baber/WOPTO huggingface dataset:
Patent GB-1471832-A (GB)
Title: Digital filter
IPC: H04J3/02
Filed: 1975-05-07
Abstract: 1471832 Active filters INTERNATIONAL BUSINESS MACHINES CORP 7 May 1975 [21 June 1974] 19085/75 Heading H3U A digital filter provides an output signal whose samples are determined by adding up weighted samples of an input signal, with the weighting coefficients representing the deltacoded impulse response of the filter and comprises a circuit A 1 , A 2 , A 3 , A 4  to periodically feed samples of the input signal to the filter; a second circuit to circulate and sequentially read these samples, shift register SR3; a store ROS cyclically addressed by C to provide the weighting coefficients; an accumulator, ADD and REG, fed from the second circuit by a third circuit A5 to A8, inverters I1 to I5, OR Gates 05 to 08; with words inverted or not according to the value of the weight; coefficient; and a read out circuit, A13. A P.C.M. converter (not shown) may be used at the input to provide the samples and a delta decoder at the output to provide a filtered analog output signal. The operation is controlled by signals T1, T2 which have a higher frequency, 4 times higher in the embodiment, than the rate at which signal samples are presented to the filter. The output, controlled by T3, may also provide a higher rate of filtered samples.
Patent GB-588553-A (GB)
Title: Dial gauges
IPC: G01B3/22
Filed: 1943-11-16
Abstract: 588,553. Linear-dimension gauges. JONES (MACHINE TOOLS), Ltd., E. H., and HAMMETT, E. S. Nov. 16, 1943, No. 19144. [Class 106 (ii)] A dial gauge in which the indicator is operated by a pair of levers, has one lever 1 pivoted between its ends at 2 and adapted to engage the work at one end 4, the other end engaging the second lever 8, preferably by a pin-and-slot 9, near its end pivot 7, the other end of the second lever engaging the needle operating mechanism by means of a tooth which engages a spiral groove 11 on the spindle carrying said needle. The end 14 of a blade spring may engage in a slot in the lever 8 to take up backlash; the spring may be reversible. The work-contacting arm 4 may be angularly adjustable with respect to the remainder of the lever 1.
Patent GB-681898-A (GB)
Title: Improvements relating to chain pulley blocks
IPC: B66D3/26
Filed: 1951-08-14
Abstract: 681,898. Pulley-hoists. DE FRIES GES, H. Aug. 14, 1951 [Aug. 28, 1950] No. 19148/51 Class 78 (v). In a pulley-hoist the load chain wheel is replaced by a cylindrical pin 2 which has pockets 3 for the chain links and is secured rigidly to the wortn wheel 1. The pin is mounted in a bearing 5 which has openings 6 for the passage of the chain.
Patent GB-1268213-A (GB)
Title: Method of rolling wire in a group of driven roll units
Inventor: REICHERT FRITZ
IPC: B21B1/18
Filed: 1969-04-15
Abstract: 1,268,213. Rolling wire. SGHWERMASCHINENBAU ERNST THALMANN VEB. 15 April, 1969, No. 19173/69. Heading B3M. Wire is rolled in a continuous mill having horizontal-vertical or horizontal-horizontal two high roll units in a block arrangement, the roll grooves being of rhomboidal shape and the wire being fed from pass to pass with tension or loop formation. The sides 19 of the grooves 18 in each of the rolls are straight and are arranged at the same angle to the roll axis.
