baber/WOPTO huggingface dataset:
Patent GB-500949-A (GB)
IPC: E21D9/06
Filed: 1937-07-15
Abstract: 500,949. Adhesives. DU PONT DE NEMOURS & CO., E. I. July 15, 1937, No. 19681. Convention date, July 15, 1936. [Class 121] [Also in Groups IV, III, and VIII] The Specification as open to inspection under Sect. 91 refers to a heat-energizable adhesive obtained from a composition containing dewaxed shellac, alcohol, tricresyl phosphate and carnauba wax. This subject-matter docs not appear in the Specification as accepted.
Patent GB-634165-A (GB)
Title: Improvements in or relating to means for feeding strip to processing apparatus
IPC: B65H20/24
Filed: 1946-07-02
Abstract: 634,165. Feeding webs. TRIGGS, W. W. (Carnegie-Illinois Steel Corporation). July 2, 1946, No. 19776. [Class 100 (i)] [Also in Groups II, XXXV, and XXXVII] In a machine for controlling the feeding of a strip into a processing equipment such as an electro tinning or pickling apparatus in which one or more loops is formed in the strip to provide a supply to the apparatus while joining a new strip to the end of an expiring strip, individual feeding means are provided for feeding the strip into each loop and means, acting upon stoppage of the feeding to the first loop, are provided to reduce the rate of the feed from the loop or loops. As shown, the strip X is formed into two loops 8, 12 before entering a processing equipment 16, loop 8 being fed by driven rollers 6 and loop 12 by driven rollers 10. From loop 12, the strip X is drawn over a guide roller 14 through equipment 16 by driven rollers 18. The rollers 6 are stopped, for purposes of joining on the next length of strip, by the operation of a pushbutton energizing electrical relay circuits which cut the supply from the driving motor of rollers 6 and operate switches which short-circuit sections of rheostats in the field circuits of motors driving the rollers 10 and 18. The adjustment of the rheostat is such that when the rollers 6 are stopped, the speed of rollers 10 is half the speed of the rollers 18. If more than two loops are provided the speed of the rollers feeding the strip X from the various loops is progressively increased so that all of the loops are used up simultaneously. In the normal running of the machine the strip is maintained in the position shown by the full line by photoelectrically controlled relays which cause adjustment to the exciting current of the driving motors. When the loops are approaching the bottom of their pits 2, 4 a beam of light la is broken and causes a slowing of the feed to both loops, a light beam 2a, below light beam 1a, if broken causes a further slowing of the feeds, while a lowermost light beam 3a if broken, will effect a still further reduction of the feeding speed of rollers 6, 10. Light beams 4a located towards the top of the pits control a motor driven rheostat which adjusts the field current feeding all motors so that the speed of all motors is either increased or decreased. When the beam 4a is interrupted by the strip all motors are accelerated and with the strip above the beam the speed of all the motors is reduced. Should the bottom of either of the loops approach the top of the pits 2, 4 mechanical contacts 143, 142 are actuated by the strip which breaks a holding circuit of a main circuit breaker causing all motors to stop.
