baber/WOPTO huggingface dataset:
Patent GB-288768-A (GB)
Title: An improved method of mounting and positioning type wheels of dating, numbering and like devices
IPC: B41K3/08
Filed: 1927-02-12
Abstract: 288,768. Zang, M. Feb. 12, 1927. Index type-wheel machines; aligning for impression.-In dating, numbering, and like machines having a type-drum consisting of a number of adjustable type-rings mounted on a cylindrical support provided with spring-urged aligning-members, the aligning-members project into an axial bore in the support and engage a curved leaf-spring in the bore. In the typedrum shown in Figs. 2 and 3, type-rings a - - a<4> mounted on a support b are held in adjusted position by means of balls g which are pressed into engagement with recesses h in the type-rings by means of a curved leaf-spring d arranged in an eccentric bore c in the support. The spring is secured at one edge, preferably by means of projections f, and the free edge is formed with slits i. For locking the type-rings, the bore may receive a semicircular bar which can be turned to jam the balls; or an axially movable locking- bar may be employed. The type-drum is secured to the machine by means of screws which enter holes j.
Patent GB-758950-A (GB)
Title: Improvements in or relating to indexing means for rotary electric switches
Inventor: PUGH ERNEST JOHN
IPC: H01H19/11
Filed: 1954-02-11
Abstract: 758,950. Mechanical switches, without quick action. PLESSEY CO., Ltd. Feb. 11, 1955 [Feb. 11; 1954], No. 4030/54. Class 38(5) A rotary switch has a stationary index plate formed with a series of projections or depressions and associated with a separate stationary stop plate adapted to limit the rotor movement. As shown, arms 10 on a spring member 9 co-operate with the projections 2 in plate 1. A spider 4 has arms 5 which may be bent over at 7 and passed through holes 3 in the plate 1 so as to provide stops co-operating with a projection 12 on member 9. A tongue 6 on the spider 4 locates the mechanism relative to a support (not shown).
Patent GB-565098-A (GB)
Title: Improvements in or relating to vertical sliding sash windows
IPC: E05D13/00
Filed: 1943-03-12
Abstract: 565,098. Windows. POWER, R. F. March 12, 1943, No. 4042. [Class 20 (iii)] In a sliding sash window a cord 15 or the like is secured to each upper corner of the top sash 11 and after passing round a fixed pulley 13 passes round a pulley 14 at the bottom corners of the lower sash 12, one cord passing on to a drum 16 and the other in the opposite direction on to a coaxial drum 17. The drums are rotatable in unison by a handle 19 mounted on the drum shaft which is slidable in the lower frame member of the lower sash. A catch 24 for the lower sash is provided whereby when the catch is in operative position rotation of the drums effects movement of -the upper sash only. When the catch is released and the drums rotated, the lower sash alone is moved. To move both sashes simultaneously, the catch is released and the lower window is moved by hand, an equal and opposite movement being thereby imparted to the upper sash.
Patent GB-569369-A (GB)
Title: Improvements in and relating to a progressive variable-speed gear-box
IPC: F16H29/16
Filed: 1943-03-15
Abstract: 569,369. Variable - speed gearing. DESSONNAZ, G. March 15, 1943, No. 4211. Convention date, March 12, 1942. [Class 80 (ii)] Coaxial driving and driven shafts 1, 4, mounted in a casing 3, each carry six hubs 6, coupled by rods 7 to the inner members 8 of one-way roller clutches, the outer members 10 of which are fixed to a drum 11. The latter is mounted by bearings 12, 12<1> on arms 13, 13<1> fixed together by a tube 14 which pivoted at 16, 16<1> to the casing 3. Each rod 7 is out of phase with the others. When the shafts 1, 4 are concentric with the drum 11 there is a one-to-one drive. Speed changes are effected by angular-movement of the arms 13, 13<1> to move the drum into an eccentric position relative to the shafts 1, 4. As applied to a motor vehicle the driving shaft 1 and driven shaft 4 have gears 23, 20, engaging gears 24, 21, connected respectively to the bevel gear 25 and planet carrier 22 of a differential, the final driven shaft 28 having a bevel 27. Thus the bevel 25 is driven at the speed of the driving shaft 1, the speed of the planet carrier 25 can be varied by the ratchet change-speed gear, to give any desired speed to the shaft 28. A one-way clutch 29 may be positioned between the bevel 25 and the planet carrier 22.
