baber/WOPTