baber/WOPTO huggingface dataset:
Patent GB-792332-A (GB)
Title: Improvements in operation controlling mechanism for typewriters or like machines
IPC: B41J29/387
Filed: 1955-12-20
Abstract: 792.332. Typewriters. ROYAL McBEE CORPORATION. Dec. 20, 1955 [Jan. 26, 1955], No. 36535/55. Class 100(4) A typewriter or like machine has electrically powered operating means 19, means including a normally open switch S for connecting the operating means to a power supply, means 67 biasing the switch to its normally open position, an electromagnet 74 which when energized maintains the switch in its closed position, means connecting the electromagnet in circuit with the power supply through the switch, and means for closing the switch for simultaneously connecting the operating means to the supply and energizing the electromagnet, the biasing means being automatically operated to open the switch in response to deenergizing of the electromagnet. When the lever 23 of a control device E is in the upper " off " position shown, pin 28 is located in the rear end of slot 29 of link 30 connected to the hinge of hood H so that the hood is free for opening and link 72 positions lever 41 so that the latter holds the key locking blade 34 in engagement with recesses 37a to lock key levers 12 against depression, and lever 69, which engages in a slot in plate 59, so that spring 67 rocks actuator 65 to raise the attached plate 59 and upper contact 54a so that switch S is open. When lever 23 is moved downwardly to the "on" position, pin 28 is moved to the front end of slot 29, so that opening of the hood will move lever 23 to its "off" position and so return the machine to the non-operative condition, lever 41 is rocked counterclockwise via link 72 and frees blade 34 which is then rocked by spring 38 so as to free the key levers, and lever 69 is rocked clockwise moving plate 59 downwardly to bring contacts 54a, 55a into engagement and so close switch S. Closing of of switch S completes the circuit to motor 19 which through a variable speed transmission drives a toothed snatch roll which in turn drives the type bars, carriage drive &c., and completes the circuit of the electromagnet 74 which then pulls the actuator downwardly and so retains switch S in closed condition. The electromagnet also lessens the effort required to move lever 23, blade 34 &c. Blade 34 is also connected via ear 34a to a carriage operated line lock mechanism so that the blade is moved to key blocking position when the carriage reaches the end of a line. The different positions of lever 23 are indicated by two differently coloured areas of a plate visible through a window in the frame. The parts are normally returned by movement of lever 23 to the "off" position, the movement being aided by spring 67, but if the power delivery is interrupted the electromagnet is de-energized and spring 67 returns the parts to normal position.
Patent GB-919025-A (GB)
Title: Improvements in teaching apparatus
IPC: G09B19/02
Filed: 1958-11-14
Abstract: 919,025. Educational appliances. DIENES, Z. P. Nov. 16, 1959 [Nov. 14, 1958], No. 36768/58. Class 146 (2). Apparatus for teaching arithmetic comprises a set of blocks in which there are a plurality of each of four kinds. The kinds of blocks consist of a unit cube 10, a strip 11 of two unit cubes length, a square 12 one unit cube in height and of sides equal in length to the strip 11, and a large cube 13 having sides equal in length to the strip 11. The larger blocks on their larger sides have marking lines 14 such as grooves or ink lines indicating unit cube lengths. The set shown has volumes illustrating a geometrical progression to the power of 2 while in another example the ratio of the strip length to the small cube side is 3, thus illustrating a progression to the power of 3. A set may be made for other powers and a tray may be provided marked in columns and rows to form squares equal in size to the large cube.
Patent GB-840460-A (GB)
Title: Stabilized hydrocarbon polymeric materials
IPC: C08K3/04
Filed: 1957-11-26
Abstract: A composition comprises a polymer of a mono-olefin, carbon particles and, either a compound R-S-S-R1, in which R and R1 are aliphatic radicals, or an aliphatic dithiol containing more than one disulphide group, e.g. the polymerization product of 1,10-decamethylene dithiol-such as the trimer.  Many disulphides are listed, the one used in the examples being dodecyl disulphide.  The polymer (or mixture thereof) may be derived from ethylene, propylene, butene, 3-methyl pentene-1, hexene or mixtures of these monomers, and may contain hydrogen atoms attached to tertiary carbon which are in ordered or random fashion.  An accelerated ageing of particular compositions in the presence of oxygen is described.  The products find application in cable sheathing and wire insulation.
