baber/WOPTO huggingface dataset:
Patent GB-597308-A (GB)
Title: New aluminium base alloys
IPC: C22C21/00
Filed: 1945-08-14
Abstract: An aluminium alloy has the following compositions: Mg 4.00-14.00 per cent, Ca 2.00-12.00 per cent, Si 0.01-3.00 per cent, Fe 0.01-1.50 per cent, Al the remainder.  The alloy may contain one or more of the following elements, namely: Mn not exceeding 3.50 per cent, Cu not exceeding 5.00 per cent, Ni not exceeding 5.00 per cent, Sb not exceeding 3.40 per cent, Sn not exceeding 5.00 per cent, the total of the said one or more elements not exceeding 6.00 per cent.  One or more of Zr, B, Be, Ti, V, Ce, Bi, Pb, Cd, Cr, Nb, W, Co, Li, Mo, La, Yt, Ga, Tl, Zn, Ag, Ta, Te, Th, may also be present, no one element being present in greater amount than 4.00 per cent and the total of the said elements not exceeding 4.50 per cent.  One or more of Na, K, Ba, P may be present, not exceeding a total of 0.25 per cent.  The aluminium content of the alloys always exceeds 66.00 per cent. The alloy may be used as a sand-casting or die-casting, or it may be heat treated.  The heat treatment consists of heating to a temperature not exceeding 500 DEG  C. followed by quenching or cooling in air.
Patent GB-229950-A (GB)
Title: Improvements in concealed safety pocket for garments
IPC: A41D27/20
Filed: 1924-09-04
Abstract: 229,950. Seewald, J. Sept. 4, 1924. Pockets. - Relates to trousers pockets, and consists in a safety pocket 20, with an opening at the top only and closed by a button or like fastening, within a main pocket formed by a flap 15 providing side and top openings to the main pocket when the corner of the nap is secured by a button 28 or like fastening. Preferably, a belt passes through loops L on the trousers, to give additional security. Access to the safety pocket is impossible through the side opening, and access through the top opening is possible only with the knowledge of the wearer.
Patent GB-586494-A (GB)
Title: Improvements in or relating to alumina catalysts
IPC: B01J21/04
Filed: 1944-10-27
Abstract: Alumina catalysts are prepared from precipitated and activated alumina which is free from alkali metal compounds by washing with at least 100 parts by weights of water, and reactivating by heating, preferably at not less than 300 DEG C. for at least 4 hours. Washing may be effected in a Soxhlet apparatus or by repeated decantation with hot distilled water, and the washing and heating steps may be carried out successively several times.  The alumina for treatment may be precipitated from aluminium chloride solution with ammonia or ethylene oxide, and activated by heating at not less than 300 DEG C. In an example the starting material is a catalyst which has lost some of its activity in use.  The catalysts may be used in vapour phase dehydration and deammination reactions, such as the conversion of ethanol to ethylene (see Group IV), aniline to diphenylamine, aniline and ethanol ethylanilines, and amines to phenols.ALSO:Ethylene is prepared by the vapour phase dehydration of ethanol in the presence of a catalyst prepared from precipitated and activated alumina which is free from alkali metal compounds by washing with at least 100 parts by weight of water and reactivating by heating (see Group III). The reaction is carried out at space velocities of 0.1, 0.2, and 0.5 litres of liquid ethanol per litre of catalyst volume per hour, and at temperatures of 310 DEG  C. and 357 DEG  C.
Patent GB-457178-A (GB)
Title: Process for the manufacture of sugar derivatives of 1,2-diamino-4,5-dimethyl-benzene
Filed: 1936-07-29
Abstract: Sugar derivatives of 1 : 2-diamino-4 : 5-dimethylbenzene are prepared by coupling 3 : 4-dimethylphenylamino-pentites or -hexites with diazonium salts and reducing the resulting azo compounds.  Suitable reducing agents are sodium hydrosulphite, zinc and acetic acid, or hydrogen in the presence of nickel.  The products are intermediates for the preparation of flavines. According to the examples: (1) 3 : 4-dimethylphenyl - laevo - arabinamine, obtained by condensation and simultaneous hydrogenation of 1 - amino - 3 : 4 - dimethylbenzene and laevo-arabinose according to Specification 445,405, is coupled with diazotized p-nitraniline or 2 : 4-dinitraniline, and the isolated azo dyestuff then hydrogenated in alcohol solution in an autoclave; the product consists of 1-amino-2-arabinamino-4 : 5-dimethylbenzene; (2) 1-(dextro-ribitylamino)-2-amino-4 : 5-dimethylbenzene is prepared by coupling diazotized p-nitraniline with 3 : 4-dimethylphenyl-dextro-ribamine, obtained by condensation and simultaneous hydrogenation of 1-amino-3 : 4-dimethylbenzene and dextro-ribose according to Specification 445,405, and reducing the azo product either with zinc and acetic acid or with hydrogen in the presence of nickel.
