baber/WOPTO huggingface dataset:
Patent GB-584447-A (GB)
Title: Improved instrument mountings and like cushioning supports and their production
IPC: F16F1/42
Filed: 1944-06-23
Abstract: 584,447. Moulding rubber &c. mountings. DUNLOP RUBBER CO., Ltd., GURNEY, W. A., and GRAY, T. E. H. June 23, 1944, No. 11930. [Class 87 (ii)] [Also in Group XXXII] Apparatus for producing an instrument or like mounting of rubber or similar material (see Group XXXII), consisting of a metal plate 1 having an aperture 2 in which a load-sustaining core 3 is symmetrically disposed and centred by rubber or like arms 4, 5 bonded to the ends of the core and to the plate surfaces, and staggered on opposite sides of the plate, comprises two annular half-mould members 8, 9, Fig. 6, in which are force-fitted similar annular moulding inserts 24, 16. The lower insert 16 comprises a base, adapted to seat on a member 7, and an upper moulding surface having a substantially flat rim 17 and a concave, central part 18 from the bottom of which project four segments 19 with inclined faces 20. The rim 17 may have shallow depressions 17a to form radial ribs 30, Fig. 3, on the finished mounting of convex section to give progressively-increasing resistance should washers 6 on the ends of the core 3 contact therewith under overload. The upper insert 24 is very similar to insert 16 and has segments 25 adapted to fill the spaces between the segments 19 of the lower insert except for the arm-moulding spaces 26 which are inclined alternately in opposite directions from the core to an annular space 27, the core being positioned between the inserts by a step 21 and centred by a pin 22. The space 27 is adapted to receive the inner peripheral portion of the plate 1, the outer periphery of which is clamped at 14 between the mould members, and to mould on both surfaces of the plate the rubber. portions 31 which connect the arms circumferentially. The mould member 8 has a bore 10 for an axially-movable plunger 11 adapted to force rubber or the like through feed channels 29 in the upper insert, the rubber flowing through the spaces 26 to form the two inclined sets of arms 4, 5 which are vulcanized and bonded to the core 3 at their inner ends while their outer ends are bonded to the plate 1 by. subjecting the apparatus to the temperature required to effect vulcanization.
Patent GB-333596-A (GB)
Title: Improvements in furnaces
IPC: C03B25/06
Filed: 1929-04-17
Abstract: 333,596. Morton, W., A. April 17, 1929. Annealing furnaces; tunnel furnaces.-In a muffle heating furnace the heating chamber is separated from the combustion chamber 4 and flue 5 by a hearth 9 the radiation of heat from which is controlled by louvres 20 all of which are out of contact with the hearth in any position of use. As applied to a tunnel glass annealing leer the tunnel roof towards the cooler end is fitted first with hinged insulating members 24 and then with heat dispersing shutters 25, or instead of using the latter may be constructed of sheet metal. A wire mesh conveyer with gravity tension pulley 17 and adjusting pulley 16 carries the articles through the tunnel.
Patent GB-219118-A (GB)
Title: Improvements relating to the reproduction of designs, drawings, and the like
IPC: G03C5/08
Filed: 1923-05-04
Abstract: 219,118. Woods, C. P. May 4, 1923. Producing weaving designs. - Apparatus for reproducing a design for weaving or for transmission by telegraphy comprises a frame 2, Fig. 1, of honeyc o m b formation, having cells of rectangular or other section, upon which is placed an opaque sheet 3 perforated with holes corresponding with the cells. A trcansparent or translucent sheet carrying a design 1 is placed upon the sheet 3, and a sheet of sensitized photographic paper 5 is placed under the frame. On exposure, to light, the design is reproduced on the paper 5 as indicated in Fig. 4. The sheet 5 may be of the kind whereon the image portions, or the non-image portions, may be rendered electrically conducting for use in known manner in card cutting or weaving. Instead of placing the design 1 on the frame, a reduced or enlarged image thereof may be optically projected in known manner thereon. The sensitized sheet may be replaced by a glass plate for viewing the reproduction.
