baber/WOPTO huggingface dataset:
Patent GB-519599-A (GB)
Title: Improvements in or relating to apparatus for the treatment of grain and like granular materials
IPC: F26B17/12
Filed: 1938-10-14
Abstract: 519,599. Drying grain. RILEY, G. W., and SCOTT & SON (LONDON), Ltd., G. Oct. 14, 1938, No. 29869. [Class 34 (ii)] Grain and like granular material is dried or treated by falling down within externally heated multitubular apparatus in which each tube has staggered deflectors in the form of inverted scoops 2 with one edge against the tube from which the scoop extends downwardly. The scoops are mounted on two bars 3, 4 connected by pivoted links 5 and having bent ends 6, 7 so that the bars open against the tube when lowered therein. Specification 479,090, is referred to.
Patent GB-1473352-A (GB)
Title: Substituted fluorophosphazenes having pesticidal properties
IPC: C07F9/6593
Filed: 1974-07-05
Abstract: 1473352 Preparing fluorophosphazene isocyanate BASF AG 5 July 1974 [10 July 1973] 29873/74 Heading C1A [Also in Division C2] Fluorophosphazene isocyanate (N 3 P 3 F 5 NCO) is obtained by reacting N 3 P 3 F 5 NSO with phosgene. The N 3 P 3 F 5 NSO is preferably placed in a solvent, generally one boiling at above 110 C., e.g. chlorobenzene or tetrachloroethane, and the phosgene then passed in at 20 to 100 C. The reaction may be accelerated by the addition of a catalytic amount of pyridine. An example is given.
Patent GB-1153943-A (GB)
Title: Method Of Moulding Friction Elements
Inventor: GILBERT RICHARD HEALY
IPC: B29C43/00
Filed: 1967-06-28
Abstract: 1,153,943. Moulding friction elements. ABEX CORP. 28 June, 1967, No. 29913/67. Heading B5A. A friction element is formed from a mixture of solid filler particles and a thermosetting resin binder by: (a) mixing the resin in a partly cured state with the filler and optionally a solvent, (b) heating the mixture to evolve the solvent and reaction gases without curing; the mixture remaining flowable, (c) compacting the mixture under pressure at a temperature below the curing temperature, and (d) removing the compacting pressure and heating the mixture to cure. The resin and filler are preferably mixed and heated mechanically by churning in a chamber fitted with a screw thread, the screw extruding the mixed material through a hole in one end of the chamber.
Patent GB-1277097-A (GB)
Title: Improvements in or relating to sound recording and playback apparatus
IPC: G11B15/18
Filed: 1969-06-12
Abstract: 1277097 Cassette recorders STAAR SA 12 June 1969 [14 June 1968] 29937/69 Heading G5R Fast wind or rewind in a cassette tape recorder is automatically stopped by operation of a solenoid when a silent passage of predetermined duration is detected. As shown, a cassette 3 is loaded between guides 1<SP>1</SP> to engage tubular members 9, 10 and thereby raise a plate 2 to insert capstan 6<SP>1</SP> and spindles 7, 8 into the cassette as in Specification 1,080,082. A pin 11 on a spring-loaded lever 57 pivoted to the plate at 56 engages with a latch 14 and in so doing slides a rod 32 to rotate a lever 34 out of the path of the right hand tubular member 9, 10 and operate a slide switch 43 to connect the transducing head 5 to circuitry 63, 69. A control member 21 may be rotated to left or right to control rewind or fast wind. The member 21 is associated with a cruciform member (29, Fig. 6, not shown) whose arms engage either of the tubular members to withdraw the cassette clear of the head 5 and capstan/pinch roller drive where it is locked by a roller 38 and lug 36<SP>1</SP> on the lever 34 which is loaded by spring 36. The switch 43 is operated to connect a head 50, mounted so as always to engage the tape, with circuitry 63, 71 to detect the silent passage. When this occurs the solenoid 47 is energized sufficiently to partly rotate the lever 34 and thereby release the tubular member 9, 10 so as to allow the spring 59 to return the cassette to its normal operating position, this movement also rotating the lever 34 to its normal position and restoring the switch. A further set of contacts serve to increase the amplifier gain during fast wind or rewind. The cassette is ejected by pushing in control member 21 to cause pin 22 to engage cam 23 and disengage the latch from the plate 2 which returns to its inoperative position under spring force (not detailed).
