baber/WOPTO huggingface dataset:
Patent GB-831497-A (GB)
Title: A signalling device for motor vehicles
IPC: B60Q1/38
Filed: 1956-09-19
Abstract: 831,497. Signalling devices for road-traffic vehicles. PAUK, W. Sept. 19, 1956 [Sept. 22, 1955], No. 28655/56. Class 118 (2). A vehicle signalling device comprises an assembly of three lamps 6 (amber), 7 (red) and 8 (green) arranged to be visible from the sides of the vehicle to indicate, especially at intersections when the vehicle is stationary or moving slowly, the intention of the driver to pedestrians and to the drivers of other vehicles, the amber lamp indicating " caution " (when the engine is idling), the red lamp indicating " danger " (when the engine has been " revvedup ") and the green lamp giving an " all-clear " signal (when the brakes have been applied). Fig. 2 shows the circuit connections of the device and the arrangement operates as follows. On closing the ignition switch 12 the battery circuit to the amber lamp 6 is completed via the dynamo 9 and cut-out 10 and, at the same time, the winding 15 of a relay 16 is energized, opening contact 17 and closing contact 18 and causing condenser 19 to charge to the battery potential. When the engine is " revved-up " the dynamo voltage opposes the battery voltage resulting in the extinction of the amber lamp and the reversion of contacts 17 and 18 to the position shown, the charge on condenser then flowing through the winding 21 of a second relay 22, via a resistor 20 giving a time constant of about 4 seconds, and causing contact 23 to close and complete the circuit to the red lamp 7 which remains illuminated until condenser 19 is discharged. When the brakes are applied the brake switch 13, in addition to switching on the conventional stop lamp 14, operates the parallel connected green lamp 8 and also energizes a second winding 24 on relay 16 causing contact 17 to open and contact 18 to close, the former ensuring that the red lamp 7 is not illuminated and the latter allowing condenser 19 to recharge so that when the brake is taken off the de-energization of winding 24 allows the contacts 17, 18 to reverse and the red lamp 7 is again switched on, the amber lamp 6 being either on or off depending on the engine speed. By replacing the relay 16 by two separate relays the amber lamp 6 may be prevented from being energized when the circuit of either of the other two lamps is completed (Fig. 3, not shown).
Patent GB-205998-A (GB)
Title: Improvements relating to lock or firing mechanism for self loading fire arms
IPC: F41A19/33
Filed: 1922-10-23
Abstract: 205,998. Farquhar, M. G., and Hill, A. H. Oct. 23, 1922. Machine guns.-Firing mechanism adjustable for single-shot and continuous firing comprises a draw-bar or the like connecting the trigger and the sear and an adjustable tripping - device adapted, when set to its operative position for single-shot firing, to be operated by a moving part of the breech action and positively to disengage the draw-bar from the sear. In Figs. 1 and 4 the invention is shown applied to the breech action described in Specification 127,957. The tripping-device 24 is pivoted to the draw-bar 23 and can be adjusted backwards and forwards by an eccentric 25a operated by an external lever 25. When in its forward position shown in Fig. 1, the tripping-device is engaged by a projection 19<a> on the hammer 19 when the hammer is thrown back during the operation of the gun, the draw-bar being thereby lifted to disengage the sear 20. When the tripping-member is in its rear position, it is not engaged by the hammer so that the draw-bar remains in engagement with the sear and the firing is continuous. In a modification, Figs. 7 and 9, the tripping-device comprises a lever 25 pivoted transversely to the sear-actuating link 23 and adapted to be raised, as shown in full lines in Fig. 7, into a position in which it is engaged by the reciprocating bolt-carrier 32. The link 23 is thereby disengaged from the sear, which is able to rise and engage a shoulder 32<a> on the boltcarrier. With this arrangement may be combined a firing hammer under the control of an automatically operated sear as described in Specifications 15028/15 and 127,957, [both in Class 119, Smallarms.]. A safety device comprising a partly flattened rotatable bolt 33 may be provided for locking the trigger. Fig. 16 shows the invention applied to an action in which the firing pin is formed on the reciprocating bolt 34. The tripping- device 24 pivoted on the draw-bar 23 is similar in construction to that shown in Fig. 1 and is operated by the bolt 34. Specification 126,055 is also referred to.
Patent GB-1379676-A (GB)
IPC: H02K17/12
Filed: 1972-06-20
Abstract: 1379676 Electric induction machine short primary member TRACKED HOVERCRAFT Ltd 7 June 1973 [20 June 1972] 28784/72 Heading H2A This invention concerns a plural phase A.C. short primary electric induction machine primary member, which may be a primary member of a linear induction motor or a primary member which does not extend around the full circumference of a rotary machine, and is directed to so arranging and connecting its winding coils as to reduce or eliminate the differences between the back E.M.F.'s induced in the leading and trailing ends of the member. To this end the member comprises a plurality of sets of coils, e.g. R1A, R1B and R2A, R2B, each set containing the same number of coils and all coils of a set being closely adjacent one another, a plurality of phase bands for each phase, each band comprising at least one set of coils, a series of groups of windings successively displaced along the length of the member, each group comprising at least one phase band for each phase, a plurality of circuit branches for each phase, the plurality being equal in number to the number of coils in each set and each branch containing one coil from each phase band from each group, and a parallel circuit for each phase formed by connecting the branches mutually in parallel. As shown, each set comprises two coils which are in either the same or adjacent slots (3), Fig. 3, of a stator core 1, and the groups may be divided into blocks, the block of one group being interleaved with blocks of another group along the length of the member. To effect pole changing, each branch of each circuit has an intermediate connection point, e.g. R(iii), R(iv) between the phase band parts of the two groups in the branch, whereby when a supply is applied thereto, instead of to R(i), R(ii), the current flow is reversed in parts of the group, and Fig. 12 shows a parallel/parallel pole changing switching arrangement providing star connection for both pole members.
Patent GB-1465779-A (GB)
Title: Preparation of morphine derivatives and their use in the determi nation of opium alkaloids
IPC: G01N33/53
Filed: 1974-06-28
Abstract: 1465779 Morphine/protein derivatives bonded to latex polymers F HOFFMANN LA ROCHE & CO AG 28 June 1974 [29 June 1973] 28821/74 Headings C3P and C3H [Also in Divisions C2 and G1] An immunological diagnostic reagent is disclosed, which comprises discrete particles of latex polymer having carboxyl groups covalently bound through an amide linkage to the amino group of unsubstituted amino C 2-8  alkyl ether of the phenolic hydroxyl group of morphine which may be prepared by coupling an unsubstituted amino C 2-8  alkyl ether of the phenolic hydroxy group of morphine to a carboxylated latex polymer by means of an amide linkage in the presence of a water soluble carbodiimide. The polymers may be used in a test to detect opium alkaloids in body fluids. The carboxylated latex polymers disclosed are carboxylated styrene/butadiene copolymers, carboxylated styrenes and acrylic acid polymers. The unsubstituted amino C 2-8  alkyl ethers of the phenolic hydroxy group of morphine disclosed are 3-0-(3-aminopropyl) morphine and 3-0-(4-aminobutyl) morphine. The unsubstituted amino-C 2-8 -alkyl ether of the phenolic hydroxyl group of morphine may also be linked to proteins and polypeptides through an amide linkage to give an antigen useful for detection of antibodies specific for opium alkaloids.
Patent GB-1235283-A (GB)
Title: The use of ureas and carbamates containing amino groups in dispersions
Inventor: SARFAS DONALD THOMAS
IPC: C08K5/00
Filed: 1967-06-22
Abstract: 1,235,283. Ureas and carbamates containing amino groups. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 June, 1968 [22 June, 1967], No. 28823/67. Heading C2C. [Also in Division C4] Ureas and carbamates containing tertiary amino groups not directly attached to an aromatic nucleus are prepared by condensing a diisocyanate with a diamine or amino alcohol containing a tertiary amino group and optionally a glycol or a diprimary amine or a primary aminoalcohol. Examples disclose the condensation of tolylene diisocyanate with (a) ethylene diamine and 3-dimethylamino propylamine, (b) N - (2 - aminoethyl) - piperazine, (c) N,N<SP>1</SP> - bis- (3-aminopropyl) piperazine, (d) 2-diethylaminoethanol to give bis-(diethylaminoethoxycarbonylamino) toluene, (e) 2-diethylamino ethanol and ethylene glycol, (f) 2-diethylaminoethanol and N,N-bis-(2-hydroxyethyl)-oleylamine, (g) 2- diethylaminoethanol and N,N-bis-(2-hydroxyethyl) octadecylamine and of 2-diethylaminoethanol with 4,4<SP>1</SP>-diisocyanatodiphenylmethane to give 4,4<SP>1</SP>-bis-(diethylaminoethoxycarbonylamino) diphenylmethane and of 2-diethylaminoethanol with 1,6-diisocyanatohexane to give 1,6 - bis - (diehylaminoethoxycarbonylamino) hexane.
Patent GB-1359220-A (GB)
Title: Method of and apparatus for ultrasonic testing of rails
IPC: G01N29/06
Filed: 1971-06-21
Abstract: 1359220 Ultrasonic inspection devices POLSKA AKADEMIA NAUK ZAKLAD DOSWIADCZALNY BUDOWY APARATURY NAUKOWEJ UNIPAN 21 June 1971 [20 June 1970] 28942/71 Heading H4D A pulse-echo system for the ultrasonic testing of rails for flaws, wherein respective probes launch longitudinal and transverse waves into a rail (vertically and, e.g., obliquely, respectively) to explore different, respective penetration ranges, is characterized in that the probes are energized separately, one after the other, and simultaneously with each energization there is generated in the time-base unit of a cathode-ray tube (C.R.T.) echo indicator a deflection voltage with a respective rise rate associated with the penetration range of the particular probe being energized, but with a peak amplitude identical for all the probes. This enables each penetration range to be displayed over the whole width of the C.R.T. screen. In the embodiment described the echo signals are time gated (with different width gates for the respective penetration ranges) so that signals from the different probes can be distinguished. Echoes within these gates actuate an optical or acoustical signal unit and may be applied to a recording system showing the presence or size of a flaw. Buffer stages isolate the probes from each other during transmission but allow the probe outputs during reception to be combined at the input of a common amplifier before application to the C.R.T. In a modification, single probes may be replaced by groups of parallel-connected ones, the probes of a group having different beam directions.
Patent GB-811559-A (GB)
Title: Improvements in or relating to the continuous crystallisation of solids from their solutions
Inventor: HOLK THEODORUS JOHANNES JOSEPH
IPC: B01D9/00
Filed: 1957-09-13
Abstract: In a method of crystallizing solids from solutions by passing the solution continuously through a cylindrical vessel provided with a cooling jacket and stirrer, and removing crystals in suspension continuously from the vessel, wherein the loss of heat through the walls of the vessel and the speed of the stirrer are controlled so that seed crystals are formed more rapidly than developed crystals are discharged and the excess seed crystals are dissolved in the hotter parts of the solution as a result of the stirring, as described in the parent Specification, the vessel is oriented with its axis in a non-vertical position and the solution is introduced at or near one end and discharged at the other.  The vessel may be inclined to the horizontal and the solution may be introduced at the lower end, or the vessel may be horizontal.  The solution may be passed through a series of vessels.  In a modification the vessel is in the vertical position, as in the parent Specification, but the fresh solution is passed into the bottom of the vessel and cooled solution with crystals in suspension is discharged from the top.  In an example, anthracene is crystallized from anthracene oil passed through three horizontal vessels.
Patent GB-1447028-A (GB)
Title: Adventure playground unit
IPC: A63G21/20
Filed: 1972-07-21
Abstract: 1447028 Playground equipment RECORD PLAYGROUND EQUIPMENT Ltd 22 Oct 1973 [21 July 1972] 28953/72 Heading A6M A play unit for a playground consists of an inclined rail 6 supported by a series of spaced columns 2 and arms 4, and a pulley or bogey 8 movably mounted on the rail and from which is suspended a handle 10, chain seat, stirrup or the like by which a user of the unit may travel along the rail. The rail 6 is preferably constituted by an I-section metal member (e.g. a joist or girder section) and the bogey 8 may carry a shroud 8A. The end of the rail 6 may be upwardly inclined and/or provided with a buffer unit. The unit may have two rails or the rail may be formed into two branches as shown in dotted line.
Patent GB-733983-A (GB)
Title: Protective cap for electric accumulators
IPC: H01M50/571
Filed: 1953-10-20
Abstract: 733,983. Batteries. ALLER, J. Oct. 20, 1953 [Jan. 3, 1953], No. 28997/53. Class 53. The screw plug that closes the filling opening of an accumulator and which is perforated for the escape of gas is covered with a rubber or other resilient cap 1 which contains an absorbent pad 2 to retain any acid entrained in the escaping gas. The gas escapes by seeping under the rim of the cap into the atmosphere. The cap may be provided with perforated lugs to fit over the terminals and may be made to cover two or more of the screw plugs.
Patent GB-483586-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J43/04
Filed: 1936-10-26
Abstract: 483,586. Electron multipliers ; generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and LINSELL, A. A. Oct. 26, 1936, No. 29095. [Classes 39 (i) and 40 (v)] Auxiliary electrodes 19, 20, Fig. 2, are located adjacent the multiplying electrodes 2, 3, (but not the last electrode 4) of an electron multiplier of the type in which accelerating electrodes 6 ... 9 are arranged opposite the cathode 1 and multiplying electrodes 2, 3, 4 and the electron paths are bent round by a suitable magnetic field. As the voltage on the electrodes is increased the current to the output electrode 12 rises to a maximum and then falls ; the auxiliary electrodes increase the sharpness of this maximum and render the tube more suitable for frequency-multiplying purposes. In Fig. 2, the auxiliary electrodes are inclined and are connected directly to the next multiplying electrode. In another form the auxiliary electrodes are parallel to, and behind the gaps between the multiplying electrodes. Separate external leads to the auxiliary electrodes may be provided. In an alternative modification, the auxiliary electrodes 21, 22, Fig. 5, are placed behind the edges of the output electrode 12. The frequency to be multiplied from source 13 is rectified at 14 and the half-wave rectified pulses developed across resistance 15 are applied to all the electrodes. In working near the maximum of the characteristic a frequency four times the input frequency is developed across the resonant circuit 18. The current collected by electrodes 21, 22 may be fed back through coils 23, 24 and the peak is thereby sharpened. The Provisional Specification describes also modifications in which the sharpening of the peak is attained by gradually increasing the size of the electrodes or the area of secondary emissive surface on each electrode. The secondary emissive material may be coated on the centre only or on the periphery only of the electrode.
Patent GB-370360-A (GB)
Title: Improvements in thermionic amplifiers
IPC: H03G1/04
Filed: 1930-09-29
Abstract: 370,360. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN 13D, Emmasingel, Eindhoven, Holland. Sept. 29, 1930, No. 29133. Convention date, Oct. 3, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] The grid bias for one stage of an amplifier is varied by grid currents occurring in the next stage. The grid current in the valve 6, Fig. 1, produces a potential drop in the resistance 4 connected in its grid circuit and shunted by a byepass condenser 5. The negative end of resistance 4 is connected through a resistance 8 to the grid end of a resistance 12 in the grid circuit of valve 1, also shunted by a byepass condenser 10. Thus overloading in the grid circuit of valve 6 is automatically corrected by an increase of negative bias on the grid of valve 1. In another arrangement the grids of valves 17, 18, 19, Fig. 3, of a cascade amplifier are joined together through resistances 24, 25, and separately connected through resistances 21, 22, 23 to the earthed cathodes.
Patent GB-729024-A (GB)
Title: Means for detachably fastening a typewriter in its case
IPC: B41J29/13
Filed: 1953-10-22
Abstract: 729,024. Boxes. OLYMPIA WERKE WEST GES. Oct. 22, 1953 [Oct. 31, 1952], No. 29196/53. Addition to 716,308. Class 18. [Also in Groups XVI and XXV] In a box for a typewriter or other machine as described in the parent Specification, the tongues 4 which engage in slots in the rear of the machine and the fork-shaped seat 5 are made resilient so that the machine is held tightly during transport. Alternatively, additional resilient springs 6 and 13 may be fitted to the tongue carrying unit 2, and front latches 3 respectively.
Patent GB-243371-A (GB)
Title: Improvements in or relating to wireless receivers of the heterodyne type
IPC: H03J3/28
Filed: 1925-11-19
Abstract: 243,371. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Goldsmith, A. N., and Dyck, A. F. van). Nov. 20, 1924, [Convention date]. Coupling aerial and detector circuits; thermionic amplifiers and detectors; tuning apparatus, control of.-In a receiver of the heterodyne type the signals are passed through a filter before the local oscillations are superimposed upon them so that the required beat frequency can be obtained only with signals of the desired frequency. Fig. 3 shows a supersonic receiver in which the tuning condenser 22, the filter condensers 24, and the local oscillator condenser 28 are simultaneously adjusted. The output from the filter C is applied to an amplifying valve 25 the output of which is applied through condenser 27<1> to the grid of detecting and oscillating valve 26. The output of valve 26 is reflexed back through transformer 29 to the valve 25 for which the output is transformer 33. The filter C may be of the high-pass, low-pass or band type and the heterodyne frequency is so arranged that according as the filter is high-pass or low-pass this frequency is below or above the signal frequency so that an interfering signal which will produce the same beat frequency is cut off by the filter. In modifications separate and auto-heterodynes are employed to produce a beat note directly.
