baber/WOPTO huggingface dataset:
Patent GB-374166-A (GB)
Title: Improvements in or connected with the treatment of materials, particularly fish offal, waste fish or the like
IPC: C05F1/00
Filed: 1931-03-11
Abstract: <PICT:0374166/III/1> <PICT:0374166/III/2> In apparatus for the treatment of offal, comprising an outer casing, a digestion chamber within the outer casing to which offal is continuously supplied and in which the offal is subjected to the action of steam or solvent, and a secondary screen on to which the resultant mixture of solid and liquid products is continuously discharged from the digestion chamber and through which liquid products pass to continuous discharge and by which solid products are retained, the said solid products being continuously removed therefrom, provision is made for clearing the interstices of the secondary screen while the treatment is in progress.  Offal is fed at 11 into a chamber A containing a rotary digester in the form of a screening drum B carrying externally, helical brushes E and blades 4 serving to clean a fine meshed sieve D and to convey solid material unable to pass through the sieve D to an outlet 13. The sieve D may also be cleaned by steam or water jets at 14. Steam or solvent enters at 19, uncondensed steam being drawn off at 20.  Liquid products leave at 17, silt being fed by worm conveyers 15, 16 to said outlet.  A thermometer 21 is provided. The secondary screen and the brush means are relatively adjustable.  In a modification the secondary screen is in the form of a drum coaxial with the drum B and rotating at a different speed.  Fish waste and fish offal are treated in the apparatus to obtain glue, fats, oils, and the like.
Patent GB-948976-A (GB)
Title: Improvements in or relating to earphones
IPC: H04R19/02
Filed: 1961-03-01
Abstract: 948,976. Electrostatic transducers. APEX CORPORATION. March 1, 1961 [March 11, 1960], No. 7516/61. Heading H4J. An electrostatic earphone has perforated electrodes, a light-weight diaphragm, and a perforated back plate, so that sounds produced externally may pass through the earphone. As shown in Figs. 3 and 5, the diaphragm is made of a light-weight material with a resistivity of about 10<SP>10</SP> ohms/square, is about 0.0005 inches in thickness and is clamped against the conductively coated surface of an insulating mounting ring 36 by a rubber ring 46 recessed in a second insulating mounting ring 27. Each mounting ring carries a perforated electrode 21, 24, which may be of coated insulator or of metal. Mounting ring 27 carries an insulating back plate 18 which is perforated and mounts a pivot bar 16 in bearings 17, the bar 16 being fixed to an adjustable stirrup 13 of a head harness (see Fig. 1, not shown). A sound absorbing pad 20 lies between the back plate 18 and the electrode 21 to damp out resonances. A foam rubber ear cushion 52 surrounds the mounting rings and covers part of the electrode 24. Leads 56, 57, 58, clamped to the back plate 18 by a bracket 63 connect with the electrodes 21 and 24 or their conductive coatings and to the diaphragm. The receiver may be driven by the secondary of a transformer, the ends of which connect with the electrodes and a centre tap from which connects with the diaphragm via a polarizing potential source and a damping resistor. The diaphragm may be coated with an anti-static substance such as stannous chloride to ensure charge migration. A valve circuit to drive the receiver is shown in Fig. 7, input being applied by way of triode and pentode shapes. Only one electrode is actively driven, the other being earthed. The diaphragm is polarized from the 700-volt supply 127. To compensate for a diminishing response at high frequencies, feed-back is taken from the active electrode of the receiver to the cathode of the triode.
Patent GB-777284-A (GB)
Title: Improvements in or relating to the manufacture of interpenetrating machine parts
IPC: B29C65/48
Filed: 1955-03-15
Abstract: 777,284. Casting composite articles. SOC. FINANCIERE D'EXPANSION COMMERCIALE ET INDUSTRIELLE SOC. ANON. " SFINDEX ". March 15, 1955 [March 18, 1954], No. 7575/55. Classes 83 (1) and 83 (2). [Also in Group XXXIV] A method of making a rectilinear-motion bearing comprises locating one member 1, having finished sliding-surfaces, within an aperture 4 in another member 2 and casting material 7, either metal or plastic, in the intervening space 6. A film 5 covers the member 1 and this may be subsequently removed in order to allow predetermined play between the member 1 and filling-material 7. The aperture 4 has a V-shaped profile 21, 23. In a modification shown in Figs. 4 and 5, an elastic sealing-member 8 is compressed against a film 5 by a band 9 during manufacture, as shown on the left-hand sides of the Figs. When the film 5 is subsequently removed, the member 8 seals the space 10 between the filling 7 and member 1 as shown on the right-hand sides of the Figs. In the embodiment shown in Fig. 7 a tubularmember 11 is filled with casting-material 12 through valves 18. In another modification, an accurately-fitting member 13, Fig. 9, is located on the member 1 and fixed in the aperture 4 in the member 2 by material 7 cast between members 2, 13. Similarly accuratelyfitting rings 14, Fig. 11, are located in the aperture by material 7. Specification 673,062, [Group XXVI], is referred to.
