baber/WOPTO huggingface dataset:
Patent GB-1450232-A (GB)
Title: Treatment of hides
IPC: C14C1/00
Filed: 1975-01-23
Abstract: 1450232 Treatment of hides ROHM GmbH 23 Jan 1975 [1 Feb 1974] 3047/75 Addition to 1450231 Heading C6C Hides are prepared, prior to tanning, by treating the hide, essentially free of preserving salt, with an aqueous solution having a pH from 9 to 12 and containing (a) a fungal protease having an optimum activity relative to casein at pH > 7À0, trypsin, papain or a bacterial protease having an optimum activity relative to casein at pH from 6 to 9, or a mixture of two or more such substances; (b) a bacterial protease having an optimum activity relative to haemoglobin at pH > 9À0; and (c) thioglycolic acid or a salt thereof e.g. the ammonium, sodium or calcium salt, whereby soaking, dehairing, skin loosening and bating of the hide is effected. The fungal protease may be derived from an Aspergillus culture e.g. Aspergillus flavus or Aspergillus niger and the bacterial protease having an optimum activity relative to casein at a pH of from 6 to 9 may be derived from a culture of Bacillus subtilis of the mesentericus group, Bacillus natto, Streptomyces griseus, Bacillus cereus or Bacillus mycoides.
Patent GB-556641-A (GB)
Title: Improvements in or relating to means for generating oscillatory electric currents of precise frequencies
IPC: H03J5/02
Filed: 1942-03-11
Abstract: 556,641. Indicating apparatus. FINDEN, H. J., and PLESSEY CO., Ltd. March 11, 1942, No. 3235. [Class 37] [Also in Groups XL and XXXVIII] A generator for producing a precise irequency comprises a controlled multi-vibrator 23 feedinga harmonic selecting amplifier26 or which the output is applied to a balanced modulator C which is also led with trequency derived from an inverter or phase-splitting valve 90 fed with a frequency representauve or the following digits derived from a similar balanced modulator B. To provide adequate separation oetween the modulating irequencies and the output if the modulator C is led with harmonics of 1 Mc. and the modulator B with harmonies of .1 Mc. frequencies up to .5 Mc. are obtained by using the dinerence between their complements and the next highest harmonic from the 1 Mc. unit instead of by simple addition as in the case ot frequencies. above .5 Mc. In this way adequate filtering in the amplifiers F1, F2, F3 preceding the inverter valves 78, 90, 97 is obtained. A voltmeter 103 may be associated with the output to facilitate the tuning of the filters which is effected on each range successively by operating the switch 7U which connects the outputs to the inverter valves 69, 78, 90, 97 alternatively to the output. When a digit is O the preceding modulator is unbalanced by operation of the appropriate switch 100, 101, 102. The stages may produce frequencies related by some other scale than the scale of 10. Indicating scale.-Fig. 2 shows the indicating dials for switches 29, 41, 54, 64 for selecting the harmonics operated by knobs 110 - 113 which are provided with 8 scales and masks 116 each formed with 8 windows 117 arranged in a spiral the masks being geared together and to a knob 119 having an indicator to show the scale used. By this means the switches may be set to indicate (1) the frequency indicated by the scale, (2) the next higher frequency, (3) the complementary frequency to that indicated, (4) the complementary frequency to the next higher frequency. In this way the required frequency is derived from the sum or difference frequency necessary to facilitate filtering and a cam 134 is driven to illuminate the appropriate scale associated with the filter tuning knobs 122, 126, 135. The correct mask position and the appropriate switch operation for unbalancing a modulator may be ascertined from a table, Fig. 3 (not shown), or by an indicator, Fig. 5, in which setting of switches 151, 160, 164, 172 cause operation of one of the indicating lamps 1 - 8 and one of the lamps A, B, C indicating the unbalanced modulator and effecting the unbalance at contacts 1001, 101<SP>1</SP>, 1021 under the control of series relays so that a modulator is unbalanced when there is no output from the filter feeding that modulation. The Provisional Specification describes a system of setting the oscillator to the required frequency in accordance with the digit values with the aid of four colour scales.
Patent GB-978876-A (GB)
Title: Improvements in or relating to epoxy resin compositions
IPC: C08G59/50
Filed: 1963-01-25
Abstract: Heat curable compositions comprise a diglycidyl ether of a polyalkylene glycol having the general formula:- <FORM:0978876/C3/1> in which R is an alkylene radical having 2 to 5 carbon atoms and n is an integer from 2 to 50, and a fatty guanamine having the general formula:- <FORM:0978876/C3/2> <FORM:0978876/C3/3> <FORM:0978876/C3/4> and <FORM:0978876/C3/5> in which R1 is an aliphatic group having 4 to 21 carbon atoms and R2 is a divalent hydrocarbon group derived from a dimerized unsaturated fatty acid.  A portion of the diglycidyl ether of a polyalkylene glycol may be replaced by an epoxy resin prepared from a polyfunctional epoxy resin and a polyhydric phenol which may be a phenol-aldehyde condensation product. The compositions may be used as such or may be first partially reacted to give a curable, homogeneous reaction product or B-stage resin. Dicyandiamide may be added to the unreacted composition prior to curing or partial reaction or may be added to the B-stage resin prior to curing.  The compositions and the B-stage resins may be used as adhesives, coatings and sealants and in the preparation of laminates. Specifications 963,507, 965,588, 969,256 and 969,257 are referred to.
Patent GB-496783-A (GB)
Title: Combined impact mill and sifter installation
IPC: B02C13/13
Filed: 1938-02-03
Abstract: 496,783. Impact pulverizers. LEHMANN, F. B., (trading as LEHMANN, J. M., [Firm of]). Feb. 3, 1938, No. 3353. Convention date, March 3, 1937. [Class 59] An impact pulverizer comprises beaters b working in conjunction with an adjustable bar k disposed above a radial feed inlet o supplied with material from a hopper d. Air passes peripherally into the casing through passages c and additional air may enter through lateral inlets in the side of the casing, the ground material being carried by the air past an adjustable flap i into a centrifugal separator g, the air being exhausted by a fan. Separated material is diverted by flaps i, m, n to the beaters, feed hopper or feed inlet respectively.
Patent GB-409475-A (GB)
Title: Means for opening closed sheet-metal containers such as preserve cans and the like
Filed: 1933-02-04
Abstract: 409,475. Opening preserve tins &c. AKTIEBOLAGET TRANSITORIA, 37, Birgerjarlsgatan, Stockholm. Feb. 4, 1933, No. 3475. Convention date, Feb. 12, 1932. [Class 66.] An opener 5 is attached to a part 4<a> of a wall of a preserve tin &c. limited by a weakening line 4 by means of a rivet 6 the inner end of which is provided with an enlarged head 12 of sufficient size to retain a packing between the head and the inside of the can wall to provide against leakage through the rivet hole and to form a re-inforcement for the wall at the point of attachment. The packing may be of indiarubber &c. and may be disposed in an annular groove or recess formed in the face of the head adjoining the wall of the tin. Opening is effected by turning the opener 5 into the position shown in dotted lines at 5<b> before raising it to rupture the metal at the weakening line and effect removal of the part 4<a>. Specification 399,036 is referred to.
Patent GB-122306-A (GB)
Title: Improvements in or relating to Match Box Holders.
Inventor: MARKHAM MORDECAI LOUIS
IPC: A24F27/04
Filed: 1918-02-27
Abstract: 122,306. Markham, M. L. Feb. 27, 1918. Match-box holders.-A match-box holder, which may be made by bending a sheet A of metal, celluloid, &c., to the shape shown and be provided with side pieces B to maintain the match-box F in place, is formed with a hook C for hanging upon a gas-pipe, chair, &c., this hook having a notch at its end D, whereby the holder may, when desired, be supported on a nail on a wall. A finger-hole in the base E permits of pushing up the metal-box when a match is required. The casing A may be roughened or may carry emery paper, &c. The holder and notched hook may be made of wire bent to form a skeleton construction.
Patent GB-1398054-A (GB)
Title: Method of bonding components together by explosive welding  and a device for use in the method
IPC: B21D39/00
Filed: 1973-01-24
Abstract: 1398054 Welding by pressure GEORG FISCHER AG 24 Jan 1973 [9 Feb 1972] 3519/73 Heading B3R In explosively bonding a metal plate 29 to a surface or surfaces of a metal workpiece or workpieces 41 the plate 29 (the first plate) is supported in an aperture in a second plate 28, explosive material 19 is placed on one side of the two plates to extend over both plates and with the plates arranged over the workpiece or workpieces with the first plate 29 parallel to the surface or surfaces of the workpiece or workpieces the explosive material is detonated to cause the first plate 29 to separate from the second and impact against the surface or surfaces of the workpiece or workpieces. Two iron strips 41 to be welded are held together in a holder 43 and positioned upright in a slot 6 in the base 3 of a foam plastics container 1. A plate assembly 26 formed of a central elongated plate 29 surrounded by an outer plate 28 forms the base of a container 16 for explosive 19, the container 16 being held in the container 1 by supports 23 with the assembly 26 above the strips 41. The plate 29 is wider than the total width of the upper surface of the strips 41. A heavy granular material 50 is provided in the container 1 to surround the containers 16 and tube 7 is provided to support the detonator for the charge 19. When the explosive is detonated the plate 29 is hurled from the aperture in the plate 28 and is welded to the edges of the strips 41. A cable end with or without a shoe may be held securely to a rail using a bonding plate similar to that used in the construction of Figs. 1 and 2 which becomes welded to the rail on each side of the cable end. Flat metal sections, earthing strips and bus-bars may be bonded by the method of the invention.
