a door stile 31. The tube 22 is non-rotatable but slidable with respect to a cam 21 of a spring bolt-operating latch. A boss 20 of the handle 10 is rectangular and engages a rectangular slot in the cam 21. As shown, the handles 10, 11 are of aluminium alloy and the bar 23 is of harder material such as steel. The portion 26 of the bar 23 is of reduced cylindrical section and is joined to the remainder of the bar by a conical section 27. The portion 26 is forced into a circular hole of the handle 11 such that the softer material of the boss 20a thereof is displaced and cold formed on to the bar 23. Alternatively, the bar may be cast in situ, forced or swaged into the handle 11, or a square or round ended bar 23 may be caulked, staked or cross-pinned into the handle 11.
Patent GB-976702-A (GB)
Title: Stabilized polyoxymethylenes and a process for preparing same
IPC: C08G2/00
Filed: 1961-03-06
Abstract: Polyoxymethylenes containing terminal hydroxy groups and which decompose to lose less than 80% of their weight when heated for 30 minutes under nitrogen at 220 DEG C. are stabilized by reaction with one or more a :b -unsaturated ethers at 50 DEG -220 DEG C.  The polyoxymethylene may be one obtained by polymerizing gaseous or liquid formaldehyde or trioxane, by copolymerizing formaldehyde with trifluoroacetaldehyde, or by copolymerizing trioxane with cyclic acetals. The ether may have the formula <FORM:0976702/C3/1> or <FORM:0976702/C3/2> wherein R is a monovalent radical of a saturated aliphatic, aromatic or cycloaliphatic hydrocarbon and may be substituted, R1 is H or R, and R11 is an alkylene radical containing 2-4 carbon atoms. The ether may be used in the gaseous phase under pressure at higher temperatures, and the reaction should be performed in the absence of oxygen and water.  A solvent may be present.  The preferred ethers have the formula R111 (O-CH2CH2)n-O-CH=CH2, wherein R111 is a monovalent radical of an aromatic hydrocarbon which may be substituted with alkyl, alkoxy or acyloyl groups and n is preferably 1 to 100. Catalysts such as H2SO4, HCl, inorganic and organic acid halides, anhydrous halides of certain metals and boron (e.g. boron trifluoride), alkali and alkaline earth metal salts of hydrofluoboric acid, and compounds of hydrofluoboric acid with ammonia, amides, amines and nitrogen-containing heterocyclic compounds (including polyvinylpyrrolidone) may be used. Examples illustrate the reaction of polymeric trioxane containing terminal OH groups with boron trifluoride and e.g. phenylvinyl ether, b -naphthoxyethylvinyl ether, phenylvinyl diglycol, and C6H5-O-(CH2-CH2-O)8- 12, the reaction of polyformaldehyde containing terminal OH groups with BF3 and vinyloctadecyl ether or phenylvinyl ether, the reaction of the polymeric trioxane with vinylisobutyl ether and thionyl chloride or phenylvinyl ether and acetyl chloride, and the treatment of the polymeric trioxane with certain specified fluoborates and subsequent heating under nitrogen with specified ethers.
Patent GB-721377-A (GB)
Title: Rotary-mould-table injection-moulding machines
Inventor: BRAZIER LESLIE ROBERT
IPC: B29C45/06
Filed: 1952-04-01
Abstract: 721,377. Rotary-mould-table injection-moulding machines. DUNLOP RUBBER CO., Ltd. Feb. 24, 1953 [April 1, 1952] No. 8229/52. Class 87 (2) A rotary-mould-table injection-moulding machine is provided with stationary electrical induction heating elements for heating the moulds, these elements extending along the circular path of the moulds. As shown in Fig. 1 (elevation) and Fig. 2 (plan) the moulds 27, mounted on intermittently-rotated table 20, pass through a #- shaped stationary tunnel 49 within which are a series of electrical induction elements 49a. The table carries 16 moulds, but the tunnel extends around only 13 of them at any one time. The table rotates clockwise Fig. 2. At station 1 a mould is closed and filled, then it passes through the tunnel and emerges at station 15. In the initial part of the tunnel the heating elements are more closely spaced than in the remainder of the tunnel, to bring the mould up to (rubber) curing temperature whereafter the temperature is maintained by the more widely spaced elements, the cure being eected by the time the mould leaves the tunnel. The heating current may be 18 volts at 50 cycles, or high frequencies may be used. The table 20 rotates on a ball race 22 on a bed 21 which houses an electric motor 23 which drives the table through gearing 24, and rack 24a. Each mould comprises a lower plate 43 secured to a platform 25 fixed to table 20, an upper plate 40 secured to rods 28 fixed to a hydraulic cylinder 29, and an intermediate cavitied plate 41 secured by lost-motion links 42, 45 to the other plates. Plate 40 has an injection passage 40a. The mould is closed by bringing the three plates together from the position shown on the left of Fig. 1 to the position shown on the right. In the closed position the contact surfaces are limited to lands of 3/16 inch width at the edge of the mould cavity, these lands being casehardened and ground: a mould clamping force of up to 7 tons prevents flashing. The plates are brought together by hydraulic pressure from pump 30 and rotary valve 31 acting to lower cylinder 29 about a verticallystationary piston rod 33. A screw type injector 50 driven by electric motor 53 is mounted on an arm 51 pivoted to a fixed support 52, and is rocked to and from mould-filling position by an air cylinder mechanism 55. The moulded article A is knocked off the sprue B at station 15, and the sprue is lifted out. One mould is filled whilst two moulds are being stripped.