Patent GB-997846-A (GB)
Title: Improvements in or relating to refractory heat exchangers
IPC: F28D17/02
Filed: 1963-05-17
Abstract: 997,846. Gas heaters; heat exchange elements. K. W. STOOKEY. May 17, 1963 [Aug. 9, 1962], No. 19803/63. Heading F4S. In a heat recuperator in which a furnace gas flows through tubes 36 over which passes the gas to be heated, the tubes extend between two walls formed of refractory blocks 20, each capable of individual movement to relieve thermal stress, the walls constituting the boundaries between the heating gas header chambers 14, 50, and the intermediate chamber 26 in which a cool gas is heated as it flows through narrow passages 60 formed around each tube by sleeve elements 54 which are radially spaced from the tubes 36. The heat exchanging fluids may move in countercurrent flow or in co-current flow. As shown, hot flue gases pass downwardly, through the tubes 36 to the chamber 50 and to a stack 52. Air or fuel gas enters a chamber 62 through a duct 22 and then flows upwardly through the spaces 60 between the tubes 36 and their surrounding sleeves to finally enter the chamber 26 through which the tubes extend. The heated air or gas is discharged through a port 24 to the furnace combustion units. A stack of heat-absorbing and radiating elements extends within each tube (see also Fig. 2, not shown), and is supported by a flange 44 formed on the lower block 20. The sleeves are spaced from the tubes by axially extending ribs 58 (Fig. 2, not shown). The tube ends bear against partspherical seatings formed in the blocks 20 and in the countercurrent flow apparatus shown, the seal between the tube ends and the blocks is maintained by downward pressure due to the weight of the upper blocks 20. In a co-current flow apparatus described (Fig. 4, not shown), the sealing pressure is maintained by springs 90. Sealing between adjacent blocks is by means of a resilient ceramic packing, e.g. of fibrous material which is packed into wedge-shaped gaps 32 formed by suitably shaping the block edges. Individual movement of a block compresses the packing at its narrower edge and maintains the seal.
Patent GB-1210331-A (GB)
Title: Laser oscillator
IPC: H01S5/14
Filed: 1968-04-26
Abstract: 1,210,331. Semiconductor diode lasers. PN junction devices. TURLABOR AG. 26 April, 1968 [11 May, 1967], No. 19891/68. Headings H1C and H1K. In a PN junction laser at least one of the reflectors of the optical cavity is spaced from the diode and the surface of the diode facing the spaced reflector is inclined at Brewster's angle. A gallium arsenide crystal 1 doped with zinc and tellurium has one lateral surface 5 arranged vertically to the PN junction zone 7 to form one reflector of the laser optical cavity. The other reflector of the laser is a concave mirror 13 spaced from the diode 1 and formed by vaporizing a gold layer on the convex side of a planoconvex, cylindrical, spherical or ellipsoidal lens 15. Lateral surface 6 apposite face 5 is inclined at Brewster angle α for the boundary layer crystal-air so that plane polarized laser oscillations pass without reflection loss through lateral surface 6. Both reflectors of the optical cavity may be spaced from the diode 1 and both lateral surfaces 5, 6 inclined at Brewsters angle. Reference has been directed by the Comptroller to Specification 1,010,241.
Patent GB-1079672-A (GB)
Title: Laura henderson
IPC: A47K7/02
Filed: 1965-05-11
Abstract: 1,079,672. Sponges. L. HENDERSON. Jan. 28, 1966 [May 11, 1965], No. 19921/65. Heading A4V. An aid to the washing of one's own back comprises a strip of water-absorbent foam or sponge covered completely with a water-absorbent fabric, and having a handhold at each end, the article being of such length that when located across the back the handholds may be grasped by the two hands of the user. Preferably the handles 5, e.g. of flexible plastics tubing, are attached by folding each end of the strip 2 back on itself at 3 and stitching as shown at 4 to enclose a part of the handle. Handles may also be formed by stitching tapes or loops to the fabric material. The strip is preferably rectangular, the sponge suitably being synthetic plastics foam and the fabric suitably being terry-towelling.
Patent GB-621140-A (GB)
Title: Improvements in or relating to machines for cutting or slicing vegetables
IPC: B26D3/18
Filed: 1946-07-04
Abstract: 621,140. Vegetable cutting and slicing machines. ACME ENGINEERING CO., Ltd., and COLLINGWOOD, C. July 4,1946, No. 19978. [Class 5(i)] [Also in Group VI] A power-driven vegetable-slicing machine cuts a potato into successive slices, turns the slices through 90 degrees and cuts them into chips. Potatoes fed into a reciprocating hopper box 1 are sliced against a fixed knife 2. The falling slices are deflected and turned by a fixed projection 4 and drop through a slot 5 on to a set of inclined spaced bars 6. These bars are pivoted to the frame at 7 and reciprocated by links 8 so that immediately the slice falls into position it is forced against a vertical bank of chipping knives 11. The hopper 1 and the bars 6 are actuated by a crank 14 driven through an eccentric by an electric motor 12. The cut slices may be turned by a separate turning device. The Provisional Specification also describes the use of a fixed hopper and a reciprocating knife.
