baber/WOPTO huggingface dataset:
Patent GB-1434056-A (GB)
Title: Telephone calling devices
IPC: H04R1/22
Filed: 1973-04-18
Abstract: 1434056 Audio transducers; sound magnifiers SIEMENS AG 18 April 1973 [15 May 1972] 18677/73 Heading H4J and H4X  A piezoelectric telephone calling device comprises a housing 1 divided internally by means including a diaphragm 5 into two chambers one of which is small relative to the other and provided with openings 2 in the housing, the fundamental oscillation frequency of the diaphragm and the resonant frequency of the small chamber and openings both falling in the audio frequency range. As described the transducer is intended to be located in a telephone handset. Both frequencies referred to above are equal to the calling frequency. A slide may be provided (Fig. 4, not shown) to vary the size of the openings which may be slots and thus the tone, and the slots may have trapezoidal cross-sections (Fig. 5, not shown).
Patent GB-338849-A (GB)
Title: Improvements in or connected with games and sports apparatus
IPC: A63B71/06
Filed: 1929-06-18
Abstract: 338,849. Foster, B. E., and British Automatic Totalisator, Ltd. June 18, 1929. Monogrammic signs.- A game score is displayed on a monogrammic lamp indicator by depressing a key corresponding to the score. Each key controls a corresponding relay causing a rotary switch to rotate until its control wiper comes to an unmarked contact determined bv the key, the remaining wipers and banks giving the corresponding indication. For a tennis score board, keys 15, 10, 12 and 14 corresponding to scores of 15, 30, 40 and advantage, a start key 11 and a homing key 13 are provided. Operation. The start key 11 is depressed and actuates a relay 20 which closes a circuit over its second contact, contact 1 of a bank 7 of a multiple contact switch 7, 8, arm 8, and driving magnet 9. This magnet steps the arms 3 and 8 until an unmarked contact of the bank 7 is reached, in this case the second contact, when the apparatus is in its starting position. The depression of any point key, 12 say, energizes the corresponding magnet 18 which locks up over its second contact, in the group 24. The first contact of this group now closes circuits to energize all the point score contacts of the bank 7 except the fifth on which the rotary switch accordingly comes to rest. Depression of any other point score key would energize its corresponding relay which would lock up over its second contact, break the locking circuit of the relay 18, and over its first contact energize certain contacts of the bank 7 causing the wiper 8 to come to rest on the dead contact corresponding to the key depressed. The contacts 2 - - 6 (not shown), correspond to the scores, zero, 15, 30, 40, and advantage which, when the arm 8 rests on these respective contacts, are shown on the monogrammic lamp indicator 1 controlled by the wipers 3 and banks 2 and of the type described in Specification 326,637. For homing the rotary switch, key 13 is depressed, operating the relay 21, which leaves only the first contact dead and causes the arms 3 and, 8 to step to this position, there being no display in this position. During movement of the wipers, a " slow " magnet 6 is energized to break, at its armature, the circuit of the lamps in the indicator, preventing sparking at the bank contacts. Modifications. One control key only may be provided, successive depressions of which cause successive scores to be indicated, or separate keys may be adapted to directly energize the appropriate contacts of the rotary control switch '7, 8.
Patent GB-1460786-A (GB)
Title: Cold water-soluble gelating composition and process of pre paring same
IPC: A23L29/281
Filed: 1974-04-29
Abstract: 1460786 Cold water-soluble gelatin compositions GENERAL FOODS CORP 29 April 1974 [7 May 1973] 18755/74 Heading A2B A cold water-soluble gelatin composition is made by forming an admixture of sugar and gelatin and subjecting it to heat, pressure and shearing in a closed system without loss of moisture e.g. by extrusion, the admixture containing 2.5 to 6% water to plasticise it. The moisture content of the final product is less than 2.5%. The wt. ratio of sugar to gelatin may be 4:1 to 12:1. An edible acid e.g. adipic, fumaric, citric or tartaric, a buffer salt e.g. a citrate or phosphate, dispersants, wetting agents, emulsifiers, flavourings and colourings may be added, either to the initial admixture or the final composition. The sugar may be sucrose, dextrose, lactose or corn syrup solids. Starches and cereals may also be included.
Patent GB-380036-A (GB)
Title: Air gun with several concentrically mounted spring
IPC: F41B11/642
Filed: 1932-07-04
Abstract: 380,036. Air guns. BOECKER, U., 15, Wilhelmstrasse, Hohenlimburg, Germany. July 4, 1932, No. 18872. Convention date, July 4, 1931. [Class 119.] In an air gun provided with two springs for the air piston, the two springs f, k are arranged concentrically in conjunction with means such as a sleeve h to transmit the pressure of one spring through the other to the piston e. The spring f extends between the piston e and a shoulder g on the sleeve h ; and the spring k extends between a fixed abutment i and a shoulder l at the other end of the sleeve h. The springs are separately compressed and held cocked by separate catches, which are simultaneously released when the trigger is pulled.
