baber/WOPTO huggingface dataset:
Patent GB-691322-A (GB)
Title: Improved method for the manufacture of radio lens structures
Inventor: PEGRUM ARTHUR MAGNUS
IPC: H01Q15/06
Filed: 1950-09-22
Abstract: 691,322. Radio refractors. MINISTER OF SUPPLY. Sept. 24, 1951 [Sept,. 22, 1950], No. 23334/50. Class 40 (vii). A method of making a radio lens, or a component section of a radio lens, comprises assembling a plurality of tubular elements in side-by-side relation, treating the assembly to secure an adhesive bond between the tubular elements to render the assembly a self-supporting whole, filling, at least partially, the structure with a matrix material to form one or more regions each having a substantially continuous face containing the ends of the tubular members within the region, machining the surface or surfaces so formed to the required lens profile, and thereafter removing the matrix material. The tubular elements may be of circular, rectangular, triangular, hexagonal or other cross-section and may be of brass. The tubes may be externally tinned with solder and assembled over a former having roughly the correct lens contour, clamped together by means of an encircling band with a resilient fastening, and heated in a furnace so that the solder runs and on cooling secures the tubes in a solid whole. It is stated that lenses formed according to the invention are of considerable strength and light weight. The weight may be further reduced by employing perforated tubes or using light metal alloy instead of brass in which case if the lens is to be assembled by soldering the use of ultrasonic vibration while the structure is in the furnace is necessary. As an alternative to soldering the tubes may be coated with a thermosetting material which, after the structure has been assembled and banded, may be cured to bond the elements together. The matric material, which functions to prevent distortion of the tubes during the machining process may be hard wax, resin, or the low melting-point alloy " Matrix " metal. It may be applied to completely fill the tubes or only to a depth sufficient to support the ends being machined. Both faces of the lens may be filled and machined and during assembly rein. forcing members and/or support brackets may be introduced into the structure.
Patent GB-1095617-A (GB)
Title: Improvements in and relating to underground roadway or tunnel linings
Inventor: SISSON KEITH THOMAS
IPC: E21D11/15
Filed: 1966-05-25
Abstract: 1,095,617. Lining tunnels. HOLLYBANK ENGINEERING CO. Ltd. May 25, 1966, No. 23381/66. Heading E1F. A lining unit for underground roadways or tunnels incorporating spaced beams Gl, G2 is wide enough to span the gap between adjacent beams and consists of a mesh part 1 and sheet metal part 2 hinged together by brackets 4 fixed to part 2 and slidingly engaging the edge wire 5 of part 1. The parts are capable of relative lateral displacement equal to the pitch of the vertical wires of the mesh. Part 2 has hooks 6 to engage the lower edge wire of an adjacent upper unit. To interlock with adjacent side unit and to secure the units to the beam G1, the appropriate edge wire is out and bent to form hooks 8.
Patent GB-376987-A (GB)
Title: Improvements in magnet systems for loud speakers
IPC: H04R11/00
Filed: 1931-08-19
Abstract: 376,987. Loud-speakers. CHORLTON METAL CO., Ltd., Millgate House, Blossom Street, Manchester.-(Kornfeld, S. ; 16, Levetzowstrasse, Moabit, and Kogan, G.; 6B, Bruckenstrasse, both in Berlin.) Aug. 19, 1931, No. 23386. [Class 40 (iv).] A magnetic system for a loud-speaker comprises a magnet in the form of a bar 1 which is bent up at each end to form legs 2, 3, the leg 2 supporting the coil bobbin 4 whilst the leg 3 serves as a carrier for the reed 5 to which is secured a spring 7 controlled by an adjusting screw 8 threaded through the bar 1 between the ends thereof. The bar is also provided with screw holes 9 for fixing purposes. According to a modification, the upper end of the leg 3 is bent over to form a seating for the reed and a supporting plate is provided beneath the bar 1. A bridge may also be secured by the screw passing into the left-hand hole 9, screws being provided on this bridge for fastening supporting arms extending from the bobbin.
