baber/WOPTO huggingface dataset:
Patent GB-574454-A (GB)
Title: Copolymers of trichloroethylene
IPC: C08F214/04
Filed: 1942-05-22
Abstract: Trichlorethylene and an organic compound having an ethylenic double bond conjugated with a multiple bond between carbon and carbon, nitrogen or oxygen are co - poly - merized, the proportion of trichloroethylene being such that the copolymer does not contain more than 25 per cent of trichloroethylene.  Organic compounds specified are methyl-, ethyl-, butyl-, octyl-, octadecyl-, cyclohexyl-, phenyl-, and b -chloroethylacrylates, methacrylates and a -chloroacrylates, styrene, vinylnaphthalene, methyl vinyl ketone, methyl isopropenyl ketone, acrylonitrile, methacrylonitrile, butadiene, chloroprene and isoprene. Polymerization may be carried out in aqueous emulsion.  Suitable emulsifying agents are sodium, potassium and ammonium palmitates, mono-, di- or triethanolamine laurates and palmitates, lauryl and octadecyltrimethyl-ammonium bromide, sodium dodecylsulphate, cetysulphate, octadecenylsulphate and acetoxyoctadecyl-sulphate, sodium, potassium, ammonium or amine salts of alkyl-naphthalene sulphonic acids, cetyl sulphonic acid and a -acetoxyoctadecane sulphonic acids, the sodium salt of sulphonated paraffin oil, C-cetylbetaine and hydroxy-C-cetylbetaine.  Suitable catalysts are hydrogen peroxide, alkali and ammonium perborates, persulphates, peracetates, perchlorates, peracetic acid and persulphuric acid, acetyl-benzoyl-, benzoyl-, dibutyryl-, lauroyl-succinyl-, urea and decahydronaphthalene peroxides.  Residual monomer is removed by steam distillation and the polymer precipitated by addition of a solution of aluminium sulphate, calcium chloride, sodium chloride, sulphuric acid, phosphoric acid or hydrochloric acid. Polymerization may also be effected by "bulk" methods, in solution in aliphatic or aromatic hydrocarbons, aliphatic alcohols, ketones, esters, dioxan, ethers, saturated chlorinated hydrocarbons, or by granular methods using protective colloids such as soluble starch, methyl starch, partially hydrolysed polyvinyl acetate, alkali salts of polymers or interpolymers of acrylic or methacrylic acids, polymethacrylamide, sodium starch glycollate and sodium cellulose glycollate.  Thermal decomposition of the co-polymers may be minimised by the addition of stabilizers such as epichlorohydrin, 1-phenoxy-2,3-ethoxy propane or thio-b -naphthol.  The co-polymers may be combined with or prepared in the presence of plasticizers, fillers, pigments, dyes, natural or synthetic resins.  They may be used for coating or impregnating wood, textiles, leather, metal, glass, paper, stone, brick, concrete and plaster.  Dispersions used for this purpose may be thickened by the addition of polyvinyl alcohol or sodium polyacrylate or methacrylate.
Patent GB-861813-A (GB)
Title: Manganese base alloys
IPC: C22C28/00
Filed: 1958-03-05
Abstract: A high strength maganese-base alloy has the following composition by weight: Cu 5-30%, Zn 5-20%, N2 0.1-5%, Mn the remainder.  C 0.1-0.5% may be present in the alloy.  The alloy is prepared by melting the constituents in a plumbago crucible lined with alumina, the nitrogen being introduced in the form of nitrided electrolytic Mn containing 6% N2.  It is preferred to use cryolite as the flux and to direct the stream of argon into the top of the crucible.  Alloys having high Mn contents are annealed above 750 DEG C. and alloys having low Mn contents are annealed above 650 DEG C.  An alloy consisting of Mn 71%, Cu 20%, Zn 9% is also referred to.
Patent GB-195510-A (GB)
Title: Improvements in direction indicators for motor vehicles and the like
IPC: B60Q1/34
Filed: 1922-03-10
Abstract: 195,510. Fisher, P. J. March 10, 1922. Road - traffic signals on vehicles; semaphore and stencil signals.-A pivoted member for indicating turning or stopping which may be rotated into different operative positions in which it is automatically illuminated, is carried by a sleeve 5 mounted on a fixed boss 6, 9 and is turned by means of a Bowden wire 11 passing round a groove in the sleeve, the return to normal being effected by a clock spring 14. A stencilled arrow 4 on the indicator is illuminated in operative position by lamps 21 by means of a spring-pressed brush 29 which engages one of a set of contacts 28 on the boss 6, the circuit including the casing 1. The device may be attached to a windscreen by means of a clamp 32 on the end of telescopic rods 34, 35.