Patent GB-1425583-A (GB)
Title: Improvements in forage harvesters
Inventor: KIDD ARCHIBALD WATSON
IPC: A01F29/06
Filed: 1972-04-25
Abstract: 1425583 Forage harvester ARCHIE KIDD Ltd 17 April 1973 [25 April 1972] 19238/72 Heading A1F [Also in Division A4] The consolidating and feed roll mechanism of a forage harvester using a known pick-up reel 2 and auger 4, is contained in a feed chamber 8, and consists of upper and lower rollers 12, 14, affixed respectively to the end portions 20, 21 of elongate shafts 22, 24 driven from a gear box 26 through universal joints 28. The shafts 24 carrying the lower rollers 14 are fixedly mounted in bearings 30 attached to the feed chamber casing 10, while the upper shafts 22, carrying rollers 12, are mounted in floating bearings 31 at the free ends 34 of arms 32 located at right angles to the shafts 22 and pivoted at 35 to the harvester. Coil springs 36, between the bearings 31 and brackets 33 on the casing 10 provide a downward bias to arms 32. The belt driven gearbox 26 which has as many outlet shafts as there are rollers, is arranged to give appropriate speeds and directional rotation as required, and acts as a safety clutch in the event of an overload. In operation, as crop is fed into the rollers, the upper rollers 12 rise against the action of springs 36, and shafts 22 tilt about the universal joints 28. Since the shafts 22, 24 are relatively long, the loss in parallelity between the rolls 12, 14 is acceptably small.
Patent GB-596500-A (GB)
Title: Improvements in or relating to containers made from paper, cardboard or other wrapping material
IPC: B65D5/02
Filed: 1945-07-27
Abstract: 596,500. Cartons. KAY, J. A., ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), 'Ltd. July 27, 1945, No. 19280. [Class 18] A carton made from paper, cardboard or other wrapping material, and of the kind in which the end closure is.formed by outer flaps 18, 19, folded over and sealed upon inner flaps 16, 17 has the inner flaps interlocked so that each tends to support the other during the folding and sealing of the outer flaps. The inner flaps 16, 17 are formed with mutually opposed tongues 24, 27 and cut out portions so disposed that when the flaps are interlocked a portion of each tongue rests on top of the body portion of the opposing flap. The cut out portion in one flap may be in the form of a transverse slit, the tongue of the other flap being inserted through the slit during the folding operation.
Patent GB-1301188-A (GB)
Title: Substituted isoxazoles
IPC: C07D307/54
Filed: 1970-04-22
Abstract: 1301188 Nitrofuran derivatives R & L MOLECULAR RESEARCH Ltd 22 April 1970 [24 April 1969] 19367/70 Heading C2C [Also in Division A5] The novel compounds, methyl and ethyl 5- (5-nitro - 2 - furyl) - 3 - methylisoxazole - 4- carboxylates, are prepared by (a) treating methyl or ethyl 5-(2-furyl)-3-methylisoxazole- 4-carboxylate with an excess of a nitrating agent comprising a mixture of nitric acid and acetic anhydride, or (b) reacting methyl or ethyl acetoacetate with 5-nitrofuryl chloride and treating the resulting methyl or ethyl α-(5-nitrofuroyl)-acetoacetate with hydroxylamine hydrochloride or sulphate. Ethyl 5-(5-nitro-2-furyl)- 3-methylisoxazole-4-carboxylate can also be prepared by treating methyl 5-(5-nitro-2-furyl)- 3-methylisoxazole-4-carboxylate with a mixture of hydrochloric and acetic acids to form the corresponding acid, reacting the acid with thionyl chloride to form the acid chloride, and reacting the acid chloride with ethanol. Methyl and ethyl 5-(2-furyl)-3-methylisoxazole 4-carboxylates are prepared by reacting methyl or ethyl acetoacetate with furoyl chloride and treating the resulting methyl or ethyl α-furoylacetoacetate with hydroxylamine hydrochloride
Patent GB-709072-A (GB)
Title: Improvements in or relating to forging machines
IPC: B21J9/18
Filed: 1951-08-16