Patent GB-1187157-A (GB)
Title: Matrix Memory.
IPC: G11C11/06
Filed: 1968-04-23
Abstract: 1,187,157. Circuits employing bi-stable storage elements; non-contact making relays. ZUSE K.G. 23 April, 1968 [29 April, 1967; 23 June, 1967], No. 19087/68. Heading H3 B. In a matrix memory in which the x, y drive lines cross each other a plurality of times to define a group of storage elements at each set of intersections of the y drive lines with the x drive lines, the y drive lines are divided into two portions each including a switch so that y drive current can be operatively or not operatively linked with a respective group of elements. In the embodiment of Fig. 2 three x drive lines X1, X2, X3 and three column y drive lines Y1, Y2, Y3 cross each other three times to form three matrices 1, 2, 3 as shown, each column line coupling three storage elements e.g. E111, E121, E131 in each matrix which elements form a group. As shown, each y drive line is divided into two parallel portions e.g. Y<SP>1</SP>11 and Y<SP>11</SP>11 one of which Y<SP>1</SP>11 links the storage elements and the other by-passes them so that drive currents can pass through the portion linking the cores or by-pass the elements. Each portion of the y conductor is connected as shown to primary windings U<SP>1</SP>11, S<SP>1</SP>11 of two transformers U, S. In operation assuming all the elements to be in the " 0 " state and element E132 is to be changed to its " 1 " state current pulses are applied to drive lines x 3 , y 2 . In addition a pulse is applied to terminal P11 of transistor T11 so that the transistor becomes conductive and one of the secondary windings U<SP>11</SP>11, U<SP>11</SP>12 is short circuited depending upon the direction of current in the driver line Y2. Since the impedance of the primary winding U<SP>1</SP>12 is determined by the impedance of the load presented to the secondary winding U<SP>11</SP>11, U<SP>11</SP>12 current from the drive current source passes through drive line Y<SP>1</SP>12. Transistor T12 of transformer S is not energized so that the primary winding Y<SP>1</SP>12 presents a high impedance to the drive pulse on drive conductor Y2. The coincident currents on drive lines X3, Y2 thus switch the element E132 to its " 1 " state. Similarly elements E232 or E332 in matrices 2, 3 may be switched or not by controlling the conductivities of transistors T21, T22 and T31, T32 so that current flows through drive line portions Y<SP>1</SP>22, Y<SP>1</SP>32 or Y<SP>11</SP>22, Y<SP>11</SP>32 respectively. Any change of state of the elements is sensed by sense windings L1, L2, L3. In the arrangement of Fig. 4 the y drive lines are connected in pairs as shown each drive line of a pair having its own switches. The storage elements may be ferrite toroids or ferro-electric material.
Patent GB-719841-A (GB)
Title: Improvements in process time controlling devices for pneumatically operated machines
Inventor: ENGLISH ROBERT ERNEST
IPC: F15B11/15
Filed: 1952-07-29
Abstract: 719,841. Pneumatic single-stroke apparatus. BRAITHWAITE & SON ENGINEERS, Ltd., I. July 28, 1953 [July 29, 1952], No. 19097/52. Class 8 (2). A device for controlling the duration of application of air pressure from a supply duct D through a main control valve L and a duct p<SP>1</SP> to the working space b<SP>2</SP> of a machine piston and cylinder b<SP>1</SP>, B comprises a timing cylinder A having a piston a<SP>1</SP> resting at one end a<SP>2</SP> when pressure is cut off from space b' and connected by ducts p<SP>1</SP>, p<SP>2</SP> to said space b<SP>2</SP> and to a piston and cylinder c<SP>3</SP> controlling a two-way valve C, the other end a' of the timing cylinder A being connected by an exhaust port c' of the valve C through a duct p and an adjustable one-way throttle valve E by which the speed of the piston a' and hence the duration of application of air pressure to the space b<SP>2</SP> is controlled. At the rest position of the pistons a<SP>1</SP>, b' a hand lever f controlling the valve L assumes the position f<SP>2</SP> and on pressing the lever f' to the position f' where it is held by a pawl f<SP>5</SP> the working strokes of pistons a', b<SP>1</SP> are initiated. The piston a<SP>1</SP> actuates a tappet valve H at the other end a' of the cylinder A which allows access of pressure air from ducts p<SP>1</SP>, p<SP>5</SP> to one side of a piston j<SP>2</SP> having an inclined surface j<SP>3</SP> serving to raise a plunger j<SP>4</SP> and a two-way piston valve K to connect the supply duct D to a piston and cylinder f<SP>7</SP> serving to raise the pawl f<SP>5</SP> and so release the lever f' resulting in operating the valve L so as to connect space b<SP>2</SP> and cylinder c' to an exhaust port l<SP>1</SP>. Air pressure thus gains access to spaces b<SP>3</SP>, a' to return pistons b<SP>1</SP>, a<SP>1</SP>, and the latter piston on completing its return stroke opens a poppet valve G to allow access of air pressure to the other side of the piston j<SP>2</SP> which then moves away from the plunger j<SP>4</SP> and allows valve K and piston f<SP>7</SP> to assume the positions shown and the lever f<SP>1</SP> when next pressed down by hand to be held by the pawl f<SP>5</SP> in the working position f'. A one-way throttle valve in the duct p<SP>1</SP> controls the duration of the return stroke of the turning piston a<SP>1</SP>.