Patent GB-217329-A (GB)
Title: Improvements relating to thermionic valves for wireless telegraphy and telephony
IPC: H01J1/15
Filed: 1923-03-16
Abstract: 217,329. Kimpton, W. March 16, 1923. Vacuum tubes.-A valve having several filaments is provided with collars fitting on the usual filament pins and having terminals engaging with the terminals of spare filaments. The main filament is connected with pins 1<a>, 1<b>, and the spare filaments with sockets 2<a>, 2<b> and 3<a>, 3<b> respectively. Flat collars 5<a> fitting on the pins are provided with short terminals 5 which may be inserted in the sockets for connecting the spare filaments with the pins. The filaments are mounted inside a grid at a uniform distance from each other and from the grid.
Patent GB-465682-A (GB)
Title: Protecting means for current converters
IPC: H02H7/127
Filed: 1936-03-13
Abstract: 465,682. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 13, 1936, No. 7652. Convention date, March 13, 1935. [Class 38 (ii)] In a converter comprising a gaseous discharge device 1 in association with a transformer 2, protection against faults such as back ignition in the discharge device or short circuits in the transformer is afforded by means responsive to inequality between current on the D.C. side and current on that side of the transformer remote from the discharge device the means being operative to actuate a protective relay or to apply blocking potential to grids in the discharge device. In one arrangement, Fig. 1, the responsive means comprises an electro-dynamic relay 11 differentially energized by (1) the D.C. load current in a coil 9 associated with a permanent magnet 10, and (2) A.C. from current transformers 4 supplied to moving and fixed coils 6, 7 the latter being on saturated cores so that a force proportional to current on the A.C. side is applied to the relay armature in opposition to that provided by the coil 9. In alternative arrangements, current from the transformers 4 is supplied through auxiliary rectifiers to (1) a relay in opposition to current derived from a shunt in the D.C. circuit, and (2) an exciting winding on a relay which has an opposed exciting winding fed by the D.C. load current. In the latter case an impulse generated in a third winding on the relay is used to initiate a protective action. In a further arrangement, Fig. 4, current transformers 6 feed inductances 40 the cores of which are normally saturated by the D.C. load current in windings 41 so that substantially no voltage appears at the terminals of the inductances. Under fault conditions saturation is removed by the drop in load current and the resulting voltage appearing at the terminals of the inductances is used to energize through auxiliary rectifiers 54 busbars 42, 43, whereupon a blocking voltage is applied through a glow discharge tube 47 to the grids 46 of the converter. Excess voltage on the bus-bars 42, 43 is prevented by glow discharge tubes 52.
Patent GB-272990-A (GB)
Title: Improvements in or relating to electro-magnetic apparatus for use with gramophones in conjunction with loud speaking telephonic apparatus
IPC: H04R11/08
Filed: 1926-03-19
Abstract: 272,990. Rickets, W. J., and Paddle, L. K. March 19, 1926. Magnetic instruments.-Relates to apparatus for use in gramophones associated with telephonic loud-speaker apparatus. At the end of the tone-arm is mounted a non-magnetic holder 1, Fig. 1. in which is supported by screws 6a a U-shaped permanent magnet 5, shown diagrammatically in Figs. 5 and 6. Secured to the pole-piece 5a is a plate 6 of magnetic material on which are disposed the soft-iron cores 7, 8 of a polarized electromagnet. Between the lower ends of the cores 7, 8 and the lower forked pole-piece 5b of the permanent magnet, a soft iron armature 14 is disposed, the ends of which extend under the polar faces of the cores 7, 8. The armature is pivoted at 12<a> in a stirrup 11 of non-magnetic material connected in a detachable manner, as at 11<c>, Fig. 1, to a, non- magnetic closing member 4 fixed in the lower part of the holder 1. The pivot axis may be below the plane of the armature, as shown, or in that plane. Extending at right-angles to the armature is the stylus-lever 12, which may also form the pivot member. The armature movements are damped by pads 15 and the bearings 12a may be rubber-lined journal bearings. The electromagnet windings 9, 10 are connected in series to terminals 3 on the holder 1 and the central point 3a of the windings may be earthed through a terminal 3<a>, if desired. The felt or like damping pads 15 may be adjusted by setscrews 18.
