baber/WOPTO huggingface dataset:
Patent GB-904338-A (GB)
Title: Improved curing agents for organopolysiloxanes
IPC: C08G77/14
Filed: 1958-08-15
Abstract: A non-volatile diorganosiloxane in which the organo groups are selected from alkyl, aryl and haloaryl and at least one chain end thereof is terminated with a t-alkyl peroxy group, may be made by mixing a diorganodihalosilane with a t-alkylhydroperoxide and hydrolysing the resulting reaction product under substantially neutral conditions.  In Examples, (1) t-butyl hydroperoxide was added to a dry pyridine solution of (CH3)2SiCl2, followed by ice and water; the resulting mixture was saturated with NaCl and the organic layer was separated and washed with water saturated with NaCl to yield an oil comprising dimethylpolysiloxane containing at least one terminal t-butylperoxy radical; (2) a similar reaction with (C6H5)2SiCl2 yielded a mixture of siloxanes, one being terminated with one and the other with two t-butyl peroxy radicals.  The known preparation of convertible siloxanes from cyclic siloxanes is also described, using KOH as the condensation catalyst which was subsequently neutralized with trichloroethylphosphite, volatiles being removed from the end product.  Other catalysts specified are NaOH, FeCl3, 6H2O and phenylphosphoryl chloride.  The convertible siloxanes can be compounded with fillers, e.g. silicas (aerogel and fume), calcium silicate, TiO2, Fe2O3, Cr2O3, CdS, CaCO3, C black, asbestos, glass fibres, lithopone and talc, structure-reducing agents, e.g. diphenylsilane diol (as described in specification 781,488) and the above siloxane peroxides, and cured.  Uses: for making tapes, gaskets, tubing, electrical insulation, coatings, shock-absorbers, sleeving and, when dispersed in organic solvents, for coating and impregnating cloth.  Specification 618,451 is referred to.  Reference has been directed by the Comptroller to Specification 824,315.
Patent GB-739703-A (GB)
Title: Improvements in or relating to the preparation of fermentation glycerine
IPC: C12P7/20
Filed: 1950-10-31
Abstract: In the production of fermentation glycerine wherein sugar or sugar-containing substrates are fermented with yeast, with the addition of sulphite, in several fermentation steps with the re-using of the re-cycled residues and the separated yeast, the first fermentation is operated at a low temperature, about 20-25 DEG  C., so that a slowing of the fermentation takes place, and the temperature in the following fermentation steps is gradually increased, during which latter each step is preceded by further temporary temperature lowering to hinder the fermentation.  In an example, the first fermentation step is started at a temperature of 23 DEG  C., which rises after 40 hours to 25 DEG  C.  The yeast is separated, the alcohol and acetaldehyde distilled off, and the residue cooled to 24 DEG  C.  Fresh sugar is added to the residue together with the separated yeast and fresh yeast and also a small proportion of fresh sulphite, and the fermentation is begun at 25 DEG C. and ended at 27 DEG  C.  The process is then repeated for four further steps, the temperature ranges of which comprise 21 DEG  to 27 DEG  C., 25 DEG  to 28 DEG  C., 26 DEG  to 30 DEG  C. and 28 DEG  to 32 DEG  C.  The process results in higher yields of glycerine, a purer product, and requires less amounts of the sulphite additions in the further fermentation steps, and also less amounts or no further additions of fresh yeast in these steps.  The yeast used in the process may be a yeast obtained by a process with a fermentation slowing as described in Specification 739,702, [Group VI].
Patent GB-638933-A (GB)
Title: An improvement relating to sewerage interceptors
IPC: E03C1/122
Filed: 1947-10-03
Abstract: 638,933. Sewerage traps. SANDERS, C. Oct. 3, 1947, No. 26631. Addition to 582,288. [Class 33] In a sewerage trap B, as described in the parent Specification, the stopper C is wedgeshaped and is slid between the guard A and a seating J on the trap. The stopper C may be fitted with a lifting handle F, and the seating J with a sealing washer E.
Patent GB-458281-A (GB)
Title: Improvements in or relating to parachutes
IPC: B64D17/52
Filed: 1935-09-27
Abstract: 458,281. Pack parachutes. POOL, J. H., Henlow Camp, Bedfordshire. Sept. 27, 1935, No. 26696. Drawings to Specification. Class 4] A parachute pack has one component of a liding - clasp fastener secured thereto and adapted to be brought into co-operative elationship with a complementary component of a sliding-clasp fastener carried by a support. The sliding tab which effects interconnection of the components may be carried by either component. The pack is frameless, flexible and covers the whole of the aviator's back. The parachute is connected to the harness by snap hooks and the pack may be combined with the aviator's suit, a seat, cushion or other part of a chair or upon a wall of the aircraft.