Patent GB-1119637-A (GB)
Title: Improvements in or relating to timepieces
IPC: G04B45/00
Filed: 1967-04-26
Abstract: 1,119,637. Signs and advertising etc. " AGON " UHRENFABRIK ROBERT TRIEBOLD A.G. 26 April, 1967 [8 Nov., 1966], No. 19120/67. Heading G5C. [Also in Division G3] A timepiece comprises discs 5, 8 of polarized transparent or translucent material, the disc 5 being rotatable relative to the disc 8 so that advertising or other matter on a sheet 10 adjacent the disc 8 may be caused to appear and disappear alternately, and time markings 11 of transparent or translucent polarizing material are provided on the disc 8 the polarization direction(s) of which are neither perpendicular nor parallel to the polarization direction(s) of the disc 8. Preferably the disc 8 comprises two parts 8a, 8b, the part 8a forming a frame about the part 8b and the sheet 10, the parts 8a, 8b being polarized in mutually perpendicular directions so that as the disc 5 rotates the advertising matter alternately appears illuminated in a dark frame and disappears in an illuminated frame, and the time markings 11 appear alternately light and dark. The disc 5 is secured to and rotates with the seconds shaft 4.
Patent GB-935098-A (GB)
Title: Insolubilisation of further-polymerisable methylol-phosphorus polymeric materials
Inventor: COATES HAROLD
IPC: C08G79/02
Filed: 1960-05-30
Abstract: Polymers are derived from methylol phosphorus compounds (such as reaction products of tetrakis(hydroxymethyl) phosphonium chloride (THPC) or tris(hydroxymethyl) phosphine oxide (THPO) with compounds capable of condensing with formaldehyde or of esterifying methanol. Suitable such compounds are (1) nitrogen compounds such as (a) urea, guanidine, melamine or methylol melamine, (b) polyamines, e.g. hexamethylene pentamine, (c) primary amines, e.g. cetylamine, cyclohexylamine, aniline, diethanolamine, (d) cyclic imines, e.g. ethylene imine, (e) polypeptides, e.g. poly(hexamethylene adipamide) or a protein, and (2) phenolic compounds.  The reactants are heated in aqueous solution with ammonium sulphite or a mixture of an ammonium salt and a sulphite, with or without the addition of a buffer, e.g. sodium bicarbonate, and then treated with an aqueous ammonia system (solution of NH4OH or an ammonium salt of a weak acid which salt is readily hydrolysed, e.g. carbonate or carbamate, or mixtures of steam and ammonia gas).  The heating is preferably to 85 DEG -120 DEG C., and the process may conveniently be carried out by impregnating a cellulosic material with an aqueous solution of the polymer and sulphite, heating to 85 DEG -120 DEG C. to dry it and then treating with the ammonia system followed preferably by washing, suitably in a solution of soap or detergent and H2O2 in water, rinsing in hot water, and drying, e.g. at 120 DEG C.  Most of the examples relate to the impregnation of fabrics. Specifications 740,269, 761,985, 764,312, 764,313, 764,314, 775,325, 790,641 and 906,314 also are referred to.ALSO:Cellulosic textiles are filled or rendered flameresistant or rot-resistant and have their dyeing properties or lustre modified by (A) impregnating with a polymer prepared from a methylol phosphorus compound and an amino-compound or phenolic compound (see Group IV(a)) in aqueous solution containing ammonium sulphite, or a mixture of an ammonium salt and a sulphite, (B) drying by heat preferably at 85 DEG -120 DEG C. and (C) treating with an aqueous solution of ammonia or of a hydrolysable salt of ammonia and a weak acid (carbonic or carbamic) or with gaseous ammonia in steam.  The solution in (A) may also contain a buffer, e.g. sodium bicarbonate.  In the examples, cotton drill fabric, cotton wool, viscose, and filter-paper are treated in this way.  The fabrics are usually washed in a solution of soap or detergent and hydrogen peroxide and rinsed in hot water before drying. Specifications 740,269, 761,985, 764,312, 764,313, 764,314, 775,325, 790,641 and 906,314 also are referred to.