Patent GB-1372976-A (GB)
Title: Apparatus for delivering pneumatically conveyed fine-grained  material
IPC: B65G53/40
Filed: 1973-05-03
Abstract: 1372976 Shoots MIAG MUHLENBAU UND INDUSTRIE GmbH 3 May 1973 [6 May 1972] 21128/73 Heading B8S Apparatus for selectively delivering finegrained material into any one of a plurality of containers 41 arranged around an axis 4 of a rotatable member 5, whereby the member 5 includes an inclined shoot 6 for delivering material into the container 41 with which the lower outlet end of the shoot is aligned. The shoot 6 has a cylindrical inlet upper end the full diameter of the member 5, tapering down to a sector shaped outlet corresponding to similar shaped inlets in the containers 41. Material is pneumatically fed to the shoot-by a pipe 11 whose outlet is supported in a guide sleeve at the top of the member 5. Above the latter is mounted a cylindrical filter for reclaiming the material dust in suspension as the air passes therethrough, the reclaimed dust falling into the shoot 6 via a funnel 2. The member 5 is rotatable by a motor 9 and chain transmission 10.
Patent GB-362337-A (GB)
Title: Improvements in or relating to collecting electrodes for use in the electrical precipitation of suspended particles from gaseous fluids
IPC: B03C3/47
Filed: 1931-07-24
Abstract: <PICT:0362337/III/1> A collecting electrode for electrical precipitation apparatus has oblong perforations, the longer edges 1 of which lie at right-angles to the direction of flow of the gas whilst the shorter edges 2 lie in the same direction as the gas flow. The electrode may consist of a screen or wire mesh, and may be fitted with catch-spaces for the dust.
Patent GB-532394-A (GB)
Title: Improvements in or relating to flexible joints or supports
IPC: F16D3/76
Filed: 1939-07-21
Abstract: 532,394. Flexible joints. SILENTBLOC, Ltd., and ANDRE, T. B. July 21, 1939, No. 21281. [Class 108 (iii)] A flexible joint of the kind comprising an outer socket A and an inner pin or sleeve B, with a bushing D of rubber &c. between them, and abutments A<SP>1</SP>, B<SP>1</SP>, on A and B bearing on the ends of D, has the bushing bonded or fixed by adhesive to A and B, and the rubber engaging face of B<SP>1</SP> has a crosssection curved or inclined away from the longitudinal axis of the joint, while the adjacent face of the bushing is curved downwards and outwards. The face of the bushing which engages A<SP>1</SP> is curved downwards and outwards from B to A. In the form shown in Fig. 3, two bushes G are enclosed between abutments D<SP>2</SP> on the socket D and inner abutments E<SP>1</SP> on the sleeve E. In a modification of this form, the inner abutments are on the socket and the end abutments on the sleeve.
Patent GB-1502333-A (GB)
Title: Time ratio control systems for electric vehicle traction motors
IPC: B60L15/28
Filed: 1975-05-19
Abstract: 1502333 Control of DC motors GENERAL ELECTRIC CO 19 May 1975 [19 June 1974] 21283/75 Heading H2J In a D.C. motor chopper circuit a bypass switch 14 is connected across the main switching element (SCR 13) and is closed in the simultaneous presence of three signals, a first of which is provided when a forward or a reverse switch 16, 17 is closed, a second of which is provided when the voltage across the motor exceeds a predetermined value Vr 2 , and a third of which is provided either by a time delay 20 or a comparator 25, the time delay 20 providing an output a predetermined time after a switch 22 coupled to speed control means 23 is closed in the absence of plugging activity, and the comparator 25 providing an output when a voltage representative of the mark-space ratio of the SCR 13 exceeds a predetermined value Vr 1 . As shown, the signals are applied to an AND gate 19 whose output is connected to an SCR 15 in circuit with the bypass switch energizing winding. Switch 22 is closed when the speed control 23 is in its full speed position. The voltage on the wiper of 23 is applied to a controlled accleration circuit 27 whose output is applied to an oscillator 24 for controlling the main SCR 13 as well as the comparator 25. A current limit arrangement 28 is provided, the limit being increased when an output is provided by AND gate 19 to close the switch 14. The AND gate 19 is disabled should the battery voltage fall below a reference Vr 3  or should the motor current exceed a predetermined value. The arrangement may be used with shunt and compound wound motors as well as the series wound motor shown.