Abstract: 709,072. Forging-machines. MASCHINENFABRIK HASENCLEVER AKT.-GES. Aug. 16, 1951 [Aug. 30, 1950], No. 19368/51. Class 83 (4) A horizontal forging machine having independently driven upsetting and clamping means is characterized by two cranks or eccentric drives each having a driving motor, couplings, brakes and control mechanism and also a connecting rod, one of the rods acting directly on the upsetting slide and the other on the clamping slide. The upsetting slide 3 is moved by a crankshaft 1 and a connecting rod 2 driven by a motor 9 through vee belts 10, gears 4 and 5 and a multidisc friction clutch 8 in a flywheel 7 on a shaft 6. The clamping slide 11 is similarly though independently moved by a motor 16 through a crankshaft 13, a connecting rod 12, vee belts 17 and a multi-disc friction clutch 15 in a flywheel 14 mounted on the crankshaft 13. Multi-disc brakes 18 and 19 are provided on the shafts 6 and 13 respectively. The clutches 8 and 15 are operated by air-pressurized pistons 20, 21 and release springs 22 and 23 respectively and controlled electromagnetically by push buttons 29. In operation, the prime movers 9 and 16, their flywheels 7 and 14 and the outer discs of the clutches 8 and 15 run continuously. The work piece is inserted in the die 27 of a clamping jaw 28. The operator depresses the push button 29 and compressed air is admitted to the clutch pistons 20 and 21 so that the clutches engage and transmit motion to the slides 3 and 11. The crankshaft 13 rotates at a faster speed than the crankshaft 1 so that the clamping slide 11 completes its stroke and grips the workpiece firmly betwen the jaws 28 and 33 before the upsetting slide 3 has begun its working stroke. The clamping slide is arrested in its closed position by a cam 30 on the crankshaft 1 which engages an electrical switch 39 which causes a valve 32 to release the compressed air from the clutch 15 to disengage the clutch whereupon the brake 19 arrests the shaft 13. After the upsetting operation the slide 3 is arrested in its initial position by means of a cam 35 which engages an electrical switch 36 which operates a valve 37 to disengage the clutch 8 and actuate the brake 18. Just before this a cam 38 on the shaft 1 actuates the switch 39 to engage the clutch 15 and return the clamping slide 11. Both slides arrive at their initial positions at the same time. The clamping slide 11 may also carry out a transverse upsetting operation on the workpiece if desired. Planetary gearings with brakes may replace the multi-disc friction clutches.
Patent GB-753576-A (GB)
Title: Improved valve mechanism
Inventor: DEWAR DOUGLAS
IPC: F16K39/02
Filed: 1953-07-14
Abstract: 753,576. Valves. DUNLOP RUBBER CO., Ltd. June 22,' 1954 [July 14, 1953], No. 19441/53. Class 135. A fluid-pressure regulator has a tubular valve member 20 stepped between its ends so as to be pressure balanced and slidable within or without a fixed cylindrical part 17 to control radial ports 18 by which an inlet 30 and outlet 2 are interconnected. The lower end of the valve member 20 is chamfered to a knife-edge 22 to coact with a sealing washer 19, and the upper, reduced part 23 slides in lubricating and sealing washers 24, 25. A spring 26 maintains the valve member in contact with a flat, T-shaped member 31 which abuts near its lower end a tubular extension 13 of an exhaust valve seat 10 which coacts with a spring-loaded exhaust valve member 6 and is movable downwardly to an extent determined by an annular stop 7. A sealing washer 15 is fitted against the rear part of the seat 10 and a lubricating washer 16 encircles the extension 13. A cylindrical filter 29 surrounds the lower part of the valve member 20. Upon increase of pressure in the outlet 2, the valve member 20, T-shaped member 31, exhaust valve seat 10 and exhaust valve member 6 are moved against the loading springs 4, 5 of the latter until the ports 18 are closed, whereupon any further rise of pressure in the outlet moves the exhaust valve member away from its seat which is arrested by the stop 7 to permit exhausting through an annular recess 32 communicating with atmosphere.