Patent GB-568854-A (GB)
Title: Improvements in or relating to the production of knitted fabrics
IPC: D06C25/00
Filed: 1943-05-25
Abstract: To prevent the edge of a knitted fabric curling, plastic material is applied to the edge.  The material may be cellulose, acetate, vinyl resin, polystyrene, acrylic resin, cellulose nitrate or celluloid, rubber, wax or glue.  The knitted fabric may be of wool, cotton, rayon or glass filaments.  The applied material may be water-soluble when it is desired to be removed after completion of a finishing process, and may be applied by means of a nozzle, brush or roller. The edges of the fabric may be heated and have strips of thermoplastic material applied to it. In producing flat strips of fabric by cutting fabric knitted on a circular machine, the material may be applied to a longitudinal strip of the inside of the knitted tube and the tube cut along the centre line of the stiffening material.
Patent GB-249885-A (GB)
Title: Improvements in or relating to the valves of two-stroke internal combustion engines
IPC: F01L7/02
Filed: 1926-03-26
Abstract: 249,885. Acher, F. March 27, 1925, [Convention date]. Two-stroke engines.-In engines having pistons of two diameters, a rotary valve B revolving at crank-shaft speed controls the transfer from the pump space A of one cylinder to the working chamber C of the next cylinder by means of ports L, L<1> and a port D uncovered by the piston P<1> as shown in Fig. 1, and also controls the admission to the pump spaces through passage F and port L" as shown in Fig. 4. The valve shaft N may be used for the oil pump or fans.
Patent GB-456408-A (GB)
Title: Improvements in or relating to transmission mechanism
IPC: B60T11/06
Filed: 1936-03-20
Abstract: 456,408. Cams and tappets; brakeactuating mechanism. EDMONDS, A. S., Box 162, R.F.D. No. 2, Ossining, New York, U.S.A. March 20, 1936, No. 8372. [Class 80 (iii)] [See also Group XXXIV] A transmission mechanism has three displaceable transmission elements disposed in contiguous association about a common centre, actuable means individual to said elements acting thereon to maintain said elements in such association for outward displacement, and a floating master forcedistributing device for acting on said elements and simultaneously displacing the same outwardly against and causing actuation of said individual actuable means. The mechanism is applicable generally, but is described for actuating the brakes of a vehicle. The rear brake-rods 55, Fig. 1, and front brake-rods 59 are connected to levers 52, 58 respectively, pivoted at 53, 62, Fig. 3, to branches 32, 31 of a furcated casting 30. The other ends of these levers are connected to rods 48 carrying heads 48<1> which are pressed by springs 51 against balls 23 ... 27. Centrally over the three balls 23 ... 25 is located the master ball or, in a modification, a cone adapted to be depressed by the brake pedal to separate the other balls and actuate the brake shoes. The master ball 29, Fig. 4, is adapted to be depressed by a plunger 37, 38 actuated by a cam 47, Figs. 1, 4, connected to the brake pedal 17. In a modification, the levers 52, 58 merely abut the rods 48 instead of being jointed thereto. A safety plunger 64, Fig. 4, loaded by a spring 65 serves to prevent the master ball from assuming a locked position relatively to the three balls with which it contacts. The brakes of each pair of wheels are applied with substantially the same force. By varying the fulcra of the levers 52, 58 the braking forces applied to each pair of wheels may be varied. To ensure easy and uniform movement of the balls, the containing casing may be filled with lubricant.