Patent GB-594803-A (GB)
Title: Improvements in or relating to electric wave amplifiers for wide frequency bands
IPC: H03F1/50
Filed: 1945-05-14
Abstract: 594,803. Wide band amplifiers. STANDARD TELEPHONES & CABLES, Ltd., and MONTGOMERY. W.A. May 14, 1945, No.12119. Drawings to Specification. [Class 40 (v)] In a multi-stage wide band amplifier, the anode loads are specially chosen to produce a predetermined gain characteristic function of the low or band pass type. For purposes of calculation, the valves are grouped in pairs except for the extra valve when the total number of valves is odd, and the basic circuit condition for the low pass amplifier is that the output circuits of a pair of valves have equal time constants. In the case of the band-pass amplifier, the parallel resonance circuits constituting the output networks of a pair of valves have equal damping factors, and the geometric mean frequency of the band is the geometric mean of the resonance frequencies of the two output circuits. A mathematical analysis based on these assumptions shows that the overall gain characteristic function of the amplifier may be resolved into a plurality of biquadratic functions of frequency, each involving the circuit coustants of a particular pair of valves, togother with a quadratic function of frequency corresponding to the extra valve when an odd number of stages is employed. Circuit panameters are calculated for a cascade amplifier of rstages which presents an effective gain ratio with a frequency dependent term of the form 1+x<2r>, where x is a function of frequency. A gain characteristic which undulates between prescribed limits over the Frequency band, may have a frequency dependent term of the form a+(- 1)r(1 - a) cos 2r#, where a is a quantity determining the limits of undulation and # is sin-<1>x.
Patent GB-1064245-A (GB)
Title: Appliance for attaching together sheets of paper and so forth
Inventor: GLENNON WILFRED KENNETH
IPC: B25C5/02
Filed: 1965-03-23
Abstract: 1,064,245. Stapling machines. OFREX Ltd. Feb. 23, 1966 [March 23, 1965], No. 12166/65. Heading B4C. A device for attaching together sheets of paper is in the form of a stapling machine, the anvil 5 being adapted to form one leg of a staple into a rounded head and to straighten out the other leg so that the deformed staple takes the form of a headed pin. The machine has a staple magazine 3 pivoted to a base 1 by a pin 6 and supported in the inoperative position shown by means of springs 9, 65, a spring- loaded pusher 21 being provided for urging the staples towards an ejection opening 54. A driver 2 is mounted on the base and is arranged to co-operate with the anvil which is provided with a recess (50, Fig. 2, not shown) for forming the rounded head and a recess (51) for straightening the other leg. In a modification (Fig. 4, not shown) one leg of the staple is bent over prior to it being used in the machine thereby facilitating the formation of the rounded head.
Patent GB-1435690-A (GB)
Title: Slurry aeration method and apparatus
IPC: C02F3/16
Filed: 1972-03-16
Abstract: 1435690 Screw conveyers HOWARD HARVESTORE Ltd 11 June 1973 [16 March 1972] 12213/72 Heading B8A [Also in Division B1] Slurry may be aerated by operating a screw conveyer in a tubular easing so that its inlet is accessible to air which is discharged through the outlet and into the slurry. Such a conveyer may have a deflector plate (20, Fig. 1, not shown) mounted above it so that when operated in the opposite sense slurry is drawn up and discharged over the surface. Alternatively the edges of the deflector plate may be below surface level when a Venturi effect at the edges causes air to be drawn down with the slurry. A modified conveyer, Fig. 2, has portions 22, 23 of opposite hand separated by a baffle disc 32, and an outlet 30 in the casing through which an air/slurry mixture is discharged. The conveyer may be mounted on a pivoted or travelling boom (36) optimally by means of a carriage (39), see Figs. 3 and 4 (not shown); if the conveyer axis be inclined and its motor periodically reversed, reaction will cause it to move back and forth across the container.
Patent GB-231346-A (GB)
Title: Improvements in or relating to sluice gates
IPC: E02B7/26
Filed: 1924-05-20
Abstract: 231,346. Stokes, Sir F. W. S. May 20. 1924. Sluice-gates.-Vertically sliding sluice-gates of the type having relatively large diameter rollers and lifting ropes at each side are operated by one crab having a single barrel on which are wound the ropes secured to both sides of the gate. The four ropes of two adjacent gates D, D may be taken to the barrel of one crab F mounted on the pier A between the gates. The intermediate piers B are provided with guide pulleys B<3> for the wire ropes C from the sides of the gates remote from the pier A, while the ropes C' from the nearer sides pass over pulleys A<3> on the pier A. The piers are built with grooves A<1>, B<1>, within which are disposed steel rails A<2>, B<2>, preferably ordinary railway rail, for the rollers of the gate. Each gate is provided with fixed axles carrying grooved or flanged rollers E<1> which bear on the rails A<2>, B<2>. The wire ropes C, C<1> are adjustably secured to the upper edges of the gates and the ends of the four ropes are secured to the drum F<1> of the crab F. The crab is hand operated through spur and worm reduction gearing, the latter being so designed that the weight of the gates cannot actuate the crab, and preferably a second operating handle shaft is provided giving a smaller gear ratio .:or use when lowering the gates.