Patent GB-1386343-A (GB)
Title: Production of ribbed tubes
IPC: F28F1/30
Filed: 1972-02-16
Abstract: 1386343 Making gilled tubes G SCHOLL 16 Feb 1972 [17 Feb 1971] 7203/72 Heading B3A [Also in Division F2] A ribbed tube is made by forming either a pair of cut-outs 9, Fig. 9, or an aperture 10, Fig. 10 in a sheet, folding the sheet to a U-shaped cross-section along parallel folds which lie symmetrically either between the cut-outs or across the aperture, and welding the sides of either the cut-outs or the aperture to the tube to form the ribbed tube of Figs. 2 or 3 respectively. The sheet may be larger as shown in Figs. 11 and 12, and have additional folds so that the edges of the sheet can be folded towards or away from each other. A series of ribs, (Fig. 8, not shown) may be made by forming a row of apertures in a strip and rectangularly corrugating the strip. In another embodiment (Fig. 14, not shown) two or more pairs of apertures are formed in the sheet so that two or more tubes can be joined by the rib.
Patent GB-495165-A (GB)
Title: Improvements relating to the envelopes of and leads in high frequency electron discharge tubes
IPC: H01J5/44
Filed: 1938-03-08
Abstract: 495,165. Thermionic valves. LORENZ AKT.-GES., C. March 8, 1938, No. 7249. Convention date, March 8, 1937, [Class 39 (i)] In a high-frequency discharge tube the electrodes are supported on rods 4 passing through a ceramic annulus 3 separate from the ceramic upper and lower parts 1, 2 of the envelope. The rods are sealed in the annulus by metal or glass of higher melting point than that used at 14 to form the joints in the envelope walls. The upper part of the envelope may be of metal to form the anode 11 which is sealed to the part 1 by a glass melt 12.
Patent GB-675618-A (GB)
Title: Improvements in or relating to protective circuits for a polyphase load device
IPC: H02H7/085
Filed: 1950-03-23
Abstract: 675,618. Protective cut-out arrangements. GARRETT CORPORATION. March 23, 1950. [April 2, 1949] No. 7289/50. Class 38 (v). A protective system for a star-connected polyphase apparatus, such as a motor, comprises switch means 13 ... 15 in the main power leads to the apparatus, thermostatic means 42 ... 45 adapted to actuate the switch means and a plurality of heaters 40, 41 adjacent the thermostatic means and connected between one phase winding 22 and the junction of the other phase windings 20, 21 of the apparatus, the neutral or earth conductor being connected to a terminal common to adjacent heaters. In the figure, the thermostatic means comprise snap-acting bimetallic discs 42, 43 co-operating with contacts 44, 45 in a circuit containing a battery 17, switch 18 and the operating coil 16 of a contactor 12 having contacts 13 ... 15. In the event of excesss current in either or both of the heaters 40, 41 due to an overload or as the result of the open-circuiting of one or two phase windings, one or both of the discs 42, 43 opens the circuit for the contactor-operating coil 16. The discs may be disposed so as to receive heat from the apparatus as well as from the heaters. Specification 639,195 is referred to.
Patent GB-164827-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H9/34
Filed: 1920-03-11
Abstract: 164,827. British Thomson - Houston Co., Ltd., (General Electric Co.). March 11, 1920. Arc-rupturing.-The arc formed when the contacts are separated is split in the plane of the arc by impinging on the edge of a flat insulating barrier 32, Fig. 8. The dotted circles represent cross-sections of the arc leaving a contact 31, before and after impinging on the barrier 32, which is formed with a sharp bevelled edge. Preferably, side plates 33, 34 are added so as to confine the arcs to constricted shoots with narrow exits at the remote ends. A number of barriers and partitions may be combined as indicated at 26, 27, 28, Fig. 1, for rupturing the arcs of a row of controller contacts. To form magnetic blow-outs according to the invention, iron plates are embedded in the side insulating plates, and the blow-out coil may be placed as shown at 41, Fig. 10.