Patent GB-620526-A (GB)
Title: Improvements in and relating to vehicle bodies
IPC: B62D25/02
Filed: 1946-12-16
Abstract: 620,526. Road vehicles. BRITISH LIGHT STEEL PRESSINGS, Ltd., and WHITE, E. S. Dec. 16, 1946, No. 36991. [Class 108 (i)] In an automobile body side assembly formed from separate parts including sill 5, cant rail 4, front and central door pillars 1, 2, and rear quarter 3, the sill 5 and cant rail 4 are each formed with one or more integral projecting stub portions 6, 7, 8, at positions corresponding to the desired location of the extremities of the front or central door pillars 1, 2. The sill 5 may also be formed with a stub portion 9 to register with the rear quarter 3.
Patent GB-367954-A (GB)
Title: Improvements relating to feeding devices for animals
IPC: A01K5/01
Filed: 1930-12-09
Abstract: 367,954. Feeding appliances for animals. THOMAS, H. B., Grangeside, Pinsley Road, and ALEXANDER & DUNCAN, Ltd., Lion Works, both in Leominster, Hertfordshire. Dec. 9, 1930, No. 37064. [Class 5 (ii).] A feeding trough a for animals is adjustably supported bv means of a vertical plate b (or plates) secured to the back of the trough and adapted to lie between the flanges of an upright support d (or supports) of channel section, said plate being attached by a screw, peg, or other fastening g, to a retaining guide e secured transversely across the front of the support d. A series of holes c is provided in the plate b for reception of the fastening g.
Patent GB-1193268-A (GB)
Title: Dispensing Closure
Inventor: JONES PHILIP
IPC: B65D47/28
Filed: 1966-08-18
Abstract: 1,193,268. Container closures. U.G. KEY PLASTICS Ltd. 13 Sept., 1967 [18 Aug., 1966], No. 37100/66. Heading B8T. A plastics dispensing closure carries in a recess a slide which in one position closes an outflow hole through the closure and in another opens the outflow hole, the initial opening movement of the slide breaking at least one projection extending from the closure. The motion of the slide may be rotary or linear. As shown, a slide 4, Fig. 1, of a hard plastics, has a sharp edge 5 and lies in an undercut groove 3, Fig. 3, across the top of a closure 1. The groove 3 has rails 7 supporting the slide 4, and the closure 1 is of a relatively soft plastics. Initially, a projection 6 on the closure lies against the sharp edge 5 of the slide 4. When the slide 4 is moved rightwards of Fig. 1, the projection 6 is broken-off, and a hole (8), Fig. 2 (not shown), beneath the slide, is uncovered. In one modification, the projection (13), Fig. 5 (not shown), initially closes the hole, moving the slide to break-off the projection opening the hole. In another modification, the projection (25), Fig. 6 (not shown), is on the underside of the slide and initially extends into the hole (23) through the top of the closure. The closure may alternatively be in the form of a panel welded to its container.
Patent GB-824172-A (GB)
Title: Improvements in and relating to electric rectifier arrangements
Inventor: LOWTHER ROY
IPC: H02H7/12
Filed: 1955-12-28
Abstract: 824,172. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO. Ltd. March 26, 1957 [Dec. 28, 1955], No. 37123/55. Class 38 (5). In a rectifying equipment having a number of parallel circuits 4, 5, means for detecting an open-circuit, e.g. due to a blown fuse 2, comprise relay means 11, 13 connected between star points 8, 12 provided by impedances 7, 7a and a further point normally at the same potential as the star points. The further point may be the neutral connection of a supply transformer or be provided by further impedances star-connected to the supply bus-bars. The relay means may comprise individual relays as shown, but a common relay may be connected to two or more star points through half-wave rectifiers, Fig. 2 (not shown). In the latter case, small neon or similar discharge lamps may be connected in parallel with the half-wave rectifiers to indicate the defective circuit, or a switching arrangement may be provided to connect the common relay to the individual star points for testing purposes. Fig. 3 (not shown), illustrates the application of the invention to groups of three-phase bridgeconnected semi-conductor rectifiers. The impedances may comprise high resistances or small capacitances.