Patent GB-660155-A (GB)
Title: Method for improving quality of gasoline
IPC: C10G45/34
Filed: 1949-02-16
Abstract: A petroleum fraction boiling in the gasoline boiling range is brought into contact in admixture with hydrogen at a temperature between 400 DEG  and 600 DEG F. and at a pressure of 50-300 p.s.i. with a catalyst comprising nickel and/or tungsten sulphides at a liquid feed rate of between 6 and 25 volumes of feed per volume of catalyst per hour.  Between 50 and 2,500 cubic feet of hydrogen per barrel of petroleum fraction may be used.  Catalytically cracked or thermally cracked naphtha in the gasoline boiling range may be treated.  From 5 to 50 per cent of the treated fraction may be blended with naptha obtained from catalytic conversion processes such as alkylation, polymerization, hydroforming, isomerization, polymerization and hydrogenation, or from distillation of crude petroleum.  The treated fraction may also be blended with paraffinic hydrocarbons.
Patent GB-547242-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: C08L95/00
Filed: 1941-03-31
Abstract: 547,242. Bituminous emulsions. STANDARD OIL DEVELOPMENT CO. March 31, 1941, No. 4284. Convention date, March 29, 1940. [Class 1 (i)] Aqueous emulsions of bitumen which form dry films more resistant to water when applied to an aggregate contain compounds of aluminium, tin, boron, chromium, zinc, molybdenum or vanadium, e.g. sodium aluminate, in conjunction with an aliphatic amine having more than 11 carbon atoms in a straight chain, e.g., n-heptadecylamine, or a substituted amine having at least 10 carbon atoms in a straight chain, the terminal carbon atom being attached to a carbon atom in the ring of a carbocyclic compound or a nitrogen containing heterocyclic compound.
Patent GB-362766-A (GB)
Title: Improved road machine tool bars, and method of making the same
IPC: B21H7/00
Filed: 1931-02-11
Abstract: 362,766. Road-grading machines. CAMERON, H. S., New Glasgow, Nova Scotia, Canada. Feb. 11, 1931, No. 4285. [Class 107.] A blade 26 for a roadgrading machine is formed by rolling, with a curved back 27 which merges into the bevels forming the cutting edges, as shown in the Figure.
Patent GB-469723-A (GB)
Title: Improved glass tank furnace and process of putting into use the same
IPC: C03B5/43
Filed: 1937-02-15
Abstract: 469,723. Glass furnaces. CORHART REFRACTORIES CO. Feb. 15, 1937, No. 4500. Convention date, March 25, 1936. [Class 51 (ii)] Hearths.-The joints between the blocks A forming the floor of a glass tank are filled with a freely flowing granular refractory which will sinter only at a temperature higher than that to which the furnace is raised during the heating-up before bringing it into use. The filling-material should be inert to and heavier than molten glass, and may be of the same material as the blocks ground to pass a 60 mesh screen. The temperature may be raised to 1300‹ C. during the heating-up and afterwards to 1550‹ C., either before or after the charging of the first batch. The blocks A are laid on granular refractory B spread on a floor C formed of overlapping tiles and having on its under side an insulating layer D. Specification 265,847, [Class 22], is referred to.