Patent GB-603252-A (GB)
Title: Improvements in or relating to the making of glass by electric heating
IPC: C03B5/027
Filed: 1945-09-11
Abstract: 603,252. Electric glass furnaces. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. Sept. 11, 1945, No. 23391. Convention date, Feb. 10, 1944. [Class 39(iii)] In order to start from cold furnaces for glass heated by induction or passage of current through the glass or batch of raw materials, which are bad conductors when cold, a melting bed is formed in the batch and comprises those constituents of the batch which have a higher conductivity when cold, the quantity of said constituents employed being such as to combine with the other constituents to form a glass of predetermined composition. Particles of graphite, metal salts e.g. alkali carbonates, or oxides or metals of the required salts form the melting bed. The composition of the glass is unaltered, and the size of the bed is such that the energy absorbed at starting is approximately equal to that required for normal furnace operation. Silicon dioxide, lime, iron oxide, potassium oxide or sodium bicarbonate may be added to the bed, which may also comprise sticks 6, 9, of graphite, a stick of alkali carbonate and a stick 8 of alkali oxide. Powdered sand or glass may be added to any point of the bed to reduce the conductivity, to which a binder e.g. sodium or potassium palmitate or butyrate may be added. The bed 3 may be placed in a layer 2 of raw materials and is covered at 5 by the remainder of the batch. Three electrodes 4 inserted into the bed are star-connected or delta-connected. The electrodes may be tubular for the introduction of oxidising, neutral or reducing gases and comprise materials similar to those of the beds e.g. layers of carbon, alkali carbonate and alkali oxides held together by alkaline binders or by glass plates 15 with grooves 16 for a glass binding cord.
Patent GB-1093714-A (GB)
Title: Improvements in or relating to blind hole anchor nut fastener devices
Inventor: SUMMERLIN FREDERICK ARTHUR
IPC: F16B37/06
Filed: 1964-06-05
Abstract: 1,093,714. Screw sockets; rivets. AVDEL Ltd. June 3, 1965 [June 5, 1964]. No. 23447/64. Heading F2H. A screw socket has a threaded wedge portion N connected to a sleeve portion B by a shoulder A, a flange F being provided at the free end of  sleeve B. The socket is placed in aligned openings in plates P and a threaded mandrel M is screwed into the nut N. Nut N is then drawn into the sleeve B, which shears at shoulder A, as far as the flange F, thus expanding the sleeve B and clamping the plates to the flange F. A plate (L), Fig. 6, not shown, is then attached by means of a screw (H) inserted in the nut N. The flange F may be omitted. The mandrel may be introduced into the socket through an anvil (AN), Fig. 13, not shown, having a frusto-conical end face with upstanding ribs (R), (R), so that the free end of the sleeve (B) flows between the ribs and is forced against the outer plate (P).
Patent GB-708307-A (GB)
Title: Improvements in or relating to a power transmission system for a window regulator
IPC: E05F15/16
Filed: 1951-10-09
Abstract: 708,307. Window-operating gear. HUPP CORPORATION. Oct. 9, 1951 [Oct. 11, 1950], No. 23460/51. Drawings to Specification. Class 20 (3). [Also in Group XIV] In a vehicle window regulator driven by a reversible electric motor and wherein the transmission includes a worm and worm wheel driving a pinion meshing with a gear sector connected to the operating linkage, the helix angle of the worm is approximately equal to the friction angle between the materials of the worm and wheel and the teeth on the pinion and gear sector are of the long-and-short addenda type. Reversible operation of the mechanism is thus prevented, i.e. the window cannot be actuated except by operation of the power means. The casing in which the gearing is housed is so formed as to hold the worm gear against radial and axial movement or may carry members for this purpose.
Patent GB-185026-A (GB)
Title: Improvements in or relating to the control of electric lamps for cabinets, desks and the like
IPC: F21V33/00
Filed: 1921-09-03
Abstract: 185,026. Barnett, C. J., and Davis, K. O. Sept. 3, 1921. Retractive switches.-For switches for electric lamps which are automatically turned off or on when the lid of a gramophone- or other cabinet is opened or closed, means are provided for switching off the lamp when the lid is open. The movable contact is mounted on a rod 1 which moves up and down with the lid against the action of a spring 17, and a projection 15 on the rod ordinarily moves in a slot 11 in a guide-tube 9; when the lid is open, however, contact may be broken by rotating the rod 1, and when the lid is now lowered, the projection 15 moves down a parallel slot 10 which is connected to the slot 11 by a cross-slot as shown. As shown in Fig. 1, the movable contact takes the form of a bridging member 2, and, as shown in Fig. 2, the projection 15 constitutes it. Fig. 2 shows the invention applied to a gramophone, the lamp 21 being situated in a vertical tube beneath a mirror 23 which is adjustably mounted on an axis 24 so as to throw the light on to the record. The invention is particularly applicable to the electrically-driven gramophone described in Specification 158,967, and, as described in such Specification, the lamp may also constitute a resistance in series with the motor when the latter is running.