Patent GB-1481825-A (GB)
Title: Automatic telephone exchange
IPC: H04Q3/54
Filed: 1974-08-23
Abstract: 1481825 Automatic exchange systems TELEFONAKTIEBOLAGET L M ERICSSON 23 Aug 1974 [23 Aug 1973] 37237/74 Heading H4K An automatic telecommunication exchange including a subscriber switching stage SL and a group selecting stage GV each having its own marker or markers SLM and GVM, each marker having a marking section and an analysis/route selection section, is augmented by a program controlled register arrangement REG which takes over or performs the main registering and route selection functions which may have been performed previously by existing equipment and provides abbreviated dialling and class of service facilities. As shown when a subscriber TF goes off-hook the loop closure is detected by line unit LR which calls in a marker SLM which identifies the calling line, effects a connection to a free link circuit SR and calls in a marker RSM associated with a register finder which effects a link between SR and interface unit RSG. RSE transmits a signal via RS, RSM, and SLM to an interface unit SLG to identify the marker SLM as more than one may be provided. A confirmation signal is returned over the same path to RSG which calls in the control unit REP. REP obtains the identity of the caller from SLG and accesses the class of service store AKM. LR transmits a test signal to RSG over the set up path and a returned acknowledgement signal causes LR to release with consequential release of SLM and RSM. Depending on the class of the calling line interface unit RSG prepares for the reception of dial pulse or multi-frequency signals. Also depending on the identity of the calling line or the use of a prefix digit or additional key on the calling set an abbreviated dialling translator KNM may be taken into use. The class of the called subscriber is read out and if the call can be permitted a call is made to the group selector stage GV via link circuit SR. A marker GVR responds and is identified in a manner similar to marker SLR and an interface unit GVG instructs marker GVM to complete a connection to outgoing repeater FVR or in the case of a local call to the D stage of SL. GVM and GVG are then released. The D stage input taken into use is identified by SLM which again signals to SLG and is itself identified. The remaining digits of the called subscriber number are then transmitted from REP to SLM which searches for a free way through the subscriber switching stage SL to the called line and informs REP of the subscribers busy/free state. If REP find that a through connection can be made, a connect order is transmitted to SLM which effects the connection and releases; REP sends out a first ring signal and ring back tone to the called and calling subscribers and orders link circuit SR to take over the ringing and supervision of the call. The switches are crossbars and a duplicate control unit DVP and its typewriter input SM are mentioned.
Patent GB-922064-A (GB)
Title: Improvements in and relating to hob plates
Inventor: HICKS ANTHONY MICHAEL
IPC: F24C15/10
Filed: 1960-10-29
Abstract: 922,064. Hob plates. SIMPLEX ELECTRIC CO. Ltd. Oct. 26, 1961 [Oct. 29, 1960], No. 37246/60. Class 126. A hob plate comprises a metal central portion 1 and a metal surround portion 8 which are separated by low thermally conducting and heat-resistant material 10. The central portion 1 is a sheet metal pressing supporting electric hot plates 2 and formed with spillage channels 6. A flat marginal portion 3 is embraced by a U- section gasket 10 of, for example, synthetic rubber. The hob plate surround portion 8 comprises a horizontal portion 8 to which bolts 5 are welded and inner and outer vertical portions 12 and 13 shielding the gasket. The bolts 5 extend through the limbs of the gasket, the central hob portion and a laminated work top 11 with a thermo-setting resin surface. Washers and nuts 18 clamp the assembly together. An L-shaped metal plate 15 is clamped between the gasket and work top to shield the edge 14 of the work top and the lower ends of the bolts from any heat emanating from the underside of the central hob portion 1. The bolt holes 4 and 19 in the central hob portion and in the heat shield are sufficiently larger than the bolts to avoid thermally conducting contacts. In a modification, Fig. 3 (not shown), the work top and heat shield are omitted and the outer hob portion forms the main assembly support.
Patent GB-795644-A (GB)
Title: A reflection device for bicycles
IPC: B62J6/20
Filed: 1956-12-06
Abstract: 795,644. Reflex reflectors. NIELSEN. A. G. Dec. 6, 1956 [Dec. 7, 1955], No. 37263/56. Class 3(2) A reflector 1 carried in a frame 3. 4 is secured to two crossing spokes 12, 13 of a bicycle wheel by the two lugs 5, 6 engaging one spoke and the two branches 9, 10 engaging the other spoke. A nut 7 and bolt 8 clamp the assembly together. In a modification the holes through which the bolt passes may be elongated and in a further modification both the branches 9, 10 are accommodated between the lugs 5, 6.