Patent GB-448366-A (GB)
Title: Insole especially for weak insteps or flat feet
IPC: A43B17/12
Filed: 1935-07-12
Abstract: 448,366. Foot-arch supports. STEINER, E., 7, Str. Simeon Barnutiu, Oradea, Roumania. July 12, 1935, No. 19992. [Class 17 (ii)] An insole comprises a plurality of wood veneers 1, provided on both sides with a yieldable covering 2 such as leather and interconnected with a water-insoluble adhesive such as nitrocellulose, the insole being reduced in thickness longitudinally from the middle towards both ends, and intermediate layers 3 of fibrous material, preferably impregnated with nitrocellulose or the like, being arranged between the wood veneers and the covering 2. The veneers 1 are joined so that the grains of superposed veneers are at right angles and are shaped to the foot. The insole is bent upwardly at both sides being higher on the inner side 9. Depressions 7, 8 for the ball and heel of the foot, and perforations 11 are provided. Specification 362,307, [Group VI], is referred to.
Patent GB-672527-A (GB)
Title: Improvements in or relating to apparatus for finishing a surface on a shoulder or the like of an article
IPC: B24B37/10
Filed: 1950-08-11
Abstract: 672,527. Grinding and polishing. CRANE PACKING CO. Aug. 11, 1950 [Nov. 1, 1949], No. 19992/50. Class 60. Apparatus for finishing a surface on a shoulder 12 or the like of an article 10 comprises a rotatable lap 17 having an annular groove 22 to receive a portion 14 of the article, a ring 23 encircling the article and resting on the lap to condition the surface of the latter, and means for holding the ring against movement with the lap. The annular groove 22 provides two raised portions 20, 21 having radial slots to carry away excess cuttings and grit. The ring 23 wears the raised portions of the lap at a higher rate than the article 10 and hence maintains these portions in their initial condition. Both the ring and the article are rotated by the movement of the lap and prevented from being bodily displaced by a pin 27 secured to a fixed part of the machine frame. This pin passes through a hole in a weight 25 recessed to receive the ring 23 and has a plate 30 to guide the article. The plate 30. may be rotatably mounted on the pin and when shallow articles are to be treated it may be dispensed with. The pin 27 may be displaced axially to enable the weight 25 to be removed and the article to be replaced. A number of articles may be treated simultaneously by providing a number of rings 23. The article shown is a valve plate, but rotary seal seats and similar articles may be lapped.
Patent GB-670455-A (GB)
Title: Improvements in packaging
IPC: B65B33/00
Filed: 1949-07-29
Abstract: A process for packaging articles of the kind in which the article is coated with a webbing of filaments either directly or on a framework of strips or the like which webbing may be built up to form a complete film, is characterised by the feature that the webbing is formed of natural rubber and a polymer of styrene applied together in the form of a solution in a solvent or solvent mixture of high volatility.  The webbing solution may comprise 20 gm. solid polystyrene and 80 gm. of milled rubber in a mixture of 800 ccs. methylene chloride, 150 ccs. toluene, and 50 ccs. petroleum ether (boiling range 60-80 DEG C.).  Alternatively the webbing solution may be formed by dissolving 70 gm. of milled rubber in a mixture of 800 ccs. methylene chloride, 130 ccs. toluene, and 50 ccs. petroleum ether and adding 50 gm. of a solution containing 60 per cent of low molecular weight polystyrene dissolved in xylene.  A further protective coating may be applied to the article after coating with the rubber and polystyrene solution.