Patent GB-444515-A (GB)
Title: Improvements in or relating to locks
IPC: E05B59/00
Filed: 1935-04-24
Abstract: 444,515. Locks and latches. SZALKAY, L., 14, Szondy-utca, Budapest. April 24, 1935, Nos. 12375 and 12376. Convention dates, April 24, 1934 and Dec. 17, 1934. [Class 44] A rim, mortice, or cabinet lock has the bolt, together with the levers pivoted thereto, removable from the lock casing without opening the latter, the levers with springs anchored to the bolt as well as the bolt body having no projections extending beyond the edges of the apertures through which they are to be removed. Fig. 2 shows a combined latch and lock in a common casing 1 which is let into the surface of the door and covered with a door plate. Alternatively, separate casings, as shown at 29, may be used for the lock and latch. The bolt has a cylindrical head 22 secured by a pin to a flat tail piece 21 to which levers 25 are pivoted at both sides, a spring 26 engaging the upper edges of the levers. A slot in the tail-piece and gates in the levers co-operate with a removable pin 28 screwed into the casing. An edge plate 9 has an opening shaped to admit the bolt and levers. A latch member having a cylindrical centre 4 with vertical fins 5 and bevelled at the end is similarly removable, a pin 16 working in slots 17 in the casing 1 being removably screwed into the flat tail piece 6 of the latch. The tail piece has an opening with two projections 12 to receive a spring 11 which bears on the outside of the casing. A follower 14 engages the pin 16 to withdraw the latch when a handle on a spindle 13 is turned, or the latch may be withdrawn by a key inserted through a hole 18. Fig. 5 shows a modification in which the slots in the bolt tail and levers are open at their rear end and co-operate with a fixed pin 34. To remove the bolt it is double shot and then the levers are raised by the key until the rear slot can be drawn over the pin 34.
Patent GB-1400253-A (GB)
Title: Gauging dimensions
IPC: G01B11/02
Filed: 1972-03-17
Abstract: 1400253 Measuring width photo-electrically T I (GROUP SERVICES) Ltd 14 March 1973 [17 March 1972] 12494/72 Heading G1A A measurement gauge synchronously scans two beams of light in parallel fashion, the first across a grating to produce measuring pulses in a detector and the second across the object to produce a gating signal corresponding to the width of the object. The pulses are passed to a counter for the duration of the gating signal. As described the parallel scan is produced by a square crosssection glass block 5 rotating about central axis 0, the beams being directed at centre 0. Light from laser 1 is reflected by half silvered mirror 2 and passes through lenses 3 and 4. As block 5 rotates, the beam is scanned across the object 7 and is focused by lens 8 on to photo-detector 9 which produces a gating pulse while the beam scans the object 7. The first beam passes through mirror 2, and lenses 11 and 12, is reflected by prisms 13 and 14 and passes grating 15 and the rotating block 5. The beam covers about 100 of the 0.1 mm. spaced lines on grating 15. The beam passes to a second identical grating 16 and is then focused by lens 17 into its focal plane 19. Photodetector 18 is arranged to receive only the first order diffracted beam from grating 16 as this varies in intensity with a cycle for each 0.1 mm. of beam displacement. The intensity variations are fed as pulses to counter 21 via gate 20 which is enabled by the signal from photo-detector 9. The block is preferably revolved at 6000 rpm and a reading is averaged over 100 scans i.e.  second. To increase accuracy a pulse multiplier may be used. Oscillator 23 oscillates at frequency f 2  which is ten times the frequency f 1  from photo-detector 18. Frequency f 2  is divided by 10 at 25 and fed to frequency comparator 22 along with f 1 . The difference is used to control oscillator 23 until the difference is removed. The output 24 from the oscillator is gated to the counter 21 as before. Various variations are described. Lens 8 may be replaced by a plane mirror and detector 9 to the left of mirror 2 Fig.4 (not shown). The beam may after passing window 6 be split into two parts by prisms, each part having a separate photo-detector and operating on one side of the object, Fig.7 (not shown). Measurements on a moving rod may be made with two gauges with oppositely rotating blocks, the outputs of the counters being averaged Fig.5 (not shown).