Patent GB-624796-A (GB)
Title: Improvements in and relating to small commutators
IPC: H01R43/06
Filed: 1947-03-17
Abstract: 624,796. Moulding commutator insulation. LANDIS & GYR SOC. ANON. March 17, 1947, No. 7380. Convention date, March 18, 1946. [Class 87 (ii)] [Also in Group XXXV] The segments of a commutator are held during moulding in a cage composed of a ring of flat bars for holding the segments in position. In the form shown, the bars 4 are placed in radial slots in a ring 1 which is also radially slotted on its under side to accommodate a cranked portion 5, further rings 6, 7 clamping them in place. The commutator segments are placed in the spaces 8 between the bars, and the whole placed in a mould 9. A core 10 carries the commutator hub 11 and a final ring 12 covers the whole assembly and guides the moulding material which is forced down by a ram 13 or sprayed in by a nozzle which takes its place. In the form shown, the bars are shorter than the segments so that spaces 15 are left filled with the moulded material, the connecting leads being soldered at this end. The rods 4, which may alternatively be as long as the segments, may be soldered to the ring 1 or held by other means.
Patent GB-1292712-A (GB)
Title: Improvements relating to coin-operated gaming or amusement machines
Inventor: CARTER ALBERT EDWARD
IPC: G07F17/34
Filed: 1970-01-20
Abstract: 1292712 Coin-freed amusement machines CARFIELD (ENGS) Ltd 20 April 1971 [20 Jan 1970 14 April 1970 18 March 1971] 2671/70 17569/70 and 7438/71 Heading G4V In a "fruit machine" the facility is provided of changing the symbol at at least one of the positions in the winning combination-line after a play has taken place, the replacement symbol or symbols being visible to the player immediately prior to the change being made. The machine may have symbols on drums, reels or discs or utilize an illuminated display device, but in either case, two or more symbols are visible at at least one position when the symbols are stationary. Preferably, the change at any position is limited to the next symbol in the direction of change. The facility may not be available after every play, but only as determined by a random device. An embodiment is shown in Fig. 2 where the "selector unit" comprises two co-rotatable cams (not shown) which respectively operate switches A, B. The latter is opened by one cam after the drums have ceased rotating to stop rotation of the cams, the stopped position of the other cam determining whether switch A remains opened or closed. If closed, the change facility is available and the player presses an "adjustment button" to activate a rotary cam type "adjustment timer unit". A pulse is sent to the appropriate "drum indexing solenoid" and a "winning combination detector" and "pay-out mechanism" are energized. The "timer unit" may incorporate capacitors rather than cams. Features to ensure only one availability per game and the functioning of only one "adjustment button", may be provided. In a simplified embodiment, Fig. 3, certain symbols are marked. to represent "adjustment symbols" which when one position from the "combination line" after play, as shown, effect via a "selector disc" actuation of a "'striker switch". This switch renders the associated "adjustment button" operative. Button operation may be replaced by automatically operating adjustment mechanism.
Patent GB-886850-A (GB)
Title: Improvements in or relating to cameras having automatic exposure control means
IPC: G03B7/085
Filed: 1960-03-03
Abstract: 886,850. Photo-electric exposure control. KODAK Ltd. March 3, 1960 [March 6, 1959], No. 7511/60. Class 40(3). [Also in Group XX] A photographic camera with automatic exposure control means has a part operable from outside the camera to hold the exposure control means or a part connected thereto in a desired position sliding the knob 52, Fig. 4, in the direction of the arrow forces a projection 48 on a leaf spring 44 out of the recess 50. Spring 44 thereby releases a weaker leaf spring 38 which presses against a U-shaped member 36 to clamp the moving coil 24 of a photo-electrically controlled galvanometer connected thereto. Member 36 may be replaced by a leaf spring connected to a cam 76. Alternatively, Fig. 6, cam 76 permits a leaf spring 70 to engage a braking surface 82 connected to the moving. coil, but when rotated clockwise it frees the coil. Detents 88, 90 hold cam 76 in its operative positions and a mark 84 indicates the position occupied. In a third embodiment, Fig. 9, a leaf spring 118 engages the diaphragm vane 16 when slide 100 is in its lower position, but when in its upper position, a lug 116 connected thereto holds spring 118 away from vane 16. In a fourth embodiment, Fig. 12, a spring 126 engages the face of vane 16 and when a knob 120 is rotated spring 126 is disengaged by the disc 128.