Patent GB-1527052-A (GB)
Title: Method for piecing thread in an open-end spinning unit and an open-end spinning machine
IPC: D01H4/50
Filed: 1976-02-05
Abstract: 1527052 Openers F STAHLECKER and H STAHLECKER 5 Feb 1976 [19 Feb 1975] 4584/76 Heading D1N The leading end of a sliver in the form of a fibre beard being offered to an opener 20 by a feed means 19 is shortened prior to the sliver being operated to deposit a ring of shortened fibres in the rotor of an open end spinning unit. As shown, prior to the re-commencement of spinning after a thread break, a compressed air jet 60 blows the leading end of the sliver against opener roller 20 so as to shorten it. The leading end of the sliver may be blown against a blade (63) to cut it, see Fig. 3 not shown. The shortening of the sliver may be effected by a travelling servicing unit performing a piecing operation, the leading end of the sliver being shortened as the spinning rotor runs up to its normal operating speed.
Patent GB-1427887-A (GB)
Title: Peroxydicarbonates
IPC: C08F14/00
Filed: 1974-01-31
Abstract: 1427887 Peroxydicarbonates AKZO NV 31 Jan 1974 [9 March 1973] 04592/74 Heading C2C The invention comprises a peroxydicarbonate of the formula wherein R represents an alkyl group having 1-5 C-atoms, a halogen atom or a cyano group and n= 1 or 2 and a process for the preparation thereof which comprises reacting a chloroformate of the general formula with an excess of hydrogen peroxide. The chloroformate is prepared by reacting an appropriately substituted benzyl alcohol with phosgene in a dry solvent.
Patent GB-889179-A (GB)
Title: Improvements in or relating to electrically driven bending apparatus
IPC: B21D11/12
Filed: 1960-02-11
Abstract: 889,179. Control of A.C, motors; controllers. SOC. GENERALE DE MATERIEL D'ENTREPRENEURS. Feb. 11, 1960 [July 28, 1959], No. 4797/60. Class 38 (3). [Also in Group XXII] Apparatus for bending a bar 2 round a roller 3 comprises a rotatable platform 4 carrying a bending-pin 5 in one of several holes 6 at various distances from the centre of the platform. An abutment pin 9 is fixed to the top of the machine for restraining movement of the bar. The platform is turned in a forward direction when switch 15 is closed to energize relay 12 in circuit with motor 7, the coil 14 of relay 12 being in series with interlock contacts 16 on reverse relay 33. The relay 12 has holding contacts 17 and interlock contacts 37. When the platform turns, it drives a shaft with a number of discs carrying abutments for operating switches 34, 40 and 49 the discs being driven through releasable clutches for adjusting the angular positions of the discs on the shaft in order to predetermine the angular positions of the abutments relative to the platform over a continuous range, Fig. 2 (not shown). At the end of a bending operation, switch 34 is displaced to engage contact 35 whereby relay 12 is deenergized and relay 33 is energized for reverse operation of the motor. At the end of the return motion, switch 40 is opened to deenergize relay 33 and stop the platform in its initial position. The machine may be adapted for bending bars through different angles by the provision of a further control switch 41 and auxiliary relay 43. Closure of switch 41 energizes relays 43 and 12, the latter remaining energized when switch 34 is actuated because the shunt contacts 47 are closed. The forward movement continues until switch 49 is displaced to reverse the motor, return movement then being effected until switch 40 is actuated. The switch 49 is shunted by contacts 48 when the machine is under the control of switch 15. When the bars to be bent are introduced into the machine from the left instead of from the right, the abutment 9 is re-positioned, and the platform 4 is rotated by half a turn whilst the discs carrying the switch-operating abutments are prevented from rotating. This rotation is effected by switch 52 which closes contacts 53 to energize relay 12. The original situation is re-established by operating switch 54 to energize relay 33.