Patent GB-532116-A (GB)
Title: Improvements in or relating to magnetic recording and reproducing apparatus for use with steel bands, wires or the like
IPC: G11B5/127
Filed: 1939-07-04
Abstract: 532,116. Magnetic sound recording and reproducing. CONTRAVES AKT.-GES. July 4, 1939, No. 19472. Convention date, March 13. [Class 40 (ii)] In apparatus for magnetically recording and reproducing sound or the like on and from steel bands, wires and the like, the magnetic poles have flat, thin, long magnetic extensions GO, DF parallel to and uniformly spaced from the steel band or wire, this producing a slow uniform drop of magnetic potential along the extensions and ensuring good quality recording and reproduction. The ends of the extensions may be bridged by a yoke 4 of good magnetic conductivity. The extensions may vary gradually in cross-section ; or, the extensions may each have an oblique slot 5 filled with a material of very high magnetic resistance such as brass.
Patent GB-1520194-A (GB)
Title: Shear connector for concrete in a composite beam
IPC: E04B5/29
Filed: 1976-05-12
Abstract: 1520194 Shear connectors HILTI AG 12 May 1976 [9 July 1975] 19530/76 Heading E1W A shear connector for use on a steel girder in conjunction with e.g. a concrete floor, has a foot 1, upstanding web 3 and ribs 4, 5 which support the web and are attached to the foot away from, and outside, attachment points e.g. holes 8 for fixing the foot to the girder. The connector is preferably fastened to the girder by explosive-driven fasteners 12, and in this case hollow conical pimples 7 allow material 13a from the girder to flow in around the fasteners 12, whilst washers 14 prevent complete penetration of the fasteners. The spacing of the ribs from the holes 8 allows deformation of the foot and ribs to absorb bending strains.
Patent GB-375561-A (GB)
Title: Variable pitch propeller
IPC: B64C11/42
Filed: 1931-07-07
Abstract: 375,561. Screw propellers. ECLIPSE AVIATION CORPORATION, 545, North Arlington Avenue, East Orange, New Jersey, U.S.A. July 7, 1931, No. 19536. Convention date, July 11, 1930. [Class 114.] A variable pitch screw propeller of the kind wherein the pitch is varied by longitudinal displacement of the boss on'the driving shaft is provided with means for altering the pitch of the blades by a hydrostatic pressure created by centrifugal force. Shaft 11 is provided with a block 12 upon which the boss 16 may slide. The boss carries spigots 18 in which the blades 10 are rotatably mounted and at the base of each blade is mounted a spur wheel 29 engaging a rack 30 which protrudes beyond the boss and is attached to an extension flange of the base 35 of a cylinder which is secured to the block 12 at 36. Projecting from the boss are pillars 37 which are secured to a piston 33 in a cylinder 32. In the enclosed space, a liquid 38 such as mercury is placed which does not entirely fill it. Under working conditions as the speed increases this liquid tends to escape at the outer rim of the space and the piston is moved accordingly and in turn moves the boss longitudinally and so alters the pitch of the blades. In the central portion of a cavity air is entrapped from an orifice 40 and tends to augment the hydrostatic pressure of the mass of liquid. In order to neutralize movements of the boss responsive to the thrust of the propeller, springs 41 are interposed between the boss and the base 35. The boss is normally held back by the springs with the blades at maximum pitch. Adjustable stops are provided for limiting the forward movement of the boss and thus the minimum pitch.
Patent GB-652007-A (GB)
Title: Improvements in and relating to magneto-mechanical convertors
IPC: H03H9/50
Filed: 1948-07-21
Abstract: 652,007. Electromechanical filters. HASLER AKT.-GES. WERKE FUR TELEPHONIE UND PRAZISIONSMECHANIK. July 21, 1948, No. 19548. Convention date, July 22, 1947. [Class 40 (viii)] An electromechanical band filter includes at least one sintered ferrite element excited to mechanical oscillation in a magnetic field. The band filter shown includes a sintered ferrite plate A set in torsional oscillation by the input magnetic circuit B. The plate A forms the top of a stack of plates connected by rods F, G, H and J and a central connector R, the torsional oscillations being transmitted down the stack to output plate M. This plate is also made of sintered ferrite but the intermediate plates may be made of aluminium. The spacing of the connecting rods determines the band width of the filter.