Patent GB-333569-A (GB)
Title: Improvements in closing devices for collapsible tubes and the like containers for liquid or plastic substances
IPC: B65D47/20
Filed: 1929-03-08
Abstract: 333,569. Shannon, D. M. March 8, 1929. Stoppers with valves.-In collapsable containers in which the cap makes a, valve-like connection with the neck of the container, the end of the neck a' is formed as a frustrum of a hollow cone the top a<3> of which is imperforate to make a closed joint with the inturned flange b<3> of the cap B and discharge apertures a<2> are formed in the conical portion, the material passing through them into the cap when the tube is squeezed and the cap thereby raised against the action of spring devices, fitted between the cap and the container, which normally keep the cap closed. The spring devices may comprise a ring C, Fig. 2, secured at opposite points b<5> to the cap and at intermediate opposite points a <5> to the neck, several springs D, Fig. 4, secured at one end b<8> to the cap and at the other end a<8> to the neck, or a coil spring within the cap engaging a flange on the neck at the base of the cone and an inturned flange at the lower edge of the cap. Accidental loosening of the cap during transport is prevented by a pin b<7> on the cap which engages in an L- shaped slot a' in the neck or by a soft metal strip b<11> soldered or otherwise attached to the cap and neck.
Patent GB-805680-A (GB)
Title: Improvements in metal working machines
IPC: B23D21/00
Filed: 1957-03-08
Abstract: 805,680. Shearing; straightening. HUTTENWERK OBERHAUSEN A.G. March 8, 1957 [March 12, 1956], No. 7715/57. Class 83 (4). In a machine in which a plurality of profiled bars are fed side by side along a feed-table to a work-station a sloping frame provided on its lower face with guide ridges appropriate to the shape and size of the bars is positioned across the table the spaces bounded by the guide ridges and the table each providing a small clearance when a bar is fed therethrough. A feed-table is provided with vertical partitions 3 between which bars e.g. angle bars are fed by rollers 1 up to a stop 6. A sloping frame 5 has guide ridges as shown in Fig. 4 which serve to locate and straighten the bars. When the bars have been aligned, the stop 6 is lowered and the bars are fed under a guiding frame 7 similar to the frame 5 to be cut by profiled blades 11. The frame 7 may be provided with guide extensions 8. The frames may be vertically adjustable and the guide ridges may be adjustably secured to their frame.
Patent GB-729851-A (GB)
Title: Improved method of joining metallic tubes
IPC: B21D39/04
Filed: 1953-03-23
Abstract: 729,851. Tube Joints. GENERAL MOTORS CORPORATION. March 23, 1953 [April 15, 1952], No. 7908/53. Class 99 (1). [Also in Group XXII] The flanged ends 32, 34 of metal tubes 20, 22, e.g. of aluminium and brass respectively, are pressed over a reinforcing tubular insert 24, and the abutting flanges are cold welded, i.e. the flanges are pressed together at a temperature substantially below that of normal welding. The insert has an external annular groove 26 to accommodate bulging at the joint, and may have an additional pair of grooves 28, 30 into which the walls of the tubes are rolled after removal from the press ; if rolled tightly into the grooves 28, 30, the insert 24 need not be a press fit. Tubular dies 36, 40 are located within a guide 52 between upper and lower members 44, 46 of the press. The die 36 has an annular projection 38 close to its inner periphery, for engaging the flange 32, and the die 40 has an annular projection 42 narrower than the projection 38 and further from. the inner periphery of the die, for engaging the thinner flange 34, the inner edge radius of each projection being greater than the outer edge radius.
Patent GB-865520-A (GB)
Title: Improvements in or relating to the oiling of textiles
IPC: D06B1/02
Filed: 1956-03-14
Abstract: <PICT:0865520/IV(c)/1> <PICT:0865520/IV(c)/2> In apparatus for oiling textile material the feed lattice of a textile opening machine from which textile material passes to an oiling unit is provided with means which gauges the amount of material passing therethrough and also operates a control device or mechanism which increases or decreases the amount of oil issuing from the spray nozzles of the oiling unit in proportion to the amount of textile material passing the spray nozzles.  The means for gauging the amount of textile passing along the feed lattice may comprise a transversely mounted pivotal plate or series of fingers or weighted roller beneath which the material passes and the plate, series of fingers or roller rises and falls in accordance with the depth of textile material passing beneath. The pivotally mounted plate series of fingers or weighted roller may be connected with a suitable mechanism whereby the flow of oil from the spray nozzle is controlled, this mechanism being either electrical, mechanical, hydraulic or a combination thereof.  When the control means is electrical a rheostat may be incorporated to control the opening and closing of a valve in an oiling circuit.  As shown in Figs. 1 and 2 a weighted roller 1 may be fixed to an arm 2 pivoted at 3 to the opening machine.  Roller 1 may be driven by a belt above a conveyer 6, the arrangement being such that when no textile material passes along the conveyer roller 1 takes up position A, while the height of any textile material passing along conveyer 6 determines the height of roller 1 e.g. at position B, and through connections 7, 8, 9, lever 10 pivoted at 11 causes the corresponding quantity of oil to be delivered on to the textile material.  In order that oil does not immediately flow when roller 1 is lifted an electrical delay mechanism may be incorporated in the system such that movement of arm 2 closes a switch 18 which sets in motion delay mechanism 19 which in turn operates valves 20, 21.  In modifications (not shown) weighing of the quantities of textile materials fed to the opening machine are described.  In other modifications (not shown) the controlling mechanism may actuate a pressure supply means e.g. a pump or compressed air by means of which oil under pressure is delivered to the nozzles.