Patent GB-558429-A (GB)
Title: Electron discharge device
IPC: H01J21/36
Filed: 1942-06-05
Abstract: 558,429. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. June 5, 1942, No. 7675. Convention date, June 6, 1941. [Class 39(i)] In a short-wave tetrode, the electrode supports and their spacers form a pile of elements clamped within a metallic tubular portion 10 of the envelope by a single screwed ring 16. The anode 17 is secured to an insulating disc 20 by an integral shoulder 19 and a screwed sleeve 21. The cathode lead and support tube 39 is similarly secured to disc 36. The control and screen grids 31a, 31 are similar in form and comprise wires 31 of flattened U-shape with their straight portions coplanar and parallel, clamped between rings 30, 30', Fig. 7, riveted to a ring 25. The rings have upset centres which fit into insulating support rings 32, 28. Interposed between the support rings are spacers 47, 38, 37 and 23 being metal and 24, 33 insulating. The ring 16 presses the whole assembly against the seat 13. Contact with the anode and cathode is made by sliding tubes 22, 42 ; the leads 34 for the grids are held frictionally in radial slots in members 25. The cathode proper 43 is supported within the tube 39 by three thin wires, arranged either tangentially or axially ; this reduces conduction losses. When the grid wires become heated in processing or use they expand longitudinally and do not bow out of their common plane and alter the electrode spacing; the rings 30, 30' are made of material having a lower coefficient of expansion than that of the grid wires, suitable pairs being molybdenum and tungsten, nickel and nickelchromium alloy. The wires are assembled roughly in the rings and hot-pressed into shape at a temperature exceeding any working or processmg temperature. The outer surface of the envelope 10 is coated with silver.
Patent GB-1433303-A (GB)
Title: Articles and coatings exhibiting antimicrobial properties
IPC: A01N55/10
Filed: 1974-02-20
Abstract: 1433303 Coated silica and titania DOW CORNING CORP 20 Feb 1974 [20 Feb 1973] 7722/74 Headings C1A and C1N [Also in Divisions B2 and C3] A filler (F) is coated with a polymeric organosilicon compound (S), which inhibits the growth of fungi, bacteria, or algae, having units (I) where: X is an acid anion; each R is independently a C 1-20  hydrocarbon radical; R<SP>1</SP> is a #C 20  hydrocarbon radical or a radical containing only C, H and groups, where R<SP>11</SP> is H or C 1-6  alkyl radical; Y is OH or a hydrolysable radical; and a is 0 or 1. Also present may be substituted siloxanes where R<SP>111</SP> is an optionally halogenated hydrocarbon radical. The fillers (F) may be coated with a solution of the silicon compounds or their hydrolysable predessors, e.g. in water or an organic solvent, followed by drying or heating. Fillers (F) include staple fibres, chopped strands, or beads, or powders, e.g. of TiO 2 , Al 2 O 3 , ZnO, MgO, Fe oxide, CaCO 3 , MgCO 3 , glass, SiO 2 , diatomaceous earth, ground quartz, mica, asbestos, Al silicate, CaAl silicate, MgSiO 3 , or ZrSiO 4 . In the examples, (F) is (1, 2, 3, 5) silica, (4, 9) diatomaceous silica, (6, 7) 10 Ám. crystalline silica (8, 12) fume silica, and (10) TiO 2 . The coated filler is used to fill a polymeric matrix to form an article on or in which the growth of fungi, bacteria, or algae is inhibited.
Patent GB-1162327-A (GB)
Title: Improvements in or relating to Dental Handpieces
IPC: A61C1/05
Filed: 1968-02-16
Abstract: 1,162,327. Dental handpiece. HONEYWELL Inc. 16 Feb., 1968 [27 Feb., 1967], No. 7752/68. Heading A5R. [Also in Division F2] A turbine type dental handpiece comprising a rotor 20 supported on air bearings 51 and 52 in a casing 15 is characterised by the means for clamping the dental tool into the turbine. The means comprise a collet 30 fitting slidably within the axial bore D26 of the turbine shaft 21, the end portions of which are slotted at 35 to fonm jaws which are radially compressible to clamp the shank of the dental tool and which are urged inwards 'by bearing against the conical edges 32 of the shoulder 31 inside the lower end of the bore 26 and the similarly shaped ends 38 of the clamping piece 37 slidable in the bore 26 and urged towards the collet by the driving element 40 threadably engaged with the the dental tool by means of a wrench fitting bore 26 and adjustable to clamp or unclamp in the hexagonal socket 41.