Patent GB-932186-A (GB)
Title: Improvements in and relating to colour television
Inventor: OXENHAM JOHN KENNETH
IPC: H04N9/24
Filed: 1959-04-13
Abstract: 932,186. Colour television. SYLVANIATHORN COLOUR TELEVISION LABORATORIES Ltd. March 30, 1960 [April 13, 1959], No. 12519/59. Class 39 (1). In a cathode-ray tube having a viewing screen comprising recurrent groups of parallel stripes, each group containing a plurality of colour stripes and of secondary electronemitting indexing stripes, the stripes are provided with a coating of electrically-conducting material which is provided with a layer of high secondary electron emissivity the coating being discontinuous over the indexing stripes and continuous over the remainder of the screen. If a suitable bias voltage is applied so as to render a secondary electron collector coating on the inside of the tube adjacent the screen slightly positive relatively to the conducting coating of the screen, when the beam scans the non-indexing stripes, current can flow to these stripes to maintain a high secondary emission but when the beam scans the indexing stripes a stable equilibrium is quickly reached and secondary emission ceases. In making such a screen, colour stripes R, G, B are applied to a transparent base C and the stripes and the uncoated part of the base are then coated by a plastics material P, e.g. nitro-cellulose. Indexing stripes D, which may be of a non- activated phosphor, are then applied in the desired position and the whole exposed surface coated with a coating M of an electricallyconducting material. This material is such as to form a continuous coating over the nitrocellulose layer P but a discontinuous coating M 1  over the indexing stripes D. Finally, a layer S of high secondary electron emissivity is applied. Modifications are described in which the indexing stripes are constituted by selected colour stripes or by guard bands or both. Specifications 895,771, 895,772 and 932,185 are referred to.
Patent GB-256702-A (GB)
Title: Improvements in motor vehicles
IPC: B62D25/00
Filed: 1925-05-14
Abstract: 256,702. England, E. C. G. May 14, 1925. Mounting bodies and undercarriages. - Motor - vehicle bodies may be connected to the chassis at three points; the central point of the member 3 may be connected by a universal joint of the ball- and-socket type or by a strip of fabric or leather, and the forward ends of the members 1 may be connected to the chassis rigidly or by universal joints.
Patent GB-857350-A (GB)
Title: A process for the treatment of iron pyrites ores containing arsenic and lead
IPC: C22B1/10
Filed: 1958-04-21
Abstract: <PICT:0857350/III/1> <PICT:0857350/III/2> Iron pyrites ores are freed from lead and arsenic by first removing at least a major portion of the labile sulphur together with some of the lead and arsenic, by distillation or partial combustion of the sulphur, and then contacting the remaining solid with a nonoxidising gas, containing either a minimum of 90% SO2, or 14-15% SO2 and 85-86% N2, at a temperature between 700 DEG C. and 1100 DEG C. to remove the remaining lead and arsenic.  The solids remaining are then roasted in an oxidising atmosphere, for example in a fluidised bed in either one or two steps.  The non-oxidising gas may be the effluent gas from the roasting stage.  The initial heating and distillation stage, with simultaneous combustion of a part of the labile sulphur, may be carried out using a stream of an external comburent gas, which may be preheated by contacting it with the residue from the roasting stage. The removal of the lead and arsenic may be catalysed by the presence of salts or oxides of manganese, with or without salts of magnesium. There may be added to the roasting stage substances which will solubilise any copper and zinc present, for example, sulphuric acid or sodium chloride. In Fig. 1, the raw ore is fed into fluidised bed I by line A, and air is admitted through B to burn and distil the labile sulphur. The solids then pass to fluidised bed II, and are contacted with the hot roasting gases from bed III.  The solids, now free of lead and arsenic, are passed to bed III, where they are roasted, employing a stream of air, and then discharged via line G. In Fig. 2 the beds I, II, III, are the same as in Fig. 1, but the material from III enters fluidised bed IV, where solubilisation of copper and zinc is effected, and air for bed I is preheated.  The gases withdrawn from beds I and II, may be freed from impurities and used as a source of sulphur dioxide.