Patent GB-929718-A (GB)
Title: Improvements in electric torches
IPC: F21V33/00
Filed: 1962-03-01
Abstract: 929,718. Electric battery lamps combined with cigarette lighters. H. CHEN. March 1, 1962, No. 7988/62. Addition to 873,527. Classes 39 (2) and 75 (3). The electric torch of the parent Specification is modified in that the switch element, the con ductor strip and the switch pocket are so con structed that the switch element can be moved to a neutral position which lies beyond, i.e. not between, the two contact making positions. In the neutral position shown in the Figure, the contact 38 on the switch slider 30 is movable successively to make contact with the portion 42a of the strip 42 for completing the bulb circuit and with the strip 36 to bring the heater element 32 into operation. The slider 30 carries a shield 46 with an aperture 50 which registers with an aperture in the casing when the element 32 is in operation.
Patent GB-697952-A (GB)
Title: Improvements connected with electric cooking ovens
IPC: H05B1/02
Filed: 1949-03-24
Abstract: 697,952. Control systems for heating resistors. REVO ELECTRIC CO., Ltd., and FELTON, A. E. May 22, 1950 [March 24, 1949], No. 7993/49. Drawings to Specification. Class 38 (iv). An electric oven incorporates an internal grill boiler element in addition to the main heating element and a switching system is provided whereby : (1) the two elements may be connected in parallel and controlled by a common thermostat, and (2) the main heating element may be switched off and the grill boiler element energized independently of the thermostat. The system may be such that in the parallel connection only a portion of the grill boiler element is energized, whilst when the main element is isolated the switch may provide for a plurality of different connections between portions of the grill boiler element to give different heating effects. The switch may be of the rotary kind described in Specification 634,034, [Group XXXVII], comprising three cam-actuated resilient contact blades cooperating with four fixed contacts.
Patent GB-126780-A (GB)
Title: Improvements in or connected with the Construction of Boxes or Cases or like objects and of the Floors, Roofs, Walls, Partitions or other Parts of Railway or other Vehicles or like objects.
Inventor: COLLIER GEORGE HERMAN
IPC: E04C2/32
Filed: 1918-05-13
Abstract: 126,780. Collier, G. H., and Morris, W. Muy 13, 1918. Sides, floors, roofs, and partitions. - Construction sheets or panels, preferably metallic, for use in making the floors, walls, roofs, partitions, &c. of railway vehicles, are formed with indentations 2, 3 on both sides, so disposed in a pattern that any line such as 10 or 11, Fig. 2, or 23, Fig. 4. drawn through a plain or unindented portion of the plate, must be of a curved or zigzag character. A plate of this description may be employed, as shown in Fig. 1, in conjunction with a plain sheet 4, 5 on one or both sides. The indented sheet may be formed with a plain margin for attachment purposes.
Patent GB-646704-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J23/16
Filed: 1947-03-25
Abstract: 646,704. Magnetrons. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 25, 1947, No. 8102. Convention date, Oct. 15, 1942. [Class 39 (i)] In a magnetron of the type having the interior of the cylindrical casing 22 divided into pockets 23, 24 ... 30 by flat-walled partitions 13, 14 ... 20, the said partitions fit into grooves 56, Fig. 3, on the inner surface of the casing, and are soldered therein. The casing may be of selenium copper alloy, and the coaxial terminal 34 has its inner end looped back and attached to the casing as at 35. The terminal 34 is centred by a glass bead 41 in a metal sleeve 42 soldered to a casing 36 which is threaded as at 38 for a co-axial line attachment. Specification 588,185 is referred to.