Patent GB-718625-A (GB)
Title: Improvements in flanged and bolted pipe joints
Inventor: WEBB THOMAS BASIL
IPC: F16L23/24
Filed: 1952-02-11
Abstract: Three alloy steels for the parts of a pipe joint contain (1) 2.25 per cent. chromium, 1 per cent. molybdenum with a coefficient of thermal expansion of 7.8 x 10-6; (2) 17 per cent. nickel, 17 per cent. chromium, 3 per cent. manganese, 2.5 per cent molybdenum, 7 per cent. cobalt, 1.8 per cent. niobium, with a coefficient of 8.9 x 10-6; (3) 18 per cent. chromium, 12 per cent. nickel, 1 per cent. niobium, with a coefficient of 10 x 10-6.
Patent GB-111027-A (GB)
Title: Apparatus for Teaching Signalling in Morse or other Codes.
Inventor: GREEN FREDERICK WILLIAM
IPC: G09B19/26
Filed: 1917-03-10
Abstract: 111,027. Green, F. W. March 10, 1917. Signalling; teaching.-The device consists essentially of a series of cards having the letters or symbols (" dots," " dashes," &c.) marked on or cut in them, which cards are placed in a casing provided with means for feeding them one at a time past an aperture. The cards are made of different lengths so that the correct spacing may be obtained. Figs. 1 and 2 show one construction. The marked cards b are placed in a casing a provided with a feed wheel f operated by the ring k. The cards are pressed against the wheel by a spring d or by the thumb, and the casing has an extension h fitted with an aperture i, which may be circular as shown, or a long slot when used for flag signalling. A fitting may be provided for readily changing the aperture. Instead of a ring k a crank handle may be provided. The cards may be marked with dots and dashes, differently coloured bands, or a sinuous line, &c.
Patent GB-524866-A (GB)
Title: Improvements in and relating to the construction and assembly of inter-fitting machine and like parts
IPC: F16C11/02
Filed: 1939-02-03
Abstract: 524,866. Facilitating engagement of shafts, bushes &c. in holes. OSWIN, J. Feb. 3, 1939, Nos. 3588 and 26765. [Class 83 (iii)] [Also in Groups XXIV, XXV and XXXIV] Interfitting machine parts such as, bushes, liners, sleeves, shafts, pins, spindles and the like have the leading end of the male portion, or the outer end of the female portion formed so that as the parts are assembled the lateral extent of contact between them increases from a minimum near the end to a maximum at a' place further from said end. As applied to a shaft, the entering end 3, Fig. 1, is formed conical at 4 over an angle preferably exceeding 180 degrees, the axis of the cone being inclined to the axis of the shaft and the portion 5 being left of full diameter and axial length to provide a lateral support when entering the shaft in a hole. The central bore of a milling cutter 6, Fig. 4, is similarly coned at 4a. As applied to a bush, 7, Fig. 6, the bore may be coned at 4a to receive a pin and the exterior may be relieved uniformly at 14 around part of the circumference, the remaining portion 15 being of full diameter. A multi-diameter pin for use on a jig-plate Fig. 8 (not shown), may have conical and parallel relieved ends on the portions of different diameter. As applied to a ball bearing the outer member 11, Fig. 13, may have one end relieved by a conical portion arranged either inclined or parallel to the axis, or by a number of conical portions 17 with other parts of full diameter between. In a further modification a shaft has two opposed conoidal portions 4f, 4g, Fig. 16, with full diameter portions between them and in another form the shaft is provided with an eccentric end 2, Fig. 18, merging at one side 16 into the unbroken surface of the shaft. A groove 19, Fig. 21, either continuous or in sections as shown, may be formed behind the relieved end 4 to accommodate foreign matter which may prevent engagement. A pilot may be applied to the end of a shaft &c. having a coned &c. end for insertion in the part which is to receive the shaft and a coned spigot for removably inserting it in the end of the shaft. In another modification Fig. 26, the engagement is facilitated by backing off the leading or receiving end around a part or parts of the periphery by a discontinuous annular groove 22.