Patent GB-411082-A (GB)
Title: A knitted fabric and method of making same
IPC: D04B1/06
Filed: 1932-08-23
Abstract: 411,082. Knitting. NON-RUN FABRIC & MACHINE CO., Inc., 330, 5th Avenue New York, U. S. A.-(Assignees of Graenz, A. ; 563, East Geneva Avenue, Philadelphia, U.S.A.) Aug. 23, 1932, No. 23594. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 10, 1932]. [Class 74 (ii).] Substantially each wale of an antiladdering fabric contains a number of loops 6 formed of the yarn of what would normally be the needle loop of the adjacent wale in the preceding course 4. The courses 5, 11, 12 in which such displaced loops 6 occur are arranged in close proximity. The loops 6 may be displaced always in the same direction as shown, or in successive courses with displaced loops the loops may be displaced in opposite directions. The points 21 for displacing the loops are mounted upon bars 28 which can be reciprocated vertically and axially under pattern control. For the axial movement a pattern wheel 40 having cam surfaces upon its opposite sides is provided and acts upon rollers 42 carried by slidably mounted guides 43. The guides 43 engage with brackets 47 carrying the bars 28 to move the bars axially. The pattern wheel 40 is rotated by ratchet wheel 48 and pawl 49, the pawl 49 being secured to levers actuated by a cam upon a shaft 38. The vertical movement of the bars 28 is obtained from a cam 37 upon the shaft 38, the cam 37 acting upon levers 34, 32. A latch 57 is normally moved by a lever 60 and cam 62 so as to be free of the lever 34, 30 that the bars 28 may be moved vertically. A forked lever 65 actuated by stops on a pattern chain is provided for holding the lever in inoperative position so that the lever 34 also is not actuated. The lever 65 when actuated also prevents movement of the levers connected to the pawl 49.
Patent GB-267022-A (GB)
Title: Improvements in cut-out dolls
IPC: A63H3/08
Filed: 1926-09-24
Abstract: 267,022. Bixby, V. H. Sept. 24, 1926. Paper and like toys.- A toy animal, doll, or other figure is cut from a blank 10, Fig. 1 of paper or like material. The legs are formed by folding along the lines 36 and pasting or glueing together the parts thus superposed. The body and head are formed by folding along the line 23 and glueing the back 12 to the front 11, the strip 20 being then cut away to the contour of the head. Prior to the second folding operation, cuts 41, 44, 49, 50a and 52 are made to allow the arms to be moved. The completed toy is shown in Figs. 2 and 5. The feet are arranged transversely of the toy to give the maximum stability in a standing position.
Patent GB-1022259-A (GB)
Title: Apparatus for performing searches for information stored on tape storages
IPC: G06F17/30
Filed: 1963-06-14
Abstract: 1,022,259. Magnetic tape stores. STANDARD TELEPHONES & CABLES Ltd. June 14, 1963 [June 16, 1962], No. 23721/63. Heading G4C. In a magnetic tape tag searching arrangement, the tag criterion is compared character-bycharacter with stored data under the control of clock pulses derived from the tape, the detection of an inequality causing the next stored character to be compared with the first criterion character. The arrangement described comprises a magnetic tape 4, tag criterion register 2 and character comparator 6. Data may be stored on the tape in the form of words separated by separating symbols y:-... y SPENCER y LONDON y TEACHER y JONES y .... To make a tag search, data such as y JONES ye is placed in the criterion register 2, e being an " end " character. Successive characters in the criterion register 2 are read out into a temporary store 7 under the control of a ring counter 3, the character in the store 7 being compared in the comparator 6 with a character read from the tape 4. If the characters compared are equal, an output on a lead 9 steps the ring counter 3 to cause comparison of the next characters. If the characters compared are unequal, an output on a lead 10 resets the ring counter 3 to zero so that the next tape character is compared with the first criterion character. If the tag characters y JONES y are all successfully compared, a circuit 11 recognizes the next " end " tag character e to cause an output at 12 to indicate a successful search and initiate any desired readout. Modifications.-If desired, a search may extend to only part of a stored word. In another arrangement, each word on the tape may be stored with an additional characterizing the class to which the word belongs, e.g. b N  for " surname," b p  for " profession " &c. A search can then be made on a criterion such as:- y b N  SPENCER y bp TEACHER ye detection of the character bp by a circuit 13 preventing reset of the counter 3. Furthermore, a special character x may be included in the search criterion to produce the effect of a successful comparison regardless of the character read from the tape, recognition of the character x at 13 causing inhibition of the reset of the counter 3 by means of a gate 15 and causing the counter 3 to be stepped on via a gate 16.