Patent GB-964778-A (GB)
Title: Positioning device for the spindles of lathes and other machine tools
Inventor: WHITBREAD ALBERT HOWARD
IPC: B23Q5/00
Filed: 1960-05-31
Abstract: 964,778. Lathes; spindles. BIRMINGHAM SMALL ARMS CO. Ltd. Aug. 31, 1961 [May 31, 1960], No. 19140/60. Heading B3T. A lathe or other machine tool has at least one work-spindle equipped with a positioning device comprising a cam-follower, mounted to rotate with the spindle, and a cam surface adapted, on relative movement between the spindle axis and cam surface, to be engaged by the follower so that the latter and the spindle are rotated to and maintained a desired angular position. The work in the spindle 3, Fig. 1, of a six-spindle automatic lathe may be hexagonal bar 4 which is pre-positioned in relation to the spindle. The drive to the spindles is from toothed gearing 5, 6, to a clutch 8, 9, operated by a sleeve 10. The latter is controlled by a fork 15 and roller 21 engaging a cam 20 fixed to the machine. A brake 11, 12 is operated by the sleeve 10 to stop the spindle and then allow it to rotate freely. When the latter condition is reached, a polygonal (six-sided in the case of hexagonal work) positioning member 22, Fig. 3, integral with the sleeve 10 engages a yielding nose 26 of a cam 26, 25 and turns the sleeve and thus the spindle so that when two corner rollers of member 22 engage cam 25 simultaneously the spindle is in the desired position.
Patent GB-1495633-A (GB)
Title: Substantially non-flammable copolymers containing antimony salts
IPC: C07C51/41
Filed: 1975-05-07
Abstract: 1495633 Non-flammable copolymers BAYER AG 7 May 1975 [8 May 1974] 19146/75 Heading C3P  A copolymer of acrylonitrile and a vinyl halide and/or a vinylidene halide contains from 0À1 to 5% by weight, based on the total solids content, of antimony in the form of at least one antimony compound corresponding to the general formula in which R is a C 3  to C 12 -linear or branched chain alkyl radical. Examples are given in which antimony tris-(2-ethylcaproate) or tris-(caproate) is added to acrylonitrile/vinyl chloride or vinylidene chloride copolymer or acrylonitrile/ vinyl or vinylidene chloride/sodium methallyl sulphonate copolymer in solution in dimethyl formamide or dimethyl acetamide.
Patent GB-284735-A (GB)
Title: Improvements in scavenging in two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1926-08-04
Abstract: 284,735. Hemmingsen, T. V. Aug. 4, 1926. Piston packing. - The piston of a two-stroke-cycle, mterral - combustion engine has a groove h and a piston ring k<1> which extends round the part of the piston not formed with the groove h.
Patent GB-1326973-A (GB)
Title: Apparatus for information storage and retrieval
IPC: G03G15/26
Filed: 1971-06-07
Abstract: 1326973 Information retrieval apparatus AUDAC CORP 7 June 1971 [8 June 1970] 19279/71 Headings G2A and G2H Apparatus for imaging a document 18 on to a frame 32a of a light transmitting storage medium, e.g. a xerographic microfiche 32, includes a light source 24, a mirror 28 and a xerographic assembly 14 containing a lens system (114), Figs. 3, 4 (not shown) on the axis of which the frame  32a is positioned. Before exposure the frame is charged utilizing electrodes (142, 147); then a shutter (172) is retracted and the exposure made; the shutter (172) returns to its initial position and toner is applied to the frame 32a; then hot air is passed across the frame 32a; thus permanent by developing the image on the frame; and finally a lamp (122) is turned on so that the operator can view the printed frame, all these steps taking place with the frame 32a in the same position relative to the lens axis. The microfiche 32 is carried by a holding assembly 12 adjustable so that any frame of the microfile can be positioned on the lens axis. If a full-signed copy of a microfiche frame is to be made, a projection lamp assembly 34 is swung over assembly 12, and light from the frame is focused on a platen 22. A copying assembly 44, provided beneath the platen 22, produces a copy 45 of the frame. A white surface may be positioned below the platen 22 for viewing purposes, or the mirror 28 may be hinged so that an image of the frame is formed on a screen 50 and is visible through a window 51. These operations follow automatically an operation of the appropriate button 17a-d.