Patent GB-1456605-A (GB)
Title: Recording needle protection arrangement for facsimile recorder
IPC: B41J13/22
Filed: 1974-05-07
Abstract: 1456605 Copying by scanning RICOH KK 7 May 1974 [8 May 1973] 20003/74 Heading H4F A recording medium 14, Fig. 2, is secured to a rotatable drum by means of a clamp 12 operated by a handle 18; the medium 14 is released from the drum by operation of arm 24 to rotate clamp 12, the recording medium then being guided away from the drum by movable guide members 22; the clamp 12 is formed with cutouts 32, Fig. 4, to prevent interference between the clamp 12 and guide members 22; one edge 32c of each cutout 32 is angled so that, as the drum is rotated in direction A and a recording needle 16 is moved in a direction F (to provide the frame scan), if the recording needle 16 enters cutout 32 it will not be damaged by contact with edge 32c as could occur, due to the movement in direction F, if the cutout 32 were rectangular.
Patent GB-516743-A (GB)
Title: Improvements in or relating to electromagnetic deflecting systems for cathode ray tubes
IPC: H01J29/76
Filed: 1938-07-06
Abstract: 516,743. Cathode-ray tubes. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. July 6, 1938, No. 20028. Convention date, July 6, 1937. [Class 39 (i)] In an electro-magnetic deflecting system for a cathode-ray tube comprising a square or rectangular yoke on which the deflecting coils are wound, the coils are wound in gramme-ring fashion and the cross-section of the yoke limbs or the coil turns has a dimension substantially parallel with the tube axis and greater than any dimension at right-angles to the first dimension in a section plane of the core normal to the length of the core limb or in the plane of any given coil turn respectively. In the form shown in Fig. 1 the thickness of the yoke 10, 11, 13, 14 is not greater than half that of the core width parallel to the axis AB of the tube and the individual turns of the coils 12, 15 fit the limb. Alternatively, the yoke and coil sections may be such that one side of the turns, e.g., square turns, is close to the yoke on its longer axial dimension and the other side is spaced away from the other side of the yoke. In the modification shown in Fig. 3, the core limbs 10, 11 are approximately square but the sides of the individual coil turns parallel to the axis AB are extended away from the core. The core and coils may alternatively be triangular, as shown in Fig. 8, trapezoidal or elliptical in cross-section. Barrel distortion may be compensated by providing on the limbs carrying one set of coils auxiliary turns carrying current corresponding to that passing through the other set of coils, or, alternatively, by making the ampere-turns at the coil ends greater than at the centre, and pincushion distortion may be reduced by increasing the ampere-turns towards the centre. Specification 403,671 is referred to.
Patent GB-239352-A (GB)
Title: An improved holder or suspension fitting for electric lamps
IPC: H01R33/88
Filed: 1924-08-25
Abstract: 239,352. Lawton & Sons, Ltd., J., and Martin, F. G. Aug. 25, 1924. Holders for clusters of lamps comprise a central plate or carrier 1 having a number of depending arms 4 terminating in horizontal rings 7 to receive ordinary single lampholders 8, and the arms are inclined inwards to bring the lamps close together. The plate 1 is secured to the supply wires by an ordinary cord - grip 11.
Patent GB-969682-A (GB)
Title: Laminated tube structure and method of making such structure
IPC: B29C53/60
Filed: 1962-05-26
Abstract: 969,682. Non-metallic tubes. A. M. HANCIK, and W. A. FOLL. May 26, 1962, No. 20337/62. Heading F2P. [Also in Divisions B5, B8 and H1] A tube comprises a plurality of spirallywound layers 10, 11 of flexible resinous material each layer comprising a laminate of a first plastic material, such as ethylene terephthalate, characterized by being thermally orientated and having a high reorientation temperature, and a second plastic material e.g. polyethylene, having a melting point lower than said reorientation temperature. The layers are arranged with the second plastic material in face-to-face, united relation, the tube being heat-shrinkable whereby an end of the tube is heat-constricted radially inwardly, the second plastic material circumferentially bonding the first plastic material at said end concentrically with respect to the axis of the tube thereby preventing delamination of the layers. As shown the strips 10, 11 are wound on a mandrel 12 and adhesively united by infra-red lamps 17. In a three-layer tube the middle strip has polyethylene laminations on both sides thereof.