Patent GB-1462326-A (GB)
Title: Cutting inserts for use in rotary cutting tools
IPC: B23C5/22
Filed: 1975-05-19
Abstract: 1462326 Cutting inserts; milling cutters SECO TOOLS AB 19 May 1975 [24 May 1974] 21297/75 Headings B3B and B3K A reversible cutting insert for use in a rotary cutting tool such as a milling cutter comprises a flat polygonal shaped member with a peripheral surface which intersects with the flat faces 14 to form a plurality of primary cutting edges 10, each corner of the insert being provided with a pair of adjacent bevel faces 13, 21 which are separated by flat surface from a further pair of bevel faces 27, 28 the respective pairs of bevel faces being located at diagonally opposite corners of a rectangular insert and being at an angle of less than 90 degrees with opposite side faces 14 respectively, both adjacent bevel faces being at less than 90 degrees to their respective face 14 one of the bevel faces forming a secondary cutting edge 11, 30 which co-operates with a primary cutting edge in making a finishing cut when the insert is in use. The inserts are securable in angularly spaced positions around a cutter body 33 and are secured by screw 37.
Patent GB-464858-A (GB)
Title: Improvements in and relating to the control of electrical transformers and dynamo-electric machines
Filed: 1935-07-26
Abstract: 464,858. Automatic control systems. PARSONS & CO., Ltd., C. A., GILES, C., and TOPHAM, H. B. July 26, 1935, No. 21323. [Class 38 (iv)] Load distribution, electromotive force.-A system for ensuring balance of load between parallel feeders supplying a load comprises a differential relay which effects voltage adjustment of one of the supply feeders to restore balance and a time delay device which prevents unnecessary operation of the regulating means by out-of-balance currents of short duration. As shown in the Figure a load circuit C is supplied by two feeders A and B, load distribution being controlled by a differential relay 3 which effects adjustment of a tapped transformer on the appropriate feeder. The relay 3 has a voltage winding 4 and a current winding 4 fed from parallel opposed current transformers 1a, 1b associated with the feeders. If, e.g. the feeder A is taking less than its proper share of load a switch 6a closes and relays 8b, 7a are energized ; relay 7a opens the contacts 12 to prevent a tap changing motor 19b from being operated and closes contacts 16 to prepare the circuit of a tap-changing motor 19a associated with the feeder A in the raise direction ; relay 8b operates after a time delay sufficient to allow any preceding tap-changing operation to be completed, and closes contacts 8a so that the motor 19a operates to raise the voltage on the feeder A. The motors 19a, 19b have contacts 17a, 17b to enable a tap changing. operation to be completed after the contacts 6a open. Automatic voltage regulation is effected by a relay 18 which controls the raise and lower circuits of both motors. Manual control may be effected by means of pushbuttons 10.
Patent GB-776142-A (GB)
Title: Improvements in snap action electric switches
IPC: H01H5/18
Filed: 1951-09-11
Abstract: 776,142. Snap-action switches. HAYDON SWITCH, Inc. Sept. 11, 1951 [Sept. 16, 1950], No. 21392/51. Class 38(5) A switch intended to be operated by a slow-moving cam in which contact pressure is maintained up to the moment of snap-action, comprises a spring blade 30 formed with longitudinal slots 36 and crimped at 37. The greater part of the blade between the slots 36 is formed into an arch 38 such that the peak is offset to the arch centre towards that end of the blade fixed by a rivet 31 to a terminal member 11. A cam-operated actuator 39 has a tongue 40 passing freely through the terminal member 11 and a shoulder 43 abutting the peak of the arch 38 whereby on depression of the actuator 39 the blade 30 snaps into an S shape, the contact 33 leaving, a contact-carrying terminal member 12 and engaging a contact-carrying terminal member 13. The Specification gives the probable theory underlying the blade operation. The switch operation is adjustable by a screw 44 co-operating with a member 32 which bears against the underside of the crimped parts 37. The terminal members 11 .... 13 have holes 19 in their portions 18 beneath an insulating base 10 whereby wires may be soldered thereto; alternatively, as shown, members.20 ... 22 may be riveted in the holes 19 and the wires connected by screws 25.