Patent GB-207935-A (GB)
Title: Improvements in or relating to means for cleaning wind screens as used on motor vehicles and the like
IPC: B60S1/34
Filed: 1922-10-05
Abstract: 207,935. Kay, A. H. Oct. 5, 1922. Windows and the like, cleaning.-A channelshaped runway a of sheet metal lined with leather b is secured to the edge of a motor-vehicle windscreen o by clamps q at its ends, and. a carrier c for the squeegee i is slidably mounted thereon by having its edges bent over at c' to engage the edges of the runway. Secured to one side of the carrier is a boss d with projections engaging corresponding recesses in a member f fixed to the boss d by a bolt g. The member f carries lugs f<1> to which are pivoted links h carrying the squeegee i, and a leaf-spring n secured by the bolt g presses upon the centre of the squeegee so that it bears upon the glass. To the other side of the carrier is fixed a handle h<2> accessible from inside the vehicle whereby the cleaner may be traversed across the screen. To lessen friction the upper surface of the runway may be ridged longitudinally. The squeegee may consist of washleather k, Fig. 6, secured around strips of stiff material l such as metal, and clamped by a U- shaped backing i or of rubber strips similarly clamped.
Patent GB-170286-A (GB)
IPC: H04J1/14
Filed: 1921-10-11
Abstract: 170,286. Western Electric Co., Ltd., (Assignees of Hartley, R. V. L.). Oct. 11, 1920, [Convention date]. Manual-exchange systems. - In a signalling system wherein carrier-wave oscillations are normally applied to a transmission line by means of an oscillation-generating device associated therewith, signalling arrangement associated with one end of the transmission line is operated upon the withdrawal of the carrier-wave oscillations from the other end of the line. The Figure shows an arrangement adapted for multiplex working in which a number of lines L1 associated with ordinary telephone stations X are connected through carrier channels 1 to a common transmission line ML to which is also connected a line L3 associated with a station Z employing voice-frequency currents. Similar circuit arrangements are employed at the distant end of the line ML. The transmitting circuits T1 and the receiving circuits R1 of the carrier channels 1 are connected to the stations X through three-winding low-frequency hybrid coils LFH1, and to the common line ML through the high-frequency hybrid coils HFH, balancing networks N1, NET, being connected as shown. Band filters MF1, DF1, of the Campbell type, each respectively connected in series with the corresponding filters in the other channels, and high-pass filters HPF and low-pass filters LPF are employed for receiving and transmitting over desired ranges of frequency only. Normally the oscillator O1, connected to the modulator M1, is sending out unmodulated carrier waves which, passing through the filter DF1, and the amplifier A1, of the distant receiving circuit, are applied to a. threeelectrode thermionic detector D1, in the anode circuit of which are a low-frequency retard 9 and a relay G, which is only energized when carrier waves are being received. To the anode of the detector there is also connected the primary of a low-frequency transformer 10 for transmitting voice currents to the coil LFH1, and thence to a line L1. To send a signal, the operator at a station impresses ringing current on the line L1, thus energizing the ringing-responsive relay 3, the operation of which short-circuits the oscillator O1 and also energizes the relay 5 which disconnects the modulator M1 from the line L1 and also short-circuits the input circuit of the modulator. The interruption of the carrier-wave at the distant receiving station de-energizes the relay 6, the armature of which causes the energization of relays 7 and 4, the former connecting the low-frequency signalling source 13 to the line, thus giving a calling signal. The relay 4 disconnects the coil LFH1 from the modulator M1 and short-circuits the modulator input circuit, in order to prevent disturbances due to the unbalancing of the coil LFH1.