Patent GB-1291374-A (GB)
Title: Material distributors
Inventor: SCHOEN GERALD L
IPC: A01K5/02
Filed: 1970-01-26
Abstract: 1291374 Reciprocating conveyers BADGER NORTHLAND Inc 26 Jan 1970 [28 Jan 1969] 3620/70 Heading B8A A distributer for livestock feed comprises a reciprocable carriage 26 provided with trays 80 for receiving the feed, the trays being pivotable for unloading into a feed bunk 10. The carriage 26 runs on rails 22 and is propelled longitudinally of the feed bunk 10 by a cable 40 whose ends are secured at 42, 50 to the carriage. A reversible drive 46 includes drums 64, 74 which frictionally engage the cable 40. Each tray 80 is secured to a shaft 82 pivoted to the carriage 26, the shafts 82 being rotated through 60 degrees clockwise and then 60 degrees anticlockwise when the crank-shaft 110 of a motor 108 rotates through 360 degrees. The trays 80 are thus pivoted for unloading, Fig. 4, and then returned to their initial feed-receiving position, Fig. 1. The carriage 26 moves towards one end of the feed bunk until a switch 128 on the carriage contacts a stop 130 to interrupt the drive 46 and to energize the tray-tipping motor 108. After one revolution of the crank 110, a switch 132 stops the motor 108 and starts the carriage drive 46 which moves the carriage to the other end of the feed bunk where another stop 130 operates as before. As the carriage moves along the bunk, feed is deposited in the trays by a conveyer 126. The rails 22 may be mounted for movement perpendicular to the feed bunk so that one distributer could serve more than one bunk. A feed area may be used in place of feed bunks. In a modification, Fig. 5 (not shown), the tray-tipping operation is initiated when an arm (98) connected to the trays engages a spring stop (106).
Patent GB-657444-A (GB)
Title: Improvement in anchoring means for the refractory brick lining of furnace walls
IPC: F27D1/16
Filed: 1949-02-10
Abstract: 657,444. Furnace walls. TONNESON, P. Feb. 10, 1949, No. 3716. [Class 51(i)] A furnace wall intended particularly for marine boiler furnaces comprises an outer casing formed of double metal sheets 1 and 2 with nuts 17 welded to the outer sheets 1 at intervals said nuts lying flush with the face of the inner sheets 2 and carrying L-shaped bolts 14, an insulating layer formed of bricks 3 disposed between tie-in blocks 11 formed with recesses 16 cooperating with and enclosing the bolts 14, and an inner refractory section formed of bricks 4 and double width recessed bricks 5 and 6 enclosing the inner flared shoulders 12 and 13 of the tie-in blocks 11. The whole assembly forms a refractory wall with easily replaceable sections, relieves the bolts of undue strain and gives them a protective covering.
Patent GB-293658-A (GB)
Title: Improved polishing device
IPC: B24D13/08
Filed: 1928-02-08
Abstract: 293,658. Ludorf, G., Hof, W., K³ch. K., and Schulte, A. Feb. 8, 1928. Wheels.-A polishing-wheel comprises a num. ber of discs 1 - - 3, Fig. 3, each consisting of a single convolution cut from a helical ribbon, Fig. 1, which is made by a weaving knitting or other process. The cut edges of each convolution are sewn together at 7 the joins being covered by strips of fabric and arranged along different radii of the completed wheel, Fig. 4. In a modification, Fig. 7, fabric layers 9 may be stitched on one or both sides of each disc.