Patent GB-557287-A (GB)
Title: Improvements in or relating to frequency conversion by thermionic discharge devices
IPC: H03B13/00
Filed: 1941-07-03
Abstract: 557,287. Thermionic valves. BENDIX AVIATION CORPORATION. July 3, 1941, No. 8416. Convention date, June 20, 1940. [Classes 39 (i) and 40 (v)] A thermionic valve for frequency multiplication or division comprises a cathode 12, a number of pairs of control electrodes 16, 18 ; 17, 19 equidistant from the cathode, and a circumferentially arranged series of anode segments 24, 25 joined together alternately to two output connections. A polyphase or split-phase supply is connected to the pairs of control electrodes which are so biased that a rotating beam of electrons sweeps over the anode segments and a different frequency appears at the output connections. By splitting the anodes into three or more sets a polyphase output is obtained. In the form shown, the control electrodes are supported from insulating discs 20, 21 carried by wires 22, 23 engaging peripheral grooves in the discs. Alternate anodes are connected and supported by hubs 26, 27 terminating output rods 39, 40, which at high frequencies may act as antennae. The steady anode potentials are applied through leads 30, 31 and choke coils 301, 311. As shown in Fig. 3, a supply 61 is split by condenser 67 and resistance 66. If the angle between the two supplies varies from 90 degrees, the speeds at which the beam traverses the anodes varies during the cycle, so that a varying frequency output is obtained, the extent of variation depending on the departure from 90 degrees.
Patent GB-654981-A (GB)
Title: Improvements in and relating to measuring or indicating instruments employing straingauges
IPC: G01L1/22
Filed: 1948-03-22
Abstract: 654,981. Wire-wound strain-gauge resistances. JONES, R. P. N., and THOMPSON, J. L. March 22, 1948, No. 8428. [Class 37] A strain gauge (Fig. 1), comprises two pairs of double supports 2, hinged together by a strip 1 of beryllium bronze or the like sandwiched therebetween, for relative angular movement against a constraint imposed by a pair of thin metal strips 3 bonded to each side of the supports to bridge the hinge, and each carrying a zig-zag length of insulated resistance wire 4. The abutting ends of the supports are chamfered, and the space therebetween is filled with material 5 of low elasticity such as hard rubber or plastic material to prevent transverse flexure. Angular deformation of the hinge varies the values of the wire resistances, which are measurable by a Wheatstone bridge to indicate the straining force. In a modification (Fig. 2, not shown), a pair of single supports are hinged together by a block of material such as hard rubber enclosed between the ends and the constraining strips which carry the resistance wires.
Patent GB-394774-A (GB)
Title: Apparatus for facilitating the proper festooning of linoleums, floor coverings, fabrics or such like which require to be dried or dealt with in festooned fashion
IPC: D06C29/00
Filed: 1932-03-22
Abstract: 394,774. Feeding webs. TOMLINSONS (ROCHDALE), Ltd. and TOMLINSON, G. C., Soho Works, Rochdale. March 22, 1932, No. 8436. [Class 100 (i).] The feed mechanism of a device for festooning linoleum, coated fabric, or other material where it is undesirable to touch the face of the sheet comprises a plurality of revolving conveyers including a travelling lattice adapted to be raised and lowered automatically so as to feed a succession of festoons to outriggers or other parts of the festooning device. To prevent slipping and other undesirable movement of the sheet, the aprons of the travelling conveyers are provided with a toothed or ribbed or other gripping surface, and/or are perforated so that suction may be applied to the sheet. In the form illustrated, sheet f is fed from a roller e to a conveyer g which grips and forwards it to the reciprocated travelling conveyer c which feeds forward the sheet, and is periodically raised slowly by an arm of the star-wheel b acting on projections c<1>, and then released and allowed to fall rapidly, whereby a festoon is formed over a bar a<1> of a receptor mechanism such as that described in Specification 206,161, [Class 34 (i), Drying gases &c.]. The main drive of the apparatus is on the shaft of the roller e ; the conveyer c is driven by a chain e<1> kept taut by a jockey pulley e<3>.