Patent GB-740141-A (GB)
Title: Improvements in and relating to surgical sutures
IPC: A61L17/08
Filed: 1954-07-05
Abstract: Proteinaceous sutures are kept in a sealed container containing tertiary butyl alcohol.  Up to 15 per cent of water may be admixed with the tertiary butyl alcohol.  Phenyl mercuric benzoate may be added to the mixture as an antiseptic.
Patent GB-985716-A (GB)
Title: Copolymers of ethylenimine and 1,2 propylenimine and a process for their production
Inventor: STANGER HANS
IPC: D21H17/56
Filed: 1963-05-17
Abstract: The invention comprises copolymers of 20 to 80% by weight of ethylene imine and 80 to 20% of 1,2-propylene imine.  The preferred copolymers have, as 50% aqueous solutions, viscosities of at least 100 poises, corresponding to molecular weights of at least 10,000.  They may be prepared by cationic polymerization, preferably by acid or acid-forming substances, e.g. carbon dioxide or 1,2-ethylene dichloride, in aqueous solutions.  The preferred copolymers contain 35 to 65% of each imine.  In a comparison with other polymers, a mixture of equal parts of homopolymers of ethylene imine and propylene imine is specified as a 50% aqueous solution.  Uses.-In the paper industry for increasing freeness and wet tensile strength and as a flocculation and clarifying agent.ALSO:Copolymers of 20 to 80% by weight of ethylene imine and 80 to 20% of 1, 2-propylene imine are used in the manufacture of paper for increasing freeness and wet tensile strenth and as a flocculating and clarifying agent.  They are used as 50% by weight aqueous solutions.  Comparisons are given with homopolymers of ethylene imine and propylene imine and mixtures thereof.
Patent GB-761610-A (GB)
Title: Improvements in or relating to harvester machines
Inventor: ORFORD ROBERT JAMES RANSOM
IPC: A01D34/66
Filed: 1954-07-05
Abstract: 761,610. Hay-harvesters. PULLMAN SPRING-FILLED CO., Ltd. June 29, 1955 [July 5, 1954], No. 19664/54. Class 6(3). Relates to a hay-harvester of the type described in Specification 731,291 and comprising a pair of disc-cutters 8, 9 rotating about vertical axes adjacent to the mouth of a suction conduit 3. The invention comprises an attachment for such a machine consisting of a further disccutter 29 rotatable on an axis parallel to those of the discs 8, 9, and carried by a frame 16 readily attachable to the harvester frame 2 at a position laterally offset from the existing cutters. The frame 16 comprises outwardly-convergent channel members terminating in a vertical V- block 20 against which the sleeve carrying the cutter-spindle may be held by a U-bolt 23. The cutter is driven by a belt 28 from one of the existing belt-pulleys 6. An extension-guard 32 is attached to the existing cutter-guard 31 to surround the cutter 29. Specification 756,964 also is referred to.
Patent GB-658318-A (GB)
Title: Improvements in or relating to boathooks
IPC: B63B17/00
Filed: 1949-07-27
Abstract: 658,318. Boat hooks. OLNEY, B: H. July 27, 1949, No. 19695. [Class 113 (i)] A boat-hook comprises a head A formed of a non- corrosive alloy of high tensile strength and having a hollow stem 1 which terminates in a solid hookshaped end 2, the stem being fixed on a light metal alloy tube 7 forming the shaft. A hook-shaped cutting blade 4 having a lug 5 may be detachably secured to the head by a bolt which passes through a bolt-hole in the. head. When the cutting blade is not fitted the bolt-hole in the head can be used for line passing by means of a very light lashing fixed by the aid of the hole.