Patent GB-746150-A (GB)
Title: Fluid pressure railway brake equipment
IPC: B60T15/30
Filed: 1954-07-22
Abstract: 746,150. Fluid - pressure railway brakes. WESTINGHOUSE AIR BRAKE CO. July 22, 1954 [Aug. 27,1953], No. 21397/54. Class 103 (1). A control valve assembly for fluid-pressure railway braking equipment intended particularly for trains in Europe wherein it is likely that as many as fifty or sixty per cent of the cars may have ineffective brakes or no brake equipment at all, comprises a main diaphragm control unit 5, a quick service valve device 6, a brake cylinder inshot valve device 7, a service selector valve device 8 and a reservoir release valve device 9, the assembly being connected to a brake pipe 2, auxiliary reservoir 3, brake cylinder 4, control reservoir 10, and quick service reservoir 11. The device is characterized principally in that charging of the auxiliary reservoir 3 from the brake pipe 2 takes place through conduit 22 and a passage 18 in the stem of the main diaphragm assembly 5 to chamber 17 above diaphragm 14 and then past restriotion 17, passage 151 and valve 57. If the auxiliary reservoir is charged at such a rate that the pressure above the diaphragm 14 in chamber 17 exceeds that below in chamber 15, which is in communication with the control reservoir 10, the diaphragm assembly will be moved downwardly thus tending to cut off passage 22 to restrict the rate of charging. Since the brake cylinder pressure acts in chamber 33 above top diaphragm 30 a similar regulation will take place during brake release of brake pipe pressure is increasing at an excessive rate. Connection between chamber 33 and the brake cylinder 4 is by way of chamber 103, which is in communication by choke passage 115, conduits 114 and 94, to the space below valve element 99 which may be lifted to allow the pressure to act below diaphragm 90 of the inshot valve assembly. It may thus be arranged by a suitable choice of the size of the choke 115 that when the pressure in the brake cylinder is increased to about ten pounds the valve 104 will be lifted to cut off flow to the brake cylinder except through restriction 37.
Patent GB-424160-A (GB)
Title: Improvements in metal frame-work units for constructional purposes
IPC: E04B1/58
Filed: 1934-07-21
Abstract: 424,160. Constructional metal units. BRANDT, E., 6, Rue de Rive, Geneva, Switzerland. July 21, 1934, No. 21407. Convention date, July 31, 1933. [Class 20 (ii)] A unit constructional member is formed of channelsection bars 1 providedwith end plates 4 by which they may be joined to adjacent bars of other units, and cross channel-bars 2 which are in inverted relationship with respect to the bars 1 and are provided with extended web portions, which engage over the edges of the flanges of the bars 1 and are turned down behind those flanges. The ends of the cross-bars are connected by a cross bolt 6 and a distancing sleeve 7, and plates 5 are bolted to the flanges of the bars 1, to provide abutments for the ends of the cross channels. The bars may be curved instead of straight. For joining adjacent units together when at an angle to each other, wedge-shaped inserts 3 may be used between the ends of adjacent bars.
Patent GB-644259-A (GB)
Title: Improved method and apparatus for the manufacture of massive glass
IPC: C03B19/02
Filed: 1948-08-13
Abstract: 644.259. Glass. SKLARNY A. RAFINERIE DRIVE J. RIEDEL. NARODNI PODNIK. Aug. 13, 1948, No. 21421. Convention date, Aug. 14, 1947. [Class 56] A suction mould comprises a cylindrical casing a having an open end to which a suction mouthpiece c is attached, with a second and smaller cylinder e arranged inside the first. The inner surface of the inner member is slightly conical, and a plate g is situated in the inner member. Glass sucked into the inner cylinder is allowed to cool therein when removed from the tank &c. and the solidified block is easily removed from the conical mould.
Patent GB-351765-A (GB)
Title: Improvements in cultivating-implements
IPC: A01B19/04
Filed: 1930-07-16
Abstract: 351,765. Implements for working land; land rollers. SCHUMANN, W., Gornitz, and WINKLER, O., Zeschwitz, both near Leisnig, Saxony, Germany. July 16, 1930, No. 21487. [Class 6 (i).] A combined hoeing machine and drill harrow comprises a carrier beam a connected by end brackets q to the axle r of two wheels s, hoes b connected to the beam a, and separate harrow units rigidly and adjustably connected to the beam a by arms i and clamps k, each harrow unit comprising a rectangular frame crossed by a sinuous or zig-zag bar e to which tines f are detachably connected, and earth-crushing disc rollers p being mounted in brackets depending from each harrow frame. The longitudinal bars c and cross-bars d of the harrow frames may also carry tines which are screw-threaded to receive securing nuts. The brackets carrying the rollers p may be adjustably secured on extensions of the frame-bars c, or in the arms i. The hoes and harrows may be raised from the ground by means of a handle-bar t.