Patent GB-1536908-A (GB)
Title: Automatic article sorting apparatus
IPC: B07C5/04
Filed: 1976-06-29
Abstract: 1536908 Sorting laundry articles by conveyer system; stacking sheets F W GRANTHAM 29 June 1976 [24 July 1975] 27056/76 Headings B8A and B8R [Also in Division D1] A folding machine (14) (Fig. 1, not shown) for laundered articles 70, comprises a series of belt conveyers 16, 18, 20, each of which has means for sensing a parameter of the articles (as shown, the parameter is length). According to the value of the parameter, the article is discharged by the appropriate conveyer 16, 18 or 20, on to a respective stack on a receiving conveyer 180, 182, or 184. As shown, each article 70 engages successive feelers 194, 196, projecting below the surface of the belt 16, and operative to close associated switches 190, 192. If the article is greater than a given amount in length, switches 190, 192, remain closed while a third switch 200 (Fig. 7a, not shown) (which is closed for a given timed period in response to operation of the switch 190) also remains closed. The effect of all three switches 190, 192 (200), being simultaneously closed, is to activate a circuit (174, Fig. 7a, not shown) to operate a brake 158 to stop the conveyer 10, and to activate a further circuit (134) to release members 110, 112 so they drop down into an article discharge position (Fig. 5, not shown). If the article is shorter than the given length, but longer than a second given length, the three switches 190, (200), 192, do not have time to all be closed at the same time, and the article is discharged from the conveyer 18 by similar discharge means to that described in respect of the conveyer 16. If the article is shorter than the second given length, it goes on to be discharged from the conveyer 20. Still shorter articles may be collected from the normal output end of the conveyer 20. Instead of length, the parameter may be the reflectivity of the article as determined by a light source and optical detector (not described in any further detail). A disabling switch may be used to prevent normal discharge of the articles.
Patent GB-720132-A (GB)
Title: Improvements in or relating to linear dimension gauges
IPC: G01B3/22
Filed: 1952-10-28
Abstract: 720,132. Linear-dimension gauges. CAPP & SON, Ltd., A., and CAPP, A. Aug. 6, 1953 [Oct. 28, 1952], No. 27074/52. Class 106 (2). A dial gauge, Fig. 3, for measuring variations in the height or depth of a surface comprises a pivoted feeler 4 the deflections of which are transmitted to a coaxially pivoted lever 1 having an extension 1<1> Fig. 4, at its free end, the extension 1<1> being engaged between adjacent turns of a helix 5 fitted tightly on a shaft 6 of an indicator needle. The helix 5 may be of piano wire. Oscillatory movement of the lever 1 produces corresponding rotation of the helix 5 and of the shaft 6. A clip 15 allows easy replacement or adjustment of the feeler member 4 which is friction held against the lever 1. A spring 10 is adapted to press the lever 1 either upwards or downwards according to whether an upper or lower surface is to be tested. Specification 468,243 is referred to.
Patent GB-688369-A (GB)
Title: Improvements in filters for suppressing rapid variations of a direct-voltage source
IPC: H02M1/14
Filed: 1951-11-19
Abstract: 688,369. Electric filters. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 19, 1951 [Nov. 22, 1950], No. 27080/51. Class 40 (viii). In a filter for suppressing ripple on a D.C. supply, consisting of a capacity in parallel with the source and an inductance or resistance 10 in series with the source followed by a further capacity in parallel, the capacities are formed from units consisting of two capacities in a common casing, one part 7 in the first unit and one part 11 in the second forming the first capacity mentioned above, and one part 8 in the first casing and one part 12 in the second forming the second capacity. The condensers shown are of the electrolytic type and this' cross mode of connection minimises heating when in use.
Patent GB-409684-A (GB)
Title: Electrical musical instrument
IPC: G10H3/18
Filed: 1932-10-01
Abstract: 409,684. Electrical musical instruments. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Vierling, O. ; 7, Klodenstrasse, Berlin.) Oct. 1, 1932, No. 27324. [Class 88 (ii).] Relates to electrical musical instruments in which the vibrations of strings, bars, forks, &c. are translated by electromagnetic or electrostatic devices into electric oscillations which are transmitted to a loud-speaker or the like, and consists in providing the translating devices with means for moving them at will along the vibrators to vary the timbre. In Fig. 2, each length of string 61 is doubled to form two vibrators, the two ends being attached to tuning-pins 65 and the loop being passed zig-zag through holes 81 in a bar. The strings are vibrated by hammers 8 pivoted at 10 and carrying dampers 72 at the other end, the hammers being actuated by keys 15 pivoted at 76 ; or the strings may be plucked &c. The translators consist of electromagnets 97<1> mounted on a bar 991 which is movable by a rod 38 to bring the magnets opposite any part of the strings. Shielding 45 protects the magnets from stray fields. One translator may be associated with a plurality of vibrators. In Fig. 2<a>, the leads 1 from the instrument by means of switches 2<1>, 3<1> are combined alternatively or simultaneously with leads from a radio-receiver 4<1> and a gramophone pick-up 5<1>, all transmitting oscillations to the same loudspeaker 44. Between (or preceding or following) two amplifiers 41, 43 a tonecontrol 40<1> and volume-control 42 are inserted. The tone-control consists of a potentiometer 21<1> with an inductance 22<1> and condenser 23<1> in shunt across the output, and attenuates the low or high frequency components. Fig. 3 shows a fixed set of electromagnets 110 and a set 120 mounted individually on sliding strips 121 having pins 122 engaged by a slot in a bar 123 pivoted at 124 and movable by a handle 126, so that the position of the magnets is varied in proportion to the lengths of the strings. The magnets are connected in series in the two sets, top to top, and bottom to bottom successively, reducing susceptibility to stray fields. The oscillations from the two sets of magnets are combined in different proportions, if desired with reversal of phase, by potentiometers 113, 114 and led to amplifying tube 131, thence by volume control 136 to amplifier 137 and loud-speaker 138. Fig. 6 shows the vibrator in the form of a magnetic bar 11 supported at nodes on rubber bands 5 fitting in recesses 7 in the supports 3. The bars are held down by pieces 12 and prevented from moving laterally by separator-strips. Specification 408,998 is referred to.