Patent GB-334832-A (GB)
Title: Improvements in and relating to coin-freed machines
IPC: G07F9/10
Filed: 1929-03-09
Abstract: 334,832. Moser, V. S. March 9, 1929. Delivery of articles stored in piles; storage.- In coin-freed machines for vending articles of a perishable nature, such as ice cream bricks, &c. the articles are stored in removable containers f formed with inner and outer walls having retrigerating or heat-insulating material between them and closed at the bottom by sliding doors f<2>. The containers are filled in a factory and transported to the machines to replace empty containers, the construction of the container and the door f<2> preventing access of warm air to the. packets during transit. Each container has a fixed or detachable cover f<1> and the door works over a wooden block f<3> formed with an aperture to allow the packets to drop through. The bottom packet may be a dummy block and a follower of solidified carbon dioxide or other cooling medium may be placed on top of the packets. When the container is placed in the machine in a cooling chamber e, a lip on the door f<2> engages a lug b<1> on the delivery drawer b so that the door f<2> is withdrawn for removal, when the drawer is pulled out. The attendant operates the drawer a second tima to remove a bottom dummy packet, if such is provided. The chamber e may be connected to the container f and removable with it. In a modification, Fig. 5, the inner and outer walls of the container are spaced a considerable distance apart, the chamber e being dispensed with, and the door f<2> slides between the upper and lower parts of a wooden base f<3> in which there are spring catches g engaging holes in the door to lock this in position. Pegs i on the base of the machine release the catches, when the container is placed in position. A flexible hand strap k is provided for carrying the storage container.
Patent GB-1270884-A (GB)
Title: Improvements in or relating to heating and ventilating systems for motor vehicles
IPC: B60H1/00
Filed: 1970-02-18
Abstract: 1,270,884. Heating and ventilating motor vehicles. SOC. ANON. AUTOMOBILES CITROEN. 18 Feb., 1970 [26 Feb., 1969], No. 7830/70. Heading F4V. A heating and ventilating system for a motor vehicle comprises a cylindrical air distribution chamber T having a warm air inlet duct 3 controlled by a shutter 1, a fresh air inlet duct controlled by a shutter 2, at elast one upward extending outlet duct divided into channels H 1 , H 2  and at least one downward extending outlet duct divided into channels B 1 , B 2 , and an air distributer member 5, 6 rotatably mounted in the chamber T and adjustable to three positions in which the warm air is directed to channels H 1  and H 2 , B 1  and B 2  or H 1  and B 1  and the fresh air to channels B 1  and B 2 , H 1  and H 2  or H 2  and B 2  respectively. In the form shown, the fresh air inlet duct enters the chamber T axially and half of the inlet is always closed by an end flap 6 of the distributer member, to prevent mixing of the warm and fresh air streams. The fresh and warm air ducts may be transposed, or fresh air inlet ducts provided at both ends of chamber T, in which case flaps 6 are provided at both ends of the distributer member. The member 5, 6 is made of sheet metal. A lever controlling the member 5, 6 may be urged to the three main positions of the member. The shutters 1, 2 are also lever controlled.
Patent GB-179740-A (GB)
Title: Improvements relating to spraying apparatus
IPC: B05B11/06
Filed: 1921-03-12
Abstract: 179,740. Saxelby, C. A. O., and Benton & Stone, Ltd. March 12, 1921. Check elastic valves.- In spraying-apparatus in which liquid is ejected from a container by air pressure, of the kind comprising a glass, hardrubber, or other non-corrodible fluid container g enclosed within a metal body a, the vessel g is provided with a rubber cap h held in place by means of a metal ring i, which is pressed downwards by a spring j bearing against the lid b of the metal body. The rubber cap is perforated for the insertion of the glass tube f, so that while it grips the tube it allows air under pressure to pass to the interior of the container g.
Patent GB-822964-A (GB)
Title: Engine oil cooler
Inventor: UPTON HENRY EDWARD
IPC: F01P11/08
Filed: 1957-03-11
Abstract: 822,964. Oil cooling radiators. SERCK' RADIATORS Ltd. Feb. 26, 1958 [March 11, 1957], No. 7896/57. Class 64(3) An oil cooler for a diesel or like engine comprises a cooling- air duct a in which is located a fan d, an annular inner oil duct f disposed around the fan bearing b, oil inlet and outlet outer ducts disposed around the air duct a and tubes k interconnecting the inner and outer ducts. In the form shown, three outer ducts h, h<SP>1</SP> and h<SP>2</SP> are provided and the inner duct f is divided into two parts by a partition g. Oil from the engine enters the duct h by way of an inlet i and makes four passes across the air stream in passing through the tubes k to an outet i<SP>1</SP> from the outer duct h<SP>2</SP>. A further form is described in which the partition g is omitted and only two outer ducts are provided so that the oil makes only two passes across the air stream in flowing through the tubes k. Secondary heat transfer sure face m, n is provided on the tubes k.