Patent GB-938207-A (GB)
Title: Measuring and tallying machine
Inventor: WAGHORNE HAROLD
IPC: B07C5/14
Filed: 1961-06-30
Abstract: 938,207. Electric selective signalling systems. W. C. WARE & SONS Ltd. July 5, 1962 [June 30, 1961], No. 23726/61. Class 40 (1). In a machine for measuring the lengths of strips of wood as they are fed from a planing machine the number of pieces of wood in each of a number of lengths is counted, as is also the total number of lengths and the total footage passing through the machine. Each piece of wood causes wheel 2 to rotate against its length. This wheel has a circumference of 1 ft. and causes cam-operated switch 5 to be operated once for each foot length measured. The resultant pulses are counted at 24 to give the total footage. As the wood passes through the machine it engages a feeler 15 which brings into circuit a second cam-controlled switch 8. The resultant pulses step a three-bank uniselector 19 by way of electromagnet 18. The contacts of one bank are connected to individual counters 22 which each correspond to a particular length of wood. Because of the longitudinal separation of the wheel 2 and the feeler 15 the first counter corresponds to a length of 5 ft. As the trailing edge of the wood leaves wheel 2 the wood is displaced laterally so that switch 17 reverses. In this position no further stepping pulses are fed to the uniselector and clutch 9 is operated so that cam 7 comes to rest at a preset position. Further, rotary relay 29 is energized and rotates cam 30 so that a pulse is passed, via the contact 26 on which arm 28 is resting, to energize the relexant counter 22. As the cam rotates, contacts 32, 33 are closed, causing the counter counting the total number of lengths of wood to step by one and a circuit to be completed via contacts 27 and contact breaker 36 to step the uniselector on to its rest position, whereupon the machine is ready to measure the next length of wood.
Patent GB-257752-A (GB)
Title: Device for indicating the output of looms and the like
IPC: G07C3/00
Filed: 1925-09-23
Abstract: 257,752. Winckler, T., and Winckler, J. J. Sept. 23, 1925. Counters actuated by revolving mechanism ; counters giving time indications.-A device for registering the working of a machine is provided with an exchangeable dial whereby the device may be adjusted for different average outputs. The device comprises a time graduated dial, a pointer co-operating therewith, and mechanism operated by the machine for actuating the pointer so as to indicate normal time while the output is equal to the predetermined average. The device may be directly operated by the machine or a clockwork mechanism may be controlled as to starting and stopping by the machine. As shown applied to a loom, Figs. 1 and 2, the picking shaft thereof is connected to a sprocket wheel 3 which through pinions 4, 5 and worm gearing 6, 7, 8 drives a pair of worm wheels 9, 10 loosely mounted on a central pivot pin 18 and provided with different numbers of teeth. A pointer 11 is rigid with the boss of the worm wheel 9 and to the worm wheel 10, which rides on the boss of the wheel 9, is attached a disc 17 carrying a graduated dial 12, Fig. 3. The wheel 10 is arranged to turn one revolution in an hour and the wheel 9 will be one tooth behind for each complete turn. The dial, Fig. 3, is designed for working at an average output which is 80 per cent of the maximum output, the loom being arranged to produce 120 picks per minute. The wheel 4 can be interchanged with other pinions to permit the device being used with machines of different speeds and the dial 12 is exehangeably mounted so that it can be replaced by other dials in accordance with the percentage of efficiency required.