Patent GB-228819-A (GB)
Title: Improvements in or relating to loomers' slay-hooks
IPC: D03J1/14
Filed: 1924-12-13
Abstract: 228,819. Johnson, F. Dec. 13, 1924. Weavers' tools.-The two swells 1 on opposite sides of the blade 5 of a slay hook are arranged one above the other as shown, the recesses 3 in the jaws 2 of the handle being correspondingly arranged.
Patent GB-213529-A (GB)
Title: Improvements in and relating to advertising apparatus
IPC: G09F15/00
Filed: 1923-11-29
Abstract: 213,529. M÷ller, C. Gleerup-. March 29,1923, [Convention date]. Articles to be displayed, rotating supports for; illumination, changing advertisements by controlling.-A rotary vertical polygonal drum a divided into radial compartments for displaying articles has the compartments fronted by transparent mirrors e so that the articles are seen only when the compartments are interiorly illuminated. The drum a is mounted on a ring h which rides on three grooved rolls k each on a shaft l driven through gearing o, p, r, r<1>, t by a motor u. The compartments are lit by lamps z - - z<3> hidden by screens a - - a<3>. The lamps are connected to contacts x on the ring h which engage stationary contacts y to light the lamps in any required sequence. The mirrors e may bear advertisements.
Patent GB-886249-A (GB)
Title: Improvements in automatic digital signal keyers
IPC: H04L15/22
Filed: 1958-09-19
Abstract: 886,249. Code telegraphy. CURTISSWRIGHT CORPORATION. Sept. 19, 1958 [Sept. 23, 1957; Feb. 3, 1958], No. 30112/58. Class 40(3). A Morse code signal is formed by combining a multivibrator 104 pulse train 106 with a dot bridging pulse produced when a stepping switch 102 finds a required dash in its search of character-storing encoder 159 and combining the resulting train 112 from circuit 110 with a short space bridging pulse in mixer 119 when a required long space is found in the encoder. As applied to apparatus for use with a trainer simulating an aircraft instrument landing system the code signal comprises letter I followed by a hypothetical call sign AXE, train 108. A stable multivibrator 104 is started at regular intervals and runs until terminated by the end of the code signal. Trigger circuit 110 output train 112 follows that of the multivibrator until time 11 prior to which switch 102 has routed a second character-element count signal (corresponding to the second element in letter A) to encoder 159 wafer 722, Fig. 4, the. ensuing dot bridging pulse 114, train 113, from dash counter 168 into trigger circuit 110 forming dash pulse 118, train 112; dash pulses 160, 896 are formed similarly via encoder wafers 732, 734. A short space bridging pulse 122, train 120, from unit 188 is produced to form the corresponding space 179, train 108, at the end of letter A via encoder wafer 723; the space at the end of a four-element letter, e.g. X, originates from a fifth character-element count in unit 126 and line 158. The space 853 at the end of letter I is' made especially long by a wiring arrangement to encoder wafers 711 . . 714 which does not follow the arrangements on call sign character wafers 720, 730, 740. The code signal 108 actuates a triode-controlled -relay which keys audiofrequency tone to the student pilot's headphones. The circuits of the units of Fig. 1, excepting- encoder 159 (which is given in Fig. 3), include (1) a character-element binary counter incorporating three bi-stable multivibrators in cascade feeding a diode matrix with five output lines corresponding to the maximum of four character elements plus the inter-letter long space, Fig. 3 (not shown), and (2) diode AND, OR gates associated with triggered multivibrators 110, 161, 175. Additional facilities, Fig. 2 (not shown). A switch provides for continuous tone output prior to code signal generation when simulating distance measuring equipment. Provision is made for less than four letters per code signal. Circuit arrangements are included for transmitting the call sign successively to the A and N sectors when simulating radio range operation.
Patent GB-778729-A (GB)
Title: Improvements in or relating to the "permanent" waving of human hair
IPC: A61K8/66
Filed: 1954-10-20
Abstract: A solution for the "cold" permanent waving of human hair comprises a hair-reducing compound and a small percentage of yeast.  The hair-reducing compound may be ammonium thioglycollate and the amount of yeast may be between one and three per cent by weight of the solution, the pH of which may be adjusted to 9-9.5 with ammonia.  The yeast may be brewers' yeast.