Patent GB-333551-A (GB)
Title: Electric switch device
IPC: H01R13/707
Filed: 1929-03-11
Abstract: 333,551. Fagerlund, E. A., and Tillquist, H. T. March 11, 1929. Plug-and-socket couplings combined with switches. A switch 7 housed in a socket fitting 1 is operated by turning a socket member 26 by means of the plug member 31, the socket member having a flange 24 held down by spring-pressed balls 30 against a .packing ring 29 to close the housing 1. Sockets 27, 28 make contact with springs 19, 20 upon a rectangular block 18 and electrically connected to the switch 7, the block entering a recess 23 in the socket member 26 and forming the operating means for the switch. The plug 31 has lateral projections that pass through slots in the cover 2 forming a lock to prevent removal of the plug when the switch is closed and engaging stops to limit the turning movement. The projections have pins that engage the flange 24. A push button switch operated by cam surfaces on the member 26 may be employed.
Patent GB-845938-A (GB)
Title: Improvements relating to electrodialytic processes
Inventor: TYE FRANK LAURENCE
IPC: B01D61/44
Filed: 1958-03-12
Abstract: 845,938. Electrodialysis PERMUTIT CO. Ltd. March 6, 1959 [March 12, 1958], No 7980/58. Class 41. A first stream of liquid containing an electrolyte in solution and a non-electrolyte is subjected to electrodialysis to remove the electrolyte by passage through alternate compartments of an electrodialytic cell divided into compartments by membranes, each compartment being bounded on one side by a membrane selectively permeable to ions of one sign and on the opposite side by a membrane selectively permeable to ions of the other sign, while a stream of a solution of an electrolyte is passed through the other compartments to provide an electrically conducting path and to receive ions migrating from the first stream, a small bulk flow of liquid from the second stream to the first stream on each side of it being produced by setting up a pressure difference across the membranes, which are of such porosity as to permit this flow to take place. The pressure difference may be set up by applying a back pressure to the second stream e.g. by restricting the flow or by using a stand-pipe to raise the level of discharge. The membranes may be of a matrix of a thermoplastic polymer containing sulphonated cross-linked polystyrene (cationselective) or chloromethylated and aminated cross-linked polystyrene containing quatenary ammonium groups (anion-selective), and the porosity may be controlled by regulating the cross-linking of the resin, the proportion of the resin in the matrix or the temperature and pressure during moulding of the resin, or by including a fine powder e.g. starch which is later removed e.g. by hydrolysis. The process is applicable to the de-salting of glycerine. Specification 845,653 is referred to.
Patent GB-878658-A (GB)
Title: Improvements in and relating to gas blast circuit breakers
IPC: H01H33/16
Filed: 1958-03-12
Abstract: 878,658. Gas-blast switches. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). March 12, 1958 [March 19, 1957; July 4, 1957; July 22, 1957], No. 7985/58. Class 38 (5). A gas-blast circuit-breaker with a pressure chamber and a discharge chamber connected by the contact gap when the contacts separate, has a blast value in the wall of the discharge chamber and lever linkage in the discharge chamber connecting the moving contact to a power drive. In Fig. 1 pressure gas from the reservoir 9 passes through passages 13 to the pressure chamber 1, 19. When a coil 10a operates a valve 10 gas passes to a piston 7 driving a rod 5 to the right against a bias spring 6. The rod 5 moves a pivoted lever 4 having a lost-motion connection with the contact 3 and coupled to the valve 15 by linkage 17 including links a, b which are moved over-centre by a lever d to allow the valve 15 to reclose at the end of the contact travel when the lever d engages a stop f. Alternatively, the linkage may be moved over-centre by pneumatic means (Figs. 5 to 7, not shown). In Fig. 8 (not shown), the blast valve also controls gas from auxiliary contacts in series with a parallel switching resistor. The valve may also control the gasblast from two sets of series contacts (Figs. 9 and 10, not shown). In Fig. 11 the valve 110 opens and drives the extension 109a of a contact actuating rod 109 which can also be driven by a piston 117 fed with pressure gas through a narrow pipe 115. The contacts 3 are operated by means of an over-centre spring 114 and closing movement is effected by the admission of pressure gas to a pipe 118.