Patent GB-482253-A (GB)
Title: Improvements in or relating to dewaxing mineral oils
IPC: C10G73/04
Filed: 1937-08-31
Abstract: In the separation of wax from mineral oils, there is used as a wax separating aid a mixture of a residue formed by pyrogenetic decomposition of carbonaceous materials, and aluminium, magnesium or ferric stearate or mixtures of these.  The oil is mixed with this de-waxing aid, and if desired diluents are added, after which the mixture is chilled and the wax separated by filtration, sedimentation or by centrifuging.  Diluents specified are acetone, benzol, deca- or tetra-hydronaphthalene, secondary butyl alcohol, methyl ethyl ketone or mixtures of these.  In examples, residues from cracking oils such as Dubbs pitch, coal tar pitch, stearin pitch or fractions of these are mixed with aluminium or magnesium stearate, and about 1 per cent of this mixture is added to a lubricating oil distillate, obtained by selective solvent extractions together with a mixture of benzene and methyl ethyl ketone.  The mixture is chilled to -20 DEG  C. and the wax filtered off.  The filtration rate is high and the filtered oil has a pour point of -16 DEG  C.  The oil is finally treated with a Terrana earth. Specification 446,716 is referred to.  Aluminium stearate used is made by treating stearic acid with a 5 per cent excess of 1 per cent ammonia solution, and then adding to the resulting solution of ammonium stearate maintained at 40 DEG  C., aluminium chloride mixed with water.  After stirring a jelly-like mass is obtained.  This is shaken with water filtered on a Buchner funnel and washed until the washings are free from chlorides. After drying the product in air, it is dissolved in benzene, filtered, and the benzene vaporated leaving a residue of aluminium stearate.
Patent GB-1288359-A (GB)
Title: Switching circuit
IPC: H01L27/08
Filed: 1971-04-19
Abstract: 1288359 Thyristor firing arrangements ITT INDUSTRIES Inc 19 April 1971 [14 March 1970] 23868/71 Heading H3T [Also in Division H1] A switching circuit comprises an SCR having on one base region a rectifying gate connected directly to a control terminal and via a switching element to the other base region, the switching element containing a barrier which is reverse biased in use and has a smaller breakdown voltage than the SCR. As shown, Fig. 2, an SCR 1 having a rectifying gate 10 is connected to a four-layer diode 6 which has a lower breakdown voltage so that as the gate voltage is increased the diode 6 breaks over and its current increases to a level at which the SCR 1 turns on. The gate current is then diverted through the gate contact 10 so that the current through diode 6 is limited to a safe value. The four layer diode may be replaced by a Zener diode providing this has suitable characteristics. The arrangement may be formed as an IC, as shown in Fig. 6, in which structures similar to normal planar transistors are modified to form a lateral SCR 1 and a transverse four-layer diode 6, the P-type substrate 17 forming both the anode 5 of the diode 6 and the rectifying gate 10 of SCR 1. The cathode region 12 of the SCR1 is shorted to the adjacent base region 7 by the cathode contact K at the side remote from the base contact 20 and the anode contact A. A heavily doped region 30 is provided in the diode 6 at the same time as the cathode region 8 to reduce the breakdown voltage of the centre junction of the diode at this point. Connection between base contact 20 and cathode contact 21 is provided by a conductive track 22 overlying an insulating layer 23. Mention is made of forming the SCR with a star or comb configuration and of replacing certain regions by Schottky contacts.
Patent GB-626442-A (GB)
Title: Improvements in or relating to centrifugal separatus
IPC: B04B13/00
Filed: 1947-08-28
Abstract: 626,442. Centrifugal separators; brakes. JENNINGS, H. W. K. (Western States Machine Co.). Aug. 28, 1947. No. 23877. [Class 23] [Also in Group XXXIV] A strainer separator for centrifuging sugar is directly driven by an electric motor with low- and high-speed windings and a timer such as is described in U.S.A. Specification 2,175,864 is used to transfer the power from the low-speed to the highspeed windings for acceleration and back again for regenerative braking to apply the mechanical brake, to cut off the power from the motor and finally, to cut off the power from the brake-operating means. After reaching speed, the motor high-speed circuit may be opened to permit the machine to coast. At the completion of the operation, a circuit is prepared by which the supply of power to the low-speed windings through resistances may be controlled by a hand switch to rotate the basket at a low speed for ploughing off the deposited sugar. Cooling water may be applied to the brake drum as described in Specification 454,554, [Group XXIV], and wash water may be sprayed on to the deposited sugar under the control of the timer. The centrifuge is braked by a band 27, Fig. 5, tightened by the anti-clockwise rotation of a shaft 30 which may be effected against a returning spring pressure by a pneumatic cylinder or a torque motor 60, Fig. 6, under the control of the timer. An overriding control is provided by a hand-lever 68 carrying a bowl 67 engaging an arm 66 integral with the power brake lever 64. As shown in the dot and dash line position. when the brake is applied by the hand-lever 68, the bowl 67 moves past a dead centre position and the normal urge of the motor 60 to a brake-off position locks the hand-lever 68 and arm 66 together. The hand-lever is formed with a cam surface 71 which opens a master switch in the timer circuit when the handlever is in the brake-on position. Specification 417,782 also is referred to.