Patent GB-1432384-A (GB)
Title: Metal-to-metal tube seal
IPC: F16L27/053
Filed: 1973-06-26
Abstract: 1432384 Pipe couplings. CATERPILLAR TRACTOR CO 26 June 1973 30277/73 Heading F2G In. a metal to metal seal for interconnected tubes 10, 11, line contact is made at L between two toric surfaces of substantially equal curvature. In another form, spherical surface portions (18, 19, Fig. 2, not shown) permit relative angular adjustment of the tubes.
Patent GB-245915-A (GB)
Title: An improved automatic coupling for railway vehicles
IPC: B61G3/22
Filed: 1924-12-17
Abstract: 245,915. Rotmistroff, V. Dec. 17, 1924. Couplings, automatic; combined buffer and draw-gear.-Each coupling head 2 Fig. 1, is provided with a pin 6 by which is mounted a pivoted hook-shaped coupling member 5, a depending bar 11 forming a guide and a, bent guide member 8 extending across the head and abutting the lower edge of a vertical lug 7 which forms the cooperating member for the opposing coupling member 5. Each coupling head is provided with a spring buffer 22 which takes up the slack between the heads and also pushes back a rocking bolt 13 to wedge the coupling member 5 in the locked position on impact of the vehicles by means of a dog 14, Fig. 8 on the bolt engaging a surface 20 on the member 5. A similar lug or pawl 19 at right angles to the dog 14 is provided on the bolt, 13 to open the member 5 when the bolt 13 has been turned at right angles to its locked position and moved forwards bv levers connected to its rear extension the levers being operated from the side of the vehicle. These levers are connected by a wire to a weight suspended from a cord which breaks when subjected to. a shock above the normal so that the bolt 13 is turned to unlock the coupling. The combined buffing and draw-springs 26, Fig. 2, are of spiral form and may be housed in a box which swivels. The coupling bars 1 may be provided with the usual links so as to yield on curves and the coupling heads are held at an angle to the axis of the vehicle by a weak spring. Specification 208,565 is referred to.
Patent GB-1517851-A (GB)
Title: Method for moulding resin bonded high friction materials
IPC: B29C48/29
Filed: 1976-07-21
Abstract: 1517851 Mixing apparatus PENNWALT CORP 21 July 1976 [18 Nov 1975 5 Dec 1975] 30414/76 Heading B1C [Also in Division B5] Brake shoes, pads, or blocks, of asbestos fibre and thermosetting resin, are compression moulded at a press A from preforms injection moulded in a machine 14, to which a dry mixture of the fibre and resin is mechanically delivered by a flexible rotary auger conveyor 40, acting within an enclosed housing 22, between an enclosed storage container 20 and an enclosed hopper 48 of the machine. The container 20 is sealingly mounted to an agitator 10 having an outlet 38 from which the delivery is effected to the hopper by the auger 40, which is rotated by a hydraulic motor 42 mounted to the hopper 48 or adjacent the outlet 38. The agitator 10 comprises a rotated shaft 28 carrying a plurality of radially extending agitator fingers 30a, 30b, 30c of which a single finger 30b is of a greater length to project into the outlet 38, and fingers 30c are of a decreasing length towards the finger 30b and carry a helical strip 31 around their periphery for conveying the material across the outlet 38. Injection and heat plasticisation is intermittently effected upon intermittent rotation of an injection screw 52, during which the material is delivered to the screw 52 by advancement of a ram 44 within the hopper 48. The mixture is simultaneously injected into one or more preform cups 70, with preform detachment from the machine performed by a guillotine knife, located within a housing 74. The apparatus is subject to overall control by step circuitry, Fig. 6 (not shown), with the ram 44 and agitator shaft 28 and conveyor 40 only being operable during rotation of the screw, by the power feed to their motors being in parallel with that of the screw motor 50. The auger 40 is controlled by a manually or automatically operable electrical circuit which includes a safety switch operative to prevent operation of the shaft 28 when the agitator 10 is open. The circuit incorporates a time delay relay (TDR1) for preventing overfeeding to the hopper by the auger 40, subject to being overriden by a further time delay relay (TDR2) when the material in the hopper 48 rises to a level sufficient to actuate a level detector, the auger 40 then being stopped for a time delay which commences only upon the level of the material dropping below that at which the relay (TDR2) was actuated. The action of the relay (TDR1) is otherwise initiated and terminated by upper and lower limit switches actuated by the plunger 44, the timing function acting to stop auger 40 if the amount of material in the hopper results in the downward displacement of the ram 44 being protracted. The lower limit switch also acts to reverse the movement of the ram 44 whose upward movement may also be effected upon termination of rotation of the screw 52.