Patent GB-886544-A (GB)
Title: Improvements in or relating to film transport systems for sound recording and reproducing mechanisms
IPC: G11B15/34
Filed: 1960-10-31
Abstract: 886,544. Feeding kinematograph sound films. KODAK Ltd. Oct. 31, 1960 [Nov. 2, 1959], No. 37318/60. Class 40 (2). The sound track of a kinematograph film 6 is drawn over a sound drum 11 by a driven sprocket 13, guide rollers 21, 22, spaced apart and from the sound drum by the thickness of the film, supporting the bight of film between the drum and the immediate vicinity of the sprocket continuously. The roller 21 is braked by friction washers 31, whose effect is adjusted by a clamp screw 32 such that the reverse torque exerted by the roller 21 at all times exceeds the forward torque exerted by the take-up reel 5, with the result that the sprocket 13 always drives the film unidirectionally reducing flutter. To reduce wow the drum 11 is coupled in known manner to a flywheel 19.
Patent GB-852691-A (GB)
Title: Improvements in and relating to the polymerisation of olefines
Inventor: REED HUGH WILMA BOULTON
IPC: C08F10/00
Filed: 1957-12-02
Abstract: Polymers which are solid at normal temperatures are produced by contacting an olefin (e.g. ethylene, propylene or other a -olefins) with a catalyst comprising a Group I-III non-transition metal organo-compound (e.g. AlEt3) mixed with TiCl3, the latter having been subjected in the dry state to attrition by impact pressure and/or shear forces, particularly by ball-milling.  Preferred particle size ranges of the TiCl3 are specified.  The polymerization is preferably effected in a diluent which may be, e.g. an inert liquid hydrocarbon or the olefine monomer in the liquid phase.  The polymer may be isolated using methanol, or petroleum ether containing optionally AlBr3 and nonanol.  Comparative examples wherein the TiCl3 had been ground in presence of petroleum ether are also described.ALSO:A polymerization catalyst comprises an organo-compound of a Group I - III non-transition metal mixed with TiCl3, the latter having been subjected in the dry state to attrition by impact pressure and/or shear forces, particularly by ball milling; use of an impact mill, an edge runner mill, a roller crusher and ultrasonic comminution techniques is also mentioned.  The organo-compound may be derived, e.g. from Al, Be, Zn, Mg, Li or Na and suitable hydrocarbon radicals are alkyl, alkenyl, alkynyl, cycloalkyl, aryl and aralkyl, but particularly up to C5 alkyl radicals, e.g. Me, Et, Pr and Bu; aluminium alkyls (particularly AlEt3 in the examples) are preferred, but also referred to are alkali metal alkyls and aryls, Mg and Zn alkyls, Al alkyl halides and hydrides, and alkali metal-Al complex alkyls.  Petroleum ether (b.p. 60-80 DEG C.) is the preferred diluent, but olefine monomer and paraffin, alicyclic and aromatic hydrocarbons are also mentioned.  It is preferred that the TiCl3 should have a particle size in the range 0.5-200m  and particularly that at least 50% wt. should have a particle size greater than 10m .
Patent GB-1131330-A (GB)
Title: A steam boiler and turbine installation
IPC: F01K13/02
Filed: 1967-08-17
Abstract: 1,131,330. Controlling steam boilers; regulating boiler furnaces. SIEMENS A.G. 17 Aug., 1967 [17 Aug., 1966], No. 37880/67. Headings F4A and F4B. [Also in Divisions F1 and G3] In an installation comprising a boiler supplying steam through line 3 to a condensing steam turbine 1, the heat output of the boiler furnace and/or the boiler feedwater supply and/or the turbine steam inlet pressure are/is influenced by a control signal representing where Qi is the actual rate of steam flow to the turbine, Pi is the actual steam pressure at the turbine inlet, and Pd is the desired steam pressure at the turbine inlet. Pi is measured by a piston manometer 25 connected to a transducer 6 which yields an electrical current proportional to Pi. Qi is measured by a flowmeter 4 connected to a transducer 5 which yields an electrical current proportional to Qi. The currents from transducers 5, 6 together with one representative of Pd set at rotary potentiometer 7, are fed to an electrical computing circuit R the output current of which provides the influencing control signal. The latter influences the furnace output through regulator 8 and line 9, and/or influences the boiler feedwater supply through a line 12 via a circuit 11 supplied with other control signals, e.g. one dependent on the temperature downstream of the evaporator. Alternatively or additionally, the control signal may influence the turbine steam inlet pressure through a regulator 10.