Patent GB-1181821-A (GB)
Title: Improvements in and relating to Homopolar Electrical Machines
Inventor: APPLETON ANTHONY DEREK
IPC: H02K31/02
Filed: 1967-01-03
Abstract: 1,181,821. Homopolar machines. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. 2 Jan., 1969 [3 Jan., 1967; 26 Jan., 1967 (2)], Nos. 371/67, 3981/67 and 3982/67. Heading H2A. The voltage of a homopolar motor or generator is increased by subdividing the rotor into a plurality of conducting paths, a proportion of which are connected in series by means of interconnected fixed brushes. As shown in Fig. 1, a disc or drum type rotor is cut into strips 1a-1j having contact segments 2a-2j at one end and contact segments 3a-3j at the other. These segments are engaged by brushes spaced by two or more times the spacing of the strips so that only a proportion are connected for most of the time. The machine has terminals T 1  and T 2 . If desired (Fig. 3, not shown) two such discs may be secured back-to-back and connected in series by external brush connections. In an analogous drum-type machine, Fig. 7, the rotor carries conductors 48, embedded or otherwise, and connected to contact segments 50, 51, the brush-current being taken back through the working gap by conductors 53. These may be embedded in the poles or simply lie in the air-gap, and they may be skewed. Instead of using the brush connections to produce a series path, the segments 26, 27 may, as shown in Fig. 5, be interconnected by conducting links 36, 38 passing through the supporting disc 25 to the outer contact segments 29, 34 secured to but insulated from the other disc. The conducting paths on the rotor may be rods instead of strips while the brushes may be graphite, wire or liquid.
Patent GB-1370121-A (GB)
Title: Starter motors for internal combustion engines
IPC: H02K1/18
Filed: 1972-02-04
Abstract: 1370121 Dynamoelectric machine JOSEPH LUCAS (INDUSTRIES) Ltd 4 Feb 1972 [5 Feb 1971] 4093/71 Heading H2A In a starter motor, for an I.C. engine, comprising a commutator 25 carried by a rotor shaft 22 and engaged by brushes 19 mounted on the stator, the stator includes a casing comprising two cylindrical portions 11a 12a, overlapping the outer surface of and secured by screws 26, 27, to a field assembly including a cylindrical sleeve 13 carrying poles 14, 15 on its inner surface. The motor shown has four stator poles secured by screws 17 to the sleeve 13 and carrying a wave wound field winding held in position by flanges, e.g. 14a, formed on the poles. Alternatively, the poles may be welded to the sleeve 13 and the electromagnet poles may be replaced by permanent magnets. The gap between the adjacent ends of the casing portions 11a, 12a, may be sealed by an 0-ring or by a resilient band overlapping the ends of the casing portions.
Patent GB-402958-A (GB)
Title: Improvements in or relating to guillotine paper-cutting machinery and guards therefor
IPC: B26D7/22
Filed: 1933-02-10
Abstract: 402,958. Machinery guards. CHAMBERLAIN, S. B., c/o St. Luke's Printing Works, Old Street, London. Feb. 10,1933, Nos. 4104 and 5548. [Class 80 (iv).] A guillotine paper-cutting machine having a rising and falling grid or guard to protect the operator, is provided with (a) means to prevent actuation of the knife until the guard is down in operative position, and also to prevent raising of the guard until the driving clutch is out and the driving shaft has ceased to rotate ; (b) means for preventing the knife from overrunning after a. down and up stroke ; and (c) means for holding the severed portion of the pile of paper as it is pushed by the knife. The guard 18 is mounted on links 19, 21 and the bottom bar 20 is connected at one end to a crank lever 25 which is adjustably connected to a locking bar 27 ; the end of the bar 27 can slide in a slot 32 in a stop plate 31 on the striking-on lever 30. When the clutch is out and the clutchlever 17 is held in the catch 29 on the lever 30, the bar 27 registers with the slot 32 and the guard can be swung down, thus withdrawing the end of the bar 27 from the plate 31. The striking-on lever 30 can then be turned by hand to release the lever 17, but the guard cannot be raised as the bar 27 would be stopped by the plate 31. When the cut is completed, the lever 17 is reset under the catch 29, and the slot 32 and bar 27 again register ; the guard can then be raised. To prevent the guard from being raised if the driving shaft 15 is still running, a pawl 43 on the bar 27 is turned into engagement with a rack 46 by a vane 45 which is deflected by spokes 48 on a small wheel 47 driven by a cord 49 from the shaft 15. The pawl and vane are normally held up by a spring, and if the shaft 15 is stationary, the vane can slide between the spokes 48. To prevent the knife from overrunning, a pivoted strut 51 operated by a link 52a is brought under the knife 13 when the guard is raised, and is tilted out of the path of the knife when the guard is lowered. The upper part of the strut is provided with a crutch 52 and rubber buffer 55; and the lower end is curved to bear on a pillar 53. To hold the severed portion of the pile of paper, spring-controlled vertical rods 37 sliding in guides 36 on a bar 33 carry wheels 39 which bear on the pile, and the rods are raised by a rail 41 mounted on the knife carrier and engaging under tappet rollers 40.