Patent GB-1355363-A (GB)
Title: Method of and system for transmitting a measurable quantity
IPC: G01S15/96
Filed: 1971-06-10
Abstract: 1355363 Pulse modulation circuits ELECTROACUSTIC GmbH 10 June 1971 [11 June 1970] 27256/71 Heading H4L [Also in Division G1] A thermistor for measuring underwater temperature varies the mark/space ratio of an astable multivibrator, the resulting signal being sent to a ship together with a depth signal, measured by an echo-sounding device, on a single core cable. As shown (Fig. 2) a thermistor 14 in thermal contact with the water through a link 23, determines the pulse duration of astable multivibrator 11. These pulses are squared by a bi-stable multivibrator 19 and gate a transistor 25 to allow HF oscillations from an oscillator 22 to be fed via transformers 28 and 9 to the single core cable 7 (Fig. 3) connecting an echosounder to the ship, where the signals are separated by a filter 30. The HF temperature signals are amplified at 31, demodulated at 32, 33 and energize a Schmitt trigger 34 to send current through a meter 39 in opposite directions during the mark and space intervals respectively. The average current through meter 39 is therefore indicative of the original mask/space ratio, and thus of the underwater temperature.
Patent GB-775066-A (GB)
Title: Improvements in or relating to dispensing devices for fluid-containers such as bottles or the like
IPC: B65D47/40
Filed: 1955-09-27
Abstract: 775,066. Drop-delivering stoppers. BRUNE, H. Sept. 27, 1955 [Sept. 27, 1954 ; Dec. 30, 1954], No. 27554/55. Class 125(3). A one piece pouring spout for bottles and the like comprises a hollow cylindrical body, Fig. 5, with one or more elastic sealing sleeves 4 and 6, an aperture 10 for the entry of air, and one or more separate apertures 3 for the exit of liquid, the body merging at its upper edge into a surrounding distributor channel 9 and subsequently into a dropping edge 5. The liquid exit apertures 3 and the distributor channel 9 may be connected by an annular space 8, Fig. 1, that is made so narrow that the liquid is drawn into it and distributed therein by capillary action. The annular space 8 may be divided into a plurality of chambers by transverse walls, each chamber having its own liquid exit aperture.
Patent GB-208692-A (GB)
Title: Improvements in or relating to balancing machines
IPC: G01M1/04
Filed: 1923-11-02
Abstract: 208,692. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Soderberg, C. R.). Dec. 21, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Testing balance of rotary apparatus.- In balancing machines of the type in which the body under test is rotated on a movable platform supported on a movable fulcrum as described in Specification 205,486, an adjustable oountBru'eight is provided so that the unbalanced centrifugal forces may be balanced in order to determine the mass and position of the balance weights required to be attached to the rotary body. The body 26 under test is mounted on roller bearings 25 ona platform 2 which is supported by springs 3 and a movable fulcrum 4. A hand wheel 13 and a screw 12 are arranged to move the fulcrum which consists of a transverse beam 5 having rollers 8 upon which the platform 2 rests. Jacks 15 actuated by a hand wheel 18 are provided for lifting the platform off the fulcrum. An electric motor 29 drives the test body 26 through a flexible connection 28, and also drives through gearing 31 a shaft 32 upon which the discs 37 carrying the adjustable counterweights for determining the balance weights are mounted. The discs have extension sleeves 38, 39 in screw-threaded engagement with adjusting sleeves 46, 45 the former of which is loosely keyed on a shaft 32, the latter being loosely keyed on the sleeve 38. By moving the sleeves 45, 46 axially by forks engaging collars 51 and actuated by hand-wheels 53, 54, the discs 36, 37 may be adjusted to vary the relative angular position of the counterweights 43, 44 carried by them. A pointer 56 is provided having a sleeve 57 which is connected to the disc 36 bv a link 58, and to a pin 60 on the disc 37 by a link 59. This pointer indicates the centre line between the radii to the centres of gravity of the weights 43, 44. An indicator 64 is attached to the rim of the disc 37, and the rim of the disc 36 is graduated. In operation the fulcrum 4 is moved into the plane AA, and the test body 26 is rotated by the motor 29 at any desired speed. The discs 36, 37 are adjusted relatively until vibration of the platform 2 ceases as will be shown by a dial indicator 20 on the. bed actuated by an arm 21 on the platform. The pointer 56 then indicates the longitudinal plane in which the balance weight is to be applied in the plane B, B, and the indicator 64 shows the magnitude of the weight to be applied. The platform 2 is then raised from the fulcrum 4 by the jacks 15 and moved so that the fulcrum is in the plane B. B, when the operation is repeated to determine the correction to be applied in the plane A, A.