Patent GB-306003-A (GB)
Title: Improvements in or relating to electric circuit coupling devices suitable for use with thermionic valves and the like
IPC: H03J3/06
Filed: 1929-02-13
Abstract: 306,003. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Roberts, W. van B.). Feb. 13, 1928, [Convention date]. Grant allowed. Thermionic amplifiers.-Energy is transferred from one circuit to another, for example from the plate circuit of one valve to the grid circuit of a succeeding valve, by a coupling arrangement which is equally effective at all frequencies within a given tuning range. As shown in Fig. 1 the plate circuit of the valve 1 includes an inductance coil L1, which has a condenser C and coil L2 connected across it. The natural frequency of the closed circuit 3 is lower than any frequency to be received. A series-resonant tuning-circuit 5, 6 is connected across the coil L2, and the output voltage for the succeeding grid 2 is taken across the condenser 5 or the coil 6, both of which are of high reactance. It is shown bv analysis in the Specification that for a given plate current in the valve, the voltage across the coil L2 (in the absence of the shunt 5, 6) can be expressed as a ratio of two expressions each involving the values of L1, L2, C and the frequency. By suitably choosing L1, L2, and C, the ratio can be made substantially uniform over a given range of frequency. Tuning can be effected by varying either the inductance 6. or the capacity 5, or both. The output to the grid of the next valve may include a grid leak and condenser. In a modification, shown in Fig. 2, the closed circuit 3 comprises two condensers C1, C2 and a single coil L, plate voltage being fed through a separate choke coil 4. Specification 273,639 is referred to.
Patent GB-286688-A (GB)
Title: Process for the manufacture of new di-halogen-acylated diphenylethers and of highly active therapeutic substances therefrom
IPC: C07C45/46
Filed: 1928-02-16
Abstract: 286,688. Schering-Kahlbaum Akt.- Ges., (formerly Chemische Fabrik auf Actien, vorm. E. Schering). March 9, 1927, [Convention date]. Diphenylether derivatives.-Di-#-halogenacyldiphenylethers and their oxy or alkoxy derivatives are prepared by treating diphenylether or an alkoxy derivative thereof with a halogenated acyl halide. The oxy derivatives are obtained bv saponification, which may be spontaneous, of the alkoxy derivatives. By replacement of the #- halogen atoms with amino or substituted amino groups, products possessing therapeutic properties are produced. According to the examples, (1) p-dichloracetyl- . or dibromacetyl-diphenylether results when chlor- or brom-acetyl chloride is dropped into diphenylether containing aluminium chloride or bromide and the products decomposed with ice; (2) p-dichloracetyl-o-methoxy-diphenylether is prepared from o-methoxy-diphenylether using chloracetyl chloride in the presence of aluminium chloride; by saponification the oxy compound is obtained, and this, by treatment with methylamine, yields the corresponding amine; (3) p-methoxy-diphenylether is treated with chloracetyl chloride in the presence of aluminium chloride and decomposed with ice to precipitate dichloracetyl-p-oxy-diphenyl-ether.
Patent GB-793135-A (GB)
Title: Improvements in or relating to the production of aromatic hydrocarbons
IPC: C07C5/44
Filed: 1956-02-17
Abstract: Aromatic hydrocarbons are prepared from hydrocarbons containing a chain of at least six carbon atoms of which not more than two are in a single ring and which contains no quaternary carbon atom, by heating above 300 DEG  C. with iodine such that the mol. ratio of iodine to hydrocarbon is at least 0.1, so as to effect a C- to -H bond cleavage in the presence of free iodine, cooling the reaction product and recovering the aromatic hydrocarbon. Preferred temperatures are up to 600 DEG  C., particularly 425-525 DEG  C.  The mol. ratio of iodine to hydrocarbon may be 0.1 to 8 and is preferably such that there is present at least 0.1 chemical equivalent per hydrogen atom to be removed and preferably 0.2 to 0.9 equivalent. Vapour phase reaction is preferred at atmospheric pressure although sub-atmospheric and superatmospheric up to 70 atmospheres can be used.  The hydrocarbon may be acyclic aliphatic, preferably with substituent groups no greater than methyl, decanes and higher giving polycyclic compounds, or aralkyl hydrocarbons.  In an example, n-hexane is heated with varying amounts of iodine at atmospheric pressure and temperatures of 497-527 DEG  C. for times of 0.5-0.8 minutes to give benzene.