Patent GB-1056881-A (GB)
Title: Electrical relays
Inventor: HOEL HANS
IPC: H02H3/40
Filed: 1964-03-25
Abstract: 1,056,881. Protective arrangements. ENGLISH ELECTRICCO. Ltd. March 24, 1965 [March 25.19641. No. 12593/G4. Heading H2K. A protective arrangement, e.g. a distance relay arrangement, comprises two bridge rectifiefs energized by A.C. signals derived from a protected system and producing unsmoothed unidirectional signals. The rectifiers have their D.C. terminals connected together in series aiding relationship and an integrator is connected across these terminals to receive an alternating difference signal dependent on the difference between the instantaneous amplitudes of the unidirectional signals. The integrator produces an output when the difference signal has a predetermined sense for a duration which exceeds a predetermined proportion of the period of this signal. The integrator may respond to the difference signal over successive periods thereof. The extent of the predetermined proportion determines the shape of the relay operating characteristic.
Patent GB-955205-A (GB)
Title: Improvements in or relating to multi-cell shuttle boxes for looms
Inventor: MULLER JOACHIM
IPC: D03D43/00
Filed: 1962-04-02
Abstract: 955,205. Checking shuttles and picking sticks. WEBSTUHLBAU NEUGERSDORF VEB. April 2, 1962, No. 12635/62. Heading D1E. The shuttle swells of a multi-cell shuttle box consist of brake bands 6 stuck to ribbed zones 5 of an inflatable cushion supported by a backplate 3. An inflatable cushion acting as a picking stick buffer is coupled by a pipe to the shuttle box cushion. Reference has been directed by the Comptroller to Specification 899,047.
Patent GB-216866-A (GB)
Title: Improvements in or relating to open-tray burners
IPC: F23D5/00
Filed: 1924-05-23
Abstract: 216,866. K³ng, E. June 1, 1923, [Convention date]. Open tray burners.- Burners in which liquid or semi-liquid oil is burnt on an evaporating surface towards which is directed an air jet comprise one or more air conduits a having nozzle apertures b for supplying air under low pressure and a symetrically arranged concave evaporating surface c upon which oil is introduced from a pipe or pipes d. The bottom of the burner casing may be covered with cinders, asbestos pieces, &c. The upper part is curved backwardly towards the centre of the burner to baffle and give shape to the flame, or other baffles may be provided. The burner is ignited by means of alcohol &c. or by a fire as of wood or paper laid on the oil layer. In the modification shown in Fig. 4 the nozzles b supply air under low pressure centrally of a circular concave trench constituting the evaporating surface.
Patent GB-851003-A (GB)
Title: Improvements in or relating to calculating instruments of the slide-rule or like type for making calculations relating to speed, time and distance
IPC: G06G1/12
Filed: 1956-04-26
Abstract: 851,003. Slide-rules. BLACKWELL, H. A.B. April 26, 1957 [April 26, 1956], No. 12772/56. Class 106 (1). A slide rule comprises a speed scale C1, a time scale C and a distance scale D, each of the scales C and D comprising two or more unit (denominational) logarithmic scales arranged end to end so as to avoid difficulties in determining the denominational value of a reading. As shown, arcuate speed and time scales are marked on one member 10 and the distance scale is carried by a transparent rotatable disc 11 formed with a pointer 13 moving over the speed scale C1. Relative movement between the two members is limited by a pin 14 working in a slot 15. The time scale is graduated in hours and minutes. Specification 707,740 is referred to.
Patent GB-1300258-A (GB)
Title: Improvements in and relating to fuel injection pumps
IPC: F02M59/10
Filed: 1970-03-17
Abstract: 1300258 Reciprocating pumps ROBERT BOSCH GmbH 17 March 1970 [18 March 1969] 12787/70 Heading F1A A substantially cylindrical insert member 14 extends through the side walls of the pump housing 1 in which it is disposed between guiding bores 5 for two roller tappets 6, flattened portions 4,15 respectively, on the tappets 6 and member 14 being in engagement to prevent rotation of the tappets, the flats on the tappets and the opposite wall of the guiding bores 4 serving to prevent longitudinal displacement of the tappet roller bearing pins 7. In a V-cylinder fuel injection pump, Fig.4, the bearing pins 7' have projections 19 which engage axial grooves 20 in the surfaces 15' on the member 14, and the lower part of the tappets are stepped, thus allowing a cam 3" of the other bank of cylinders to function without interference.