Patent GB-1476853-A (GB)
Title: Drive circuit
IPC: H03K19/018
Filed: 1975-09-16
Abstract: 1476853 Protecting transistor drivers INTERNATIONAL BUSINESS MACHINES CORP 16 Sept 1975 [3 Feb 1975] 37922/75 Heading H3T A transistor T23 in a logic output circuit is protected against short circuits at its output 25 by sensing the voltage drop across a resistor R22 in the drive circuit. When this voltage exceeds a predetermined level transistor T24 conducts to switch on transistors T25 and T26. The latter protects transistor T23 by shunting the drive signal to earth. Transistors T24, T25, T26 form a bi-stable latch which is only released when the input signal at 21 next goes high. T25 may be a lateral PNP transistor formed as an integrated circuit with the NPN transistors.
Patent GB-326273-A (GB)
Title: Improvements in sheet material for construction purposes
IPC: E04D3/30
Filed: 1928-12-22
Abstract: 326,273. Auger, J. T. Dec. 22, 1928. Metal plates.-A constructional plate for use in gas tanks, oil tanks, culverts, water tanks, cars, aeroplanes, and the like is corrugated diagonally, the corrugations converging towards the. middle line 16 of the plate where corresponding corrugations merge into each other. The edges of the plate may be flat and the joint between plates may be overlapping or butt-strapped. If the edges are corrugated, the joint is made by a corrugated strap 26, Fig. 4.
Patent GB-1065006-A (GB)
Title: Isomerisation of olefins
Inventor: TURNER LEONARD
IPC: C07C5/27
Filed: 1964-09-17
Abstract: In the process of the parent Specification, diolefins are removed from the feed, preferably to reduce the concentration below 0.5% by wt. of the hydrocarbons.  Extraction or hydrogenation may be used.
Patent GB-908313-A (GB)
Title: Improvements in and relating to citrous fruit juice extractors or presses
IPC: A47J19/02
Filed: 1960-11-04
Abstract: 908,313. Extracting juices from fruits. KREBS, K. Nov. 4, 1960 [Nov. 4, 1959], No. 38029/60. Class 28 (2). The ribbed rubbing head C of a juice extracter is guided by its externally helically screwed spindle 15 in an internally helically screwed boss 14 on the sieve cover B of the juice collector cup A, so as to rotate when pressed down against the loading of a return spring 18. Rotation of the cover B is prevented by a lug 30 thereon engaging a slot in the cup A. The boss 14 has a conical snap engagement over a ribbed sleeve 10 of the cover B. In a modification, allowing the use of alternative heads C, the element 20 is replaced by a bearing element freely receiving the end of the member 14, whilst the sleeve 10, which has bearing but no centring on the cup base, has a reduced lower portion forming a guide for the spring 18 in place of the pin 19 and acting as a locating abutment for the boss 14 which has a simple conical engagement over the sleeve.
Patent GB-1105716-A (GB)
Title: Self-driving spark gap
IPC: H01J17/00
Filed: 1966-08-25
Abstract: 1,105,716. Surge diverters. WESTING- HOUSE ELECTRIC CORPORATION. 25 Aug., 1966 [13 Oct., 1965], No. 38192/66. Heading H2H. A surge diverter of the self-driving type comprises pairs of arc chambers formed by dividing the space between opposed recessed insulating plates 12, 12<SP>1</SP>, the division being effected by an insulating plate 28 and spacer 35 which are coaxial with a tubular electrode 15 whose internal surface co-operates with rod-shaped electrodes 14, 16 to form a spark-gap 17 in each chamber. The electrodes 14, 16 are longitudinally offset so that the spark-gaps (formed by the shortest distance between members 15 and 14 or 16) are not aligned and during operation current flows around a part 17<SP>1</SP> of the circumference of electrode 15 to produce a magnetic field driving the arc between members 15 and 14 or 16 away towards a longitudinal split 29 in the member 15, projections 24 from plates 12, 12<SP>1</SP> serving to further stretch and cool the arc. A vent 11 is provided in each arc chamber and recesses 21 in the plates 12, 12<SP>1</SP> receive the electrode 15 which is located in position by notches in its edges, Fig. 7 (not shown), cooperating with projections 23 on the plates 12, 121. The assembly may have further arc chambers formed by inserting in the stack insulating plates (13) each of which has its opposed faces recessed in a similar manner to the plates 12, 12<SP>1</SP>, Figs. 4 and 5 (not shown). Further slots in members 12, 12<SP>1</SP>, 15 reduce creepage between the pairs of electrodes.