Patent GB-443562-A (GB)
Title: Improved fuels for internal-combustion engines
IPC: F02B3/06
Filed: 1934-06-29
Abstract: Diesel or other engine fuel is doped with a peroxide in which one of the peroxide oxygen atoms is attached to an alkyl or alkacyl radical while the other peroxide oxygen atom is attached to a hydrogen atom or to a second alkyl or alkacyl radical. Suitably, 1--2 per cent of diethyl peroxide is added to petroleum fuel oil, coal oil, or creosote.  Specifications 421,928 and 428,972 are referred to. According to the Provisional Specification any organic peroxide may be used; included in those specified are hydrogen peroxide and alkylidene peroxides.
Patent GB-669798-A (GB)
Title: Improvements relating to cast iron
Filed: 1950-08-03
Abstract: Grey cast iron containing 2.25-3.25 per cent C, 7-10 per cent Ni, 3-4 per cent Cu (Ni plus Cu not exceeding 14 per cent), 1-4 per cent Cr, 1.5-3 per cent Si, up to 1 per cent Mn, the balance being iron and unavoidable impurities, is hardened by treating to a temperature of 1000-1050 DEG F.  The "as cast" metal may be softened for machining by heating to 1600-1800 DEG F. and cooling rapidly to below 900 DEG F.  The castings may be held at the hardening temperature for 8 to 15 hours.
Patent GB-669866-A (GB)
Title: Improvements in or relating to air-conditioning, ventilating and heating apparatus
IPC: F28D21/00
Filed: 1949-07-27
Abstract: 669,866. Ventilation. FOWLER, L. J., and WEATHERFOIL HEATING SYSTEMS. Ltd. July 21, 1950 [July 27. 1949], No. 19795/49. Class 137 Ventilating- apparatus i s installed in the double walls between the rooms of a building constructed of prefabricated metal sections, and comprises a metal framework which is covered with metal sheeting to form, with an adjacent wall of the room, an air chamber, air inlets and outlets, being provided in the wall, and a heater unit which is of such dimensions as to fit closely between the double walls. As shown, the framework 21, which is installed in the cupboard space provided between two rooms 11, 12, Fig. 1, is formed from a T-shaped structure the latter being covered with aluminium alloy sheeting to form air chambers 23, 24. Air inlets 25, 28 and air outlets 25, 26 are formed in walls 14, 15. Suspended from the framework in each chamber 23, 24 by tension rods 35 are heating, or cooling, water pipes 30, 31 each supporting by means of tension rods 36 a fan plate 37 or 38. The latter having felt pads at their corners, carry fans 40 and motors 41. Inspection panels 42; 43 are provided in the sides of the framework, a top covering being provided for the latter when it does not reach the ceiling. Specification 665,711 is referred to.
Patent GB-396219-A (GB)
Title: Improvements in the manufacture of knitted fabrics
IPC: D02G1/00
Filed: 1932-07-13
Abstract: Printing.--Knitted fabrics with ornamental effects are obtained by re-knitting yarn obtained by de-knitting a printed knitted fabric, the re-knitted fabrics being preferably of a width different from that of the original fabric.  The following examples are specified: --(1) Woollen yarn dyed with Cloth fast brilliant red 4B is knitted into strips which are printed with Neolan black WA (1st roller) and a hydrosulphite discharge (2nd roller); the strips are then de-knitted and re-knitted to obtain a fabric with black-white effects on a red ground.  (2) A mixed yarn of wool and viscose artificial silk is dyed with Alizarine fast blue BB, which does not colour the artificial silk, knitted into strips, printed with Buckthorn berry, de-knitted and re-knitted to obtain a fabric with yellow and green ornamentation on a blue-white mixed ground.  (3) Knitted strips of raw wool are printed with Neolan black WA extra, de-knitted and re-knitted to obtain a fabric with grey and black ornamentation on a white ground. (4) A knitted fabric of cotton and acetate artificial silk is dyed with Diazo fast blue 6 GW, which does not colour the artificial silk, and the dyeing is diazotized and developed with b -naphthol; discharge effects are then porduced in known manner by printing with one paste containing sodium formaldehyde sulphoxylate and another containing in addition Buckthorn-berry extract and the fabric is de-knitted and re-knitted to obtain a fabric with white and orange effects on a blue-white ground.