Patent GB-131019-A (GB)
Title: Improvements in Metal Spars, Girders, Longerons and like Structural Members of Aircraft.
Inventor: MOONEY DERMOT JOSEPH
IPC: B64C3/18
Filed: 1918-03-21
Abstract: 131,019. Mooney, D. J. March 21, 1918. Framework.-Spars, girders, longerons, and like structural members of aircraft are formed from a pair of thin metal channel members having four-sided flanges. The channel members may be arranged in contact as shown in Fig. 7 and stiffened by tubes or channel-pieces i, or the members may be separated by wood or metal distance-pieces. In the construction shown in Fig. 17, the channel members are reversed, the flanges being secured to a box-like distance-member k. The web portions are pierced to reduce weight, and the flanges may be connected by strips longitudinally corrugated or of channel form. Longitudinal stiffening-pieces may be arranged diagonally in the flanges. Specification 8522/12 is referred to.
Patent GB-881041-A (GB)
Title: Improvements in or relating to electrical apparatus
Inventor: WILLIAMS GRAHAM
IPC: H02P25/02
Filed: 1957-02-14
Abstract: 881,041. Synchronism indicators. SMITH & SONS (ENGLAND) Ltd., S. Feb. 14, 1958 [Feb. 14, 1957], No. 5069/57. Class 37. In a device for testing for synchronism of a synchronous motor 7 with the energizing voltage source 1, 2, 3, the source is momentarily disconnected from the motor and fed to a phasesensitive device 12 for comparison with a back E.M.F. developed in the stator winding of the motor, an indication being provided when the phase relationship between the source and the back E.M.F. corresponds to correct synchronization of the motor. Capacitor 38 is charged by low voltage source 31, 32 and discharges through relay winding A on actuation of the double pole synchronism test switch 37, 39; whereby terminals 1, 2 of the energizing voltage source are momentarily disconnected from the motor windings, and the winding terminal 5 is connected through audio-frequency amplifier 9 to phase comparator 12 so that the phase of the back E.M.F. developed across the motor windings may be compared with that of the energizing source from terminals 1 and 3. The output from comparator 12 is fed to D.C. amplifier 25; the amplifiers 9, 25 being such that the output from amplifier 25 is sufficient to energize relay coil B when synchronism of the motor 7 is achieved, this being accompanied by a corresponding reduction in the phase lag of the back E.M.F. relative to the source voltage. Energization of relay B causes relay coil C to be energized through contact B1 and subsequently through the stick circuit provided by contact C1, and the synchronism indicator lamp 43 is lit through contact C2 and contact 39 of the synchronism test switch.
Patent GB-535916-A (GB)
Title: Improvements in sanitary napkins
IPC: A61F13/15
Filed: 1940-03-19
Abstract: 535,916. Sanitary napkins. BURGESS, A. F. (International Cellucotton Products Co.). March 19, 1940, No: 5106. [Class 81 (ii)] A sanitary napkin includes as part of the absorbent filler a pad 12 composed of paper shreds, in a felted layer, which have been locally compressed so as to increase their capillary effect along desired lines. The pad is preferably covered by sheets of tissue paper 19, 21 and is enclosed with other material in a gauze cover B. The local compression may be effected by passing the layer from a feeding device between rolls 14, 15 having opposed teeth 16.
Patent GB-1076333-A (GB)
Title: Hardening of concrete in building construction
IPC: H05B3/48
Filed: 1965-02-05
Abstract: Concrete used to join two prefabricated panels or like members is hardened by electric heating means which is removed once the concrete has hardened.  The two members to be joined may be so positioned as to provide between them a cavity in which may be placed an element defining a chamber for the heating means, concrete being introduced around but not in said element.