Patent GB-660256-A (GB)
Title: Improvements in processing malting grain on malting floors
IPC: C12C1/15
Filed: 1947-11-17
Abstract: 660,256. Malting-apparatus. HEIDENSTAM, E. J. VON. Nov. 17, 1947 [Nov. 20, 1946], No. 30479/47. Class 14 (ii). [Also in Group II] In an apparatus for turning, agitating and airing malting grain on malting floors, consisting of a car 2 movable along the malting floor and carrying a member which is rotatable on a carrier shaft on said car and which in turn carries a rotor 1 provided with shovels or buckets 3 for turning, agitating and airing the malting grain, said rotor extending substantially at right angles to the direction of motion of said car, the said rotor has the shape of a drum extending substantially across the whole apparatus and is provided with shovels or buckets, while the outer diameter D of the secondary movement of rotation of the turning rotor is greater than 1.25 times the diameter d of the turning rotor, preferably 7 > D/d > 2. The travel distance #l of the car between the cycles of engagements of the turning rotor may be less than 4 times the height h of the grain, especially 2h >#l>#h. The car may also be equipped with scrapers or ploughs for spreading the steeped grain evenly on the malting floor. The peripheral speed of the shovels is greater than 0.5 metres/see. especially greater than 1 metre/sec. so as to cause a throwing effect and not a mere displacement of the malting grain.
Patent GB-440451-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H03F3/36
Filed: 1934-10-25
Abstract: 440,451. Valve amplifying circuits. KRAWINKEL, G., Bothstrasse, Lichterfelde, Berlin. Oct. 25, 1934, No. 30621. Convention date, Oct. 25, 1933. [Classes 39 (i) and 40 (v)] A direct-current amplifier comprises two branches having equal gain, one of which produces one more phase reversal than the other and the two branches are fed in push-pull, the outputs being fed to a common circuit in which are balanced out fluctuations in the supply voltages or electron sources which act equally in the same phase on the two branches. In all the embodiments described the valves of each branch are resistance coupled and are one greater in number in the lower branch than the upper. In one embodiment, Fig. 2, each pair of valves has a separate grid and anode battery while the grid of the extra valve in the lower branch is maintained at the correct potential by the inclusion of a resistance r<1> in its grid circuit carrying current from a source E through the resistance r<2> and the anode resistance ra<1> of the preceding valve. The resistance Ra constitutes the common anode resistance for the end valves of both branches the output of the amplifier being derived from the terminals e, f connected thereacross. Neutralizing condensers k are connected in each case between the anode of a valve and the grid of the preceding stage, while a reaction condenser C is connected between the grids of valves in the two branches which are in phase and the resistanee r<1> is bridged by a condenser K. The anode and grid sources of potential may be replaced by a current carrying potential divider. In other embodiments, Figs. 3 and 4 (not shown), the valve cathodes are at a common potential, a common anode source is provided and the grids are all maintained at the appropriate potential by resistances carrying current from a common source. A circuit for giving a push-pull output, Fig. 5, comprises two such systems, the first of which comprises the branches having valves R1, R2 and R1<1>, R2<1>, R3<1> respectively, while the branches of the second system comprise valves R1, R3, R4 and R1<1>, R2<11>. The first system produces an output across the terminals c, d which is out of phase with that across e, d produced by the second system. In order to eliminate the Sehrot effect from the earlier stages of the amplifier, the corresponding valves in the two branches are arranged with a common electron source such as the cathode H, Fig. 6, common to the two triode systems H, G1, A1 and H, G2, A2. Another double triode valve for the same purpose comprises an electron source H, Fig. 7, an accelerating electrode a with an opening through which electrons pass to be spread into a space charge cloud by a retarding grid BG which feeds the triode systems G1, A1 and G2, A2. To prevent the return of electrons to the electrode a suitable insulation may be provided.