Patent GB-679432-A (GB)
Title: Luminescent electric discharge lamp
IPC: H01J61/35
Filed: 1950-11-29
Abstract: 679,432. Discharge lamps. LUMALAMPAN AKTIEBOLAG. Nov. 29, 1950 [Dec. 1, 1949], No. 29253/50. Class 39 (i). In discharge lamps having a fluorescent envelope insulating members extend along and around the feeders of the electrodes inside the envelope and have a U.V. reflecting coating such as aluminium, magnesium or zirconium oxide serving to reflect U.V. light on to the fluorescent coating, for transformation to visible light by the latter, to reduce shadows caused by the leads and insulating members. The insulating members may be a foot-tube 4 and a tube 9 mounted on the latter surrounding the leads to the far electrode 7 but not the electrodes 3, 7. The oxides also act as getters, reducing darkening of the envelope near the electrodes, and this gettering can be increased by adding a metallic getter such as zirconium or magnesium to the coating.
Patent GB-919049-A (GB)
Title: Improvements in dispensing containers for refrigerants
Inventor: NUSBAUM SIMON RICHARD
IPC: F17C13/08
Filed: 1960-08-25
Abstract: 919,049. Liquefied gas containers. PENNCO ENGINEERING CO. Aug. 25, 1960, No. 29381/60. Class 8(2). A cylindrical refrigerant dispenser 10, Fig. 1, having at one end 15 a needle valve 20 through which gas or liquid is discharged according to whether the dispenser is positioned with the end 15 uppermost or lowermost has a collar 25 extending axially of and secured to the dispenser body 10 and surrounding the valve 20 and having a lateral access opening 26, Fig. 3, and serving as a stand for the dispenser in its inverted position. The opposite end 14 of the dispenser has a cylindrical flange 23 with a rolled edge 24 contacting the floor and protecting a fusible safety plug 17. An aperture 28 in the collar 25 serves as a handle.
Patent GB-794192-A (GB)
Title: Improvements in or relating to drawing instruments
IPC: B43L7/027
Filed: 1954-10-12
Abstract: 794,192. Protractors. MIDULLA, B. Oct. 12, 1954 [Oct. 12, 1953], No. 29390/54. Class 97(3) A .drawing instrument has a straight side having a linear scale 1 and a cut out area one edge of which is marked with an angular scale 6 having the same markings and directed in the same sense as the scale 1, the centre 5 of the angular scale being marked on the instrument and being the mid-point of the hypotenuse of a right angled triangle which has the said straight side as one of its sides, the base line of the angular scale lying on the said hypotenuse and intersecting the straight side at the origin 3 of the linear scale. The instrument itself may comprise the said right-angled triangle, as shown, or it may be of any shape, preferably triangular, and the said right-angled triangle may not be completely within the instrument, it being necessary only for the hypotenuse and its centre 5 to be marked and the scale 1 to be one side of the instrument. Various other triangular instruments are shown. The scales 1, 6 are such that the length of an arc of the circle circumscribing the right-angle triangle, which. arc extends from the origin 3 to any radius through 5, is equal to the length of the side 1 from the origin 3 to a point thereon having the same marking as the value of the angle between the said radius and the hypotenuse as shown on the angular scale. The instrument may include a line 4 making an angle of 27‹ 35' 49" with the hypotenuse, which line is used for determining the length of the side of a square of area equivalent to the area of a given circle.
Patent GB-373917-A (GB)
Title: Improvements in or relating to combination pocket knives
IPC: B26B11/00
Filed: 1931-10-23
Abstract: 373,917. Pocket knives. LOUGE, J. M., Boulevard Poeymirau, Fez, Morocco. Oct. 23, 1931, No. 29507. Convention date, Oct. 28, 1930. [Class 30.] A combination pocket knife comprises a knife blade C, corkscrew L, capsuleremoving key A, and tin - opener G. The opener G is pivoted at F to the key A which is provided with pins K, K<1> one on each side to act as stops for the opener. A pivoted half-handle M is provided for use with the corkscrew. The tin opener is U-shape in section at J to enclose partly the key A, which is made with various curvatures to fit different-sizes of capsule, and with teeth D to grip the undersides of the capsules. A notch E in the key may be used for breaking wire.