Patent GB-798723-A (GB)
Title: Improvements in drive means for conveyors
IPC: B65G23/14
Filed: 1955-02-21
Abstract: 798,723. Endless conveyer driving gear; rope railways. GREBE, K. Feb. 21, 1955 [Feb. 19, 1954], No. 5166/55. Classes 78 (1) and 104 (2). In an endless belt conveyer or a conveyer including a series of travelling belt sections wherein the belt or each belt section incorporates a chain which is engaged by dogs on an endless driving chain and wherein the dog pitch is less than the conveyer chain pitch, the driving chain co-operates with guide tracks having curved entry ends arranged adjacent both runs and each pivoted centrally whereby they are adapted to be locked in either of two positions in which the driving chain is guided in an inclined path with respect to the path of the conveyer belt to minimize speed fluctuations of the belt in either direction of drive. In one form, Fig. 2, the guide tracks 11, 12 are pivoted at 15. The dogs 8 rise up the curved entry end to a peak where they engage the abutments 9 of the belt, and beyond which the dogs are gradually withdrawn. Oppositely acting free wheels 5 are disposed on opposite sides of the drive sprocket 3, abutments on the driven parts of which engage respective levers 19 connected to a bell-crank 17, the arms of which are linked respectively with the tracks 11, 12. According to the direction of rotation of sprocket 3 one or other lever 19 is engaged displacing tracks 11, 12 into positions with their leading ends raised irrespective of which direction of rotation is used. In a second form, Fig. 4, for conveying on an incline, tracks 11, 12 are inclined in opposite directions with respect to the upper and lower runs of the driving chains whereby the dogs on the lower run can effectively act as a brake for the lower run of the conveyer belt. They are held in position at the appropriate inclinations to suit the direction of movement of the conveyer belt by links 20, 21 of different length. In a further form, Fig. 5, the tracks 11, 12 are pivoted at points 15<SP>1</SP>, 15<SP>11</SP> adjacent the axis of idler sprocket 2 whereby only one run of the dogs 8 engages the abutments on the belt, the other run being disengaged. Upon reversal of the drive the other run of the dogs is engaged with the abutments on the other run of the belt, the first run being disengaged, owing to the displacement of the tracks 11, 12. Dogs 8 may be axially displaceable and resiliently held in extended position by springs. Specification 749,730 is referred to.
Patent GB-1256450-A (GB)
Title: Improvements in and relating to fission chambers
Inventor: GUERY MARCEL
IPC: H01J47/12
Filed: 1970-02-03
Abstract: 1,256,450. Ionization chambers. COMMISSARIAT A L'ENERGIE ATOMIQUE. 3 Feb., 1970 [3 Feb., 1969], No. 5176/70. Heading H1D. In a pulse type fission chamber comprising a casing 1 which serves as a cathode, an anode 3 within the casing, electric wiring 8 connected to the anode, and hermetic sealing means 4, 5, 6 providing a hermetic seal between the casing and the wiring, the anode 3 is made of Ti and the sealing means comprises an alumina insulator 4 and is welded using a Ag-Cu eutectic to the casing and the wiring. The anode 3 is locked by a screw 9 on to a threaded portion 7 of a Ti member 5 welded at 12 to the insulator 4 and at 13 to a flexible stainless-steel wire 8 brazed into a hollow terminal 10. A collar 6 of Ti is welded at 14 to the insulator 4 and at 15 to the cathode 1 which is made of Ti or any metal weldable thereto, e.g. Zr, Nb, or Mo, and is closed by a plug 2 of similar metal. The chamber may be slid into a sleeve having resilient members which grip the cathode 1 and terminal 10. In an alternative embodiment (Fig. 2, not shown), designed for operation at high temperatures, e.g. 450‹ C., the cathode 1 is welded directly to the insulator 4. A cap is welded to one end of the insulator and to the wire 8 which is located in the insulator 4 by further insulators. Fissile material, e.g. 90% enriched uranium, is deposited on the anode and/or cathode. The chamber is degassed by heating before use, when the degassed Ti acts as a getter to absorb any traces of oxygen or water vapour in the filling, which may be argon.