Patent GB-415250-A (GB)
Title: Improvements in or relating to junctions or connections for use in the assembly of perforated strips and the like
IPC: A63H33/12
Filed: 1933-07-12
Abstract: 415,250. Toy building-parts. LINES BROS., Ltd., Morden Road, Merton, London.- (Kellner, G. ; 16, Lutherstrasse, Leipsic, Germany.) July 12, 1933, No. 19713. [Class 132 (iii).] A junction device for use in the assembly of perforated strips comprises a flat plate adapted to be bolted to a perforated strip, said plate having a bolt hole in either end, a series of perforations or recesses disposed in a circle concentric to one of the said bolt holes and two or more studs or projections disposed concentrically to the bolt hole in the other end. Structural members 2, 3 in the form of wooden laths or strips are connected together by flat plate junction pieces 7, 8 and an angled junction piece 6. The flat plate junction pieces 7, 8 have at one end a series of locking holes or recesses 10 concentric with a bolt hole 9 and have at the other end a bolt hole 9 with two or more concentric projections or studs 11. The adjustable or inclined angle-piece 6 has in each side a series of looking holes or depressions 10 concentric with a bolt hole 9, for adjustable engagement with the studs or projections of the pieces 7 and 8. Nuts and bolts 5 are applied to the bolt holes 9 and pass through spaced perforations in the members 2 and 3. On the lefthand side of Fig. 1 structural members 1 and 2 are connected together by an ordinary angle piece with a bolt hole in each side. Fig. 5 shows two structural members 2 and 3 connected together in the same plane by junction pieces 7 and 8.
Patent GB-1535470-A (GB)
Title: Method of encapsulating watersoluble materials
IPC: A23L27/00
Filed: 1977-05-11
Abstract: 1535470 Encapsulation POLAKS FRUTAL WORKS Inc 11 May 1977 [12 May 1976] 19783/77 Heading B8C Water soluble materials such as flavours and perfumes are encapsulated in water soluble wallforming materials by initially emulsifying them in a water-insoluble oil using a specified surfactant-polyoxyethylene (20) sorbitan tristearate. The emulsion is then suspended in an aqueous solution of a wall former such as starch and spray dried whereby the water soluble material is encapsulated.
Patent GB-311979-A (GB)
Title: Process for the production of a sugar solution
IPC: C13K1/06
Filed: 1928-07-07
Abstract: 311,979. Cross, E. J., (Langfeldt, E.). July 7, 1928. Glucose. - A sugar solution suitable for the manufacture of yeast as well as for other purposes is obtained bv acid saccharification of the solid constituents of roots of the Manihot plant from which a substantial proportion of the constituents of the amniotic fluid of said roots has been removed. The roots are washed, pressed, dried, mixed with dilute acid and heated. The solution may be neutralized with ammonia if it is to be used for the production of yeast or alcohol, or glucose may be obtained therefrom.
Patent GB-961992-A (GB)
Title: Apparatus for molding shoes
IPC: B29D35/00
Filed: 1961-06-01
Abstract: 961,992. Moulding soles on to shoe uppers. INTERNATIONAL VULCANIZING CORPORATION. June 1, 1961 [June 6, 1960], No. 19815/61. Heading B5A. Apparatus for moulding soles on to uppers comprises a pair of lasts 36 mounted one each end of a piston 34 movable in a cylinder 32 mounted on a horizontal shaft 28 for rotation to bring first one and then the other last 36 into a position above the mould 12, the last then being lowered on to the mould 12 which is split medially so that the halves may be moved together to form a mould cavity and apart to permit removal of the finished shoe. The pneumatically operated control system includes control valves V1, V2 and four motors. The cycle consists of the following steps, the mould halves are separated, a rack 48 and pinion 50 device for causing rotation of the lasts about the horizontal shaft is disconnected, the piston 34 carrying the lasts 36 rises, the rack 48 is rocked back into engagement with the pinion 50 fastened to the shaft 28, so that the shaft 28 is rotated and hence the last 36 with the finished shoe is moved to the top and vice versa. Unvulcanized sole blanks can be placed between the mould halves or thermoplastic material can be injected into the mould. The use of a plurality of apparatuses on a rotary table or endless belt is suggested.