Patent GB-280915-A (GB)
Title: Improvements in and relating to motor vehicle cooling and ventilating systems
IPC: B60H1/26
Filed: 1927-11-15
Abstract: 280,915. British Thomson-Houston Co., Ltd., (Assignees of Baldwin, H. S.). Nov. 18, 1926, [Convention date]. Cooling motors, air blast and deflectors for.- The front wings 21 are made hollow and flared at 24. One conveys cooling air to an electric generator 15 and the other to an electric motor 14.
Patent GB-821790-A (GB)
Title: Method of preparing sustained release particles and the product of the method
Filed: 1957-10-01
Abstract: A sustained release pharmaceutical powder is prepared by reducing a solid medicament to a particle size of a maximum of 10 microns, mixing the thus-formed particles in a liquefied lipid material which is substantially water-insoluble and has a melting-point of above 85 DEG  C., solidifying the thus-formed mixture and then reducing the solidified mixture to form a primary powder having a maximum particle size in the range of from 5 to 25 microns, mixing the thus-formed powder with a melt of a lipid material which is substantially water-insoluble, emulsifiable with water, resistant to disintegration in the gastro-intestinal tract, and has a melting-point which is lower than the melting-point of the first-mentioned lipid material, mixing the powder-lipid mixture with water to form an emulsion while maintaining the mixture at a temperature of from above the melting-point of the second-mentioned lipid material and below the melting-point of the first-mentioned lipid material, cooling the emulsion to a temperature below the melting-point of the second-mentioned lipid material to precipitate the sustained release pharmaceutical powder.  The first-mentioned lipid material may be in weight 5-35% of the total weight of medicament and lipid and may be resistant to disintegration in the gastro-intestinal tract.  The second-mentioned lipid material may be in weight 25-85% of the total weight of primary powder and lipid and its melting-point should preferably be at least 5 DEG  C. and advantageously 15 DEG  C. below the melting-point of the primary lipid.  The maximum size of the coated particles is 100 microns. Surface-active agents may be added to aqueous suspensions thereof. Specified primary coating materials are acrawax, carnauba wax, montan wax, chlorowax, stearamide, lauramide, myricyl alcohol, myristyl alcohol, hydrogenated castor oil, glyceryl tri-12-hydroxy stearate and the following mixtures: hydrogenated soy bean oil and ethyl cellulose, hydrogenated lard and ethyl cellulose, beeswax and ethyl cellulose, beeswax and methyl cellulose.  The primary coating may be liquefied by heating and/or by the use of an organic solvent such as carbon tetrachloride, chloroform, trichloroethane, petroleum ether, benzene, toluene, ethyl acetate, xylene, nitrobenzene, acetone, ether, carbon disulphide, methyl ethyl ketone, methyl, ethyl and isopropyl alcohol.  Specified secondary coating materials are beeswax, Japan wax, stearyl alcohol, cetyl alcohol, carnaubyl alcohol, cyryl alcohol, glyceryl distearate, glyceryl monostearate, glyceryl trimyristate, hydrogenated lard.  To facilitate making an emulsion with water emulsifying agents, e.g. sodium lauryl sulphate may be added.
Patent GB-391833-A (GB)
Title: Improvements in or relating to gas purification processes and apparatus therefor
IPC: C10B27/00
Filed: 1931-11-05
Abstract: 391,833. Revivifying gas - purifier waste; coke-oven plant. KOPPERS CO. OF DELAWARE, Koppers Building, Pittsburg, U.S.A.-(Assignees of Becker, J.; Koppers Building, Pittsburg, U.S.A.) Nov. 5, 1931, No. 30711. Convention date, Nov. 5, 1930. [Class 55 (ii).] In the purification of coke oven gas, air fouled during actification of a gas-washing liquid is supplied to the combustion chamber of the coke oven. Coke oven gas from a battery 1 flows from a crossover main 4 to a bye-product apparatus before proceeding to an absorption tower 7 for the removal of hydrogen sulphide from the gas by means of a salt solution. Impure liquor flows into an actifier 10 wherein air is forced in countercurrent direction. The impure actifier air then passes to a water or oil scrubber 15 for the removal of entrained salt solution before proceeding to a heater 19 from which it is supplied to the combustion chambers of the battery. A reversing mechanism 27, driven electrically, controls the admission of gas and air to reversing boxes 26 for distribution along both sides of the battery.