Patent GB-391453-A (GB)
Title: Improvements in or relating to sliding doors, partitions, windows and the like
IPC: E05D15/06
Filed: 1931-07-28
Abstract: 391,453. Sliding doors. ROUSE, E. E., 1, Mornington Place, Camden Town, London. July 28, 1931, Nos. 21541/31 and 8843/32. [Class 20 (iii).] Sliding-doors are suspended by upper fittings secured to the door which fit and slide in a slotted tube or are adapted to slide between plates inturned at their bottom edges. Tubular fittings 3 with fins 4 to be secured in slots in the door engage a fixed guide tube 1 secured by wooden packing 7 to the upper door frame member ; the guide tube may be replaced by opposed plates 11 with inturned ends 13 and the hollow fittings 3 by solid fittings 14. The upper fittings to the door may be secured by side brackets 26 which are sunk into the edge of the door. For double sliding doors central packing 19, Fig. 5, is used between the inner guiding plates which form the guides and distance pieces 22 are placed between the separate plates forming the guides. An arrangement for gravity closed doors is also described.
Patent GB-723426-A (GB)
Title: Improvements in and relating to wrapping extruded briquettes and the like
IPC: B65B11/00
Filed: 1951-09-14
Abstract: 723,426. Packaging. GIBBONS, A. B. Sept. 5, 1952 [Sept. 14, 1951 ; May 13, 1952], Nos. 21614/51 and 12081/52. Class 94 (1). A rod A of lightly adhering fuel briquettes from an extruding machine 1 is wrapped longitudinally helically or circumferentially, with paper &c. while the rod is still under some longitudinal compression of the extruder. The wrapping bands or sheets are gummed together at their overlaps and may be also gummed at least at intervals to the rod A. The wrapped rod is then weakened by grooving and incising circumferentially at spaced lengths by cutters 29 on wheels 3 so that when it proceeds further to abut against an inclined deflector plate 4, it is bent and broken off and slides from a trough 5 to a baling box 6. Longitudinal wrapping. Four bands 10 of paper from radially spaced stationary reels 2 are laid along the rod A, each guided and pressed on the rod by a spring yielding pad 11 or 12. The top and bottom pads 12 supply glue to the top and bottom bands through glue supply pipes 21 to T-shaped glue passages 23 in adjustable spring yielding friction plates 18 pressing on the paper bands as each runs through a channel in a shoe 17. When the paper bands are first threaded through between the pressure pads 11, 12 and the rod A, the extruding advance of the rod draws the bands along with it under the pads 11, 12. The wrapped rod is weakened by peripheral incisions made through its wrapping by four arcuate serrated blades 29, Fig. 5, mounted in pairs on a diameter of each of rubber tyred wheels 3 in contact with and rotated by the travel of the rod. The wheels are geared together to synchronise the incisions so that a single circumference of the rod is incised. If one of the blades 29 of each wheel 3 is removed, the incisions are spaced at twice the distance so that a rod of twice the length will be finally broken off on being bent down and so broken off by the abutment deflector plate 4. Other lengths may be obtained by changing to other wheels 3. The exposed ends may be sealed by spray painting or dipping with e.g. a coating of bitumen. Helical wrapping is done by rotating a pair or spools of paper band around the rod, Figs. 7 and 8 (not shown) with unspecified modification of the glueing and pressure pads. Rectangular sheets from a pack may be wrapped circumferentially round each length of rod with some overlap at each end to allow for expansion of the rod after recovery from the end pressure of extrusion. Such sheets fed by a suction pick up, may be glued at their longitudinal overlap and may have their ends glued to the ends of the rods. The wrapped lengths may also be coated with bitumen &c.
Patent GB-316221-A (GB)
Title: Process for the manufacture of sheets of decorated plastic materials
IPC: B44C3/02
Filed: 1929-07-13
Abstract: 316,221. Soc. des Usines Chimiques Rh¶ne-Pou1enc. July 25, 1928, [Convention date]. Ornamenting. - Sticks of different colour and section of plastic material, especially cellulose ' derivatives such as cellulose acetate and nitrocellulose, are arranged in parallel, and, if desired, sheets are interposed between the rows of sticks, and pressed to form a b1ock, Fig. 2, which is then sliced in p1anes perpendicular to the sticks to form para11e1opipeds 1, 2 &c., each of which is turned on its respective axis A<1>, A<2> &c. through 90‹ each in the same direction or in alternate directions and pressed to form a b1ock, such as Fig. 4, which is then cut perpendicularly to the sticks into sheets. Alternatively, the initial block may be further s1iced in p1anes para11e1 to the sticks, and the resultant pieces are assembled in various ways, with the faces parallel to the sticks placed together, and pressed to form a block which is then cut perpendicularly to the sticks into sheets.