Patent GB-1516105-A (GB)
Title: Heating apparatus
IPC: C21B13/00
Filed: 1975-06-30
Abstract: 1516105 Preheating furnace charges DSO "CHERNA METALURGIA" 30 June 1975 27592/75 Heading F4B Apparatus for preheating and reducing a blend of raw materials, e.g. materials to be fed into an electric furnace, comprises a cylindrical shaft 4 having a frusto-conically shaped lower portion connected to a perforate tube 5 extending through a combustion chamber 6 which is eccentrically mounted below the shaft, the combustion chamber 6 being fired by a burner 9. In operation the shaft 4 is filled to a predetermined height with raw material from a bunker 1. Hot gases from the combustion chamber are drawn in through the perforated tube 5 and pass upwardly over the raw material before being discharged through an outlet tube 3. Preheated material leaving the bottom of the tube 5 is discharged from the apparatus by means of a rotating disc 7 and outlet tube 8.
Patent GB-464750-A (GB)
Title: Improvements in and relating to the scavenging and charging of the cylinders of two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1936-10-12
Abstract: 464,750. Cylinders. JUNKERS FLUGZEUG-UND-MOTORENWERKE AKT.-GES. Oct. 12, 1936, No. 27644. Convention date, Oct. 14, 1935. [Class 7 (ii)] In the cylinder of a two-stroke engine, the inlet ports 5 are uncovered by the piston before the exhaust ports 6, and are fed with scavenging air or combustible mixture by long smooth passages 3, mixing of exhaust gas with the charge being thus prevented. The passages 3, which are oblique to the cylinder axis and tangential to the cylinder base, extend from an annular passage 13 and an admission duct 11. The exhaust passages 4 are short and open directly into an exhaust duct 8.
Patent GB-989065-A (GB)
Title: Improvements in or relating to pulleys
IPC: F16H61/662
Filed: 1961-07-31
Abstract: 989,065. Expanding-wheel gear. SOC. INDUSTRIELLE DE TRANSMISSIONS. July 31, 1961 [July 29, 1960], No. 27715/61. Heading F2D. A V-belt pulley comprises flanges 17, 18 axially movably mounted on a shaft 4, the flange 18 being adjustable to vary the effective diameter of the pulley by means of a hand wheel 15 having a screw-threaded connection with an axially movable sleeve 8 which shifts the flange 18 axially. The flange 17 is shiftable in order to disconnect the drive by a hand wheel 14 having a coarse screw thread connection with a sleeve 7 which shifts the flange 17 axially to permit the belt to rest on a loose inner wheel 3 whatever the position of the flange 18. Return of the flange 17 to its inner position restores the pulley to its original undisturbed diameter setting unless flange 18 has been readjusted. The travel of flange 18 is insufficient to disconnect the drive when flange 17 is in its inner position.
Patent GB-208832-A (GB)
Title: Improved manufacture of alkali sulphides from thiosulphates
IPC: C01B17/26
Filed: 1922-10-03
Abstract: Alkali sulphides are obtained by heating a mixture of alkali thiosulphate and carbonaceous material such as coal, coke or charcoal.  The crystals of thiosulphate are preferably first dehydrated.  The heating is effected at 900 DEG  C.  Any alkali carbonate produced is separated from the thiosulphate in known manner.  Specification 209,169 is referred to.