Patent GB-785304-A (GB)
Title: Manufacture of oxytetracycline
Filed: 1954-07-12
Abstract: Oxytetracycline is produced by growing a strain of Streptomyces gilvus in an aqueous nutrient medium under aerobic submerged conditions.  The medium contains (a) source of carbohydrates, e.g. sugar, starch or glycerol, (b) a source of inorganic or organic nitrogen, e.g. soybean meal, distillers' solubles, beef extract, skimmed milk peptone, cornsteep liquor or sodium nitrate, and (c) mineral salts, e.g. sodium chloride, magnesium sulphate, potassium dihydrogen phosphate and calcium carbonate.  Oxytetracycline is recovered by adding sodium chloride to the filtered broth and extracting with n-butanol.  The n-butanol extract is washed with water, concentrated to 1/10 th of its original volume, extracted with N/10 hydrochloric acid and the acid extract brought to pH 3.5 by means of an ion exchanger and then lyophilized.  Alternatively, the oxytetracycline may be precipitated by adding ether to the concentrated n-butanol extract.  Specification 684,417 is referred to.
Patent GB-1469157-A (GB)
Title: Process for the production of gels of fibrids of a poly- alpha-olefin
IPC: D21H13/14
Filed: 1974-05-08
Abstract: 1469157 Production of polyalphaolefin fibrid gels SNAM PROGETTI SpA 8 May 1974 [9 May 1973] 20390/74 Heading C3P Alphaolefins are homopolymerized to produce a fibrous gel in the presence of (a) AlR x X 3-x  where R is hydrocarbon, X is halogen and x is 1#Î#2, and (b) a vanadium compound of the formula V(NR<SP>1</SP> 2 ) 4  or a mixture of a vanadium or vanadyl halide and an aluminium compound of formula Al(NR<SP>2</SP> 2 ) 3  where R<SP>1</SP> and R<SP>2</SP> are hydrocarbon radicals. The process is carried out in the presence of a non-solvent for the homopolymer formed. The fibrous gel is then ground to produce a gel of homopolymer fibrids of the polymerization process may be carried out in the presence of hydrogen. Examples refer to the production of polyethylene fibrous gels by the polymerization of ethylene in heptane in the presence of V(NMe 2 ) 4  + AlEtCl 2  orAlEtCl 2 + Al(NMe 2 ) 3  + VCl 4  or VOCl 3 , followed by separation of the gel containing polymerization solvent and grinding thereof to produce the gel of fibrids.
Patent GB-1063404-A (GB)
Title: Code transmitter for asymmetrical direct current signalling via two-wire telecommunication particularly telephone lines
IPC: H04Q3/00
Filed: 1965-05-14
Abstract: 1,063,404. Keysenders. INTERNATIONAL STANDARD ELECTRIC CORPORATION. May 14, 1965 [May 20, 1964], No. 20431/65. Heading H4K. An asymmetrical direct current code keysender breaks the loop to the exchange by means of one set of contacts before connecting up the code elements by means of a separate set of contacts each time a key is operated. Each key of the key set controls contact sets such as all, a12 and r1. Contact sets for n keys are shown. The contact sets rl to rn are arranged in series with the transmit-receive circuit St through which the normal calling loop is made. When a key is operated its associated contact r operates first to break the loop before the other associated contacts a connect the code. As shown in Fig. 3 the contact sets of each key are provided by an encapsulated ball armature K which bridges rods 1 and 2 to provide contact set r or bridges rods 3, 4 and 5 to provide contact sets a. The ball K is of magnetic material and its position is controlled by an electromagnet or by a ring magnet embracing the capsule and connected to a push-button.
Patent GB-1507842-A (GB)
Title: Photopolymerisable screen printing inks and protective coatings produced therefrom
IPC: C09D11/10
Filed: 1975-05-14
Abstract: 1507842 Photopolymerizable screen-printing inks DYNACHEM CORP 14 May 1975 [24 May 1974] 20460/75 Heading C3P [Also in Division G2] Photopolymerizable screen-printing inks comprise (a) a reaction product of (i) an epoxy compound or an omega-hydroxy ether containing at least one aromatic ring with (ii) an ethylenically unsaturated carboxylic acid hav- 3 to 18 C atoms; (b) a liquid copolymerizable compound; and (c) a photoinitiator. Examples of components (a) are the di-(meth)acrylates of 2,2 - [4 - (beta - hydroxyethoxy)phenyl] propane and the reaction product of (meth) acrylic acid with the diglycidyl ether of 2,2-(4- hydroxyphenyl)propane. The inks are useful in the production of printed circuits.
Patent GB-669124-A (GB)
Title: Improvements in or relating to toys
IPC: A63H17/36
Filed: 1949-08-06
Abstract: 669,124. Mechanical travelling toys. SUGRANES, E. R., and VALLBONA, J. S. Aug. 6,1949, No. 20512/49. Class 132 (iii). A travelling to3 simulating a movable object or a humar or animal figure is provided with a heavy, loosely housed pivotless sphere which partly supports the toy. In the Figure, a motor car embodiment has a clockwork propelling mechanism 7 which drives wheels 2 and has a sphere 3 retained in an opening in the floor of the chassis. The weight of the propelling mechanism may nearly counterbalance the weight of the toy forward of the back axle or a separate counterweight may be provided. Flywheel type propelling mechanism also is specified.
Patent GB-767324-A (GB)
Title: Coal cutter pick
Inventor: JENKINS CYRIL
IPC: E21C35/18
Filed: 1954-07-14
Abstract: 767,324. Mineral-mining picks. PADLEY & VENABLES, Ltd. July 14, 1955 [July 14, 1954], No. 20585/ 54. Class 68 (1). The apical point 43 and the cutting edge 41 of the V-shaped front face 32 of the head 31 of a mineralmining pick 30, 31 are formed by a hard metal insert 38 secured in a slot or recess 37 extending inwards of the head from both the front and upper faces 32, 33 thereof. The insert may be of such dimensions that it extends the whole or part only of the length and width of the front of the head. The downwardly and rearwardly sloping upper face 33 of the head may be a plane surface or bevelled to form a V-shaped upper edge 49. The sides 35, 36 of the head may be rearwardly and inwardly inclined and have a layer of hard material applied thereto. Two such heads 31 disposed back-to-back may be formed on the shank 30 of the pick.
Patent GB-144333-A (GB)
Title: Improvements in metallic electrodes for use in electric arc welding operations
IPC: B23K35/365
Filed: 1918-12-11
Abstract: 144,333. Holslag, C. J. Dec. 11, 1918. Drawings to Specification. Heating by electricity.-An electrode for use in arc welding and repairing has a coating of appreciable but not substantial thickness, consisting of a substance, such as silica in the form of sodium silicate, capable of settling over the weld as a slagless, readily removable and oxidation-preventing covering. The coating may be applied by brushing or spraying. It may contain, in addition to the sodium silicate, some precipitated calcium carbonate and a substance more oxidizable than iron, such as boron or a compound thereof, or magnesium. Suitable proportions are sodium silicate 70, calcium carbonate 29, metallic magnesium 1. Finely-divided metals such as copper for modifying the deposited metal may be added. The coating may be applied over only one side of the metal rod. Specifications 21822/14, 122,606, 126,271, 128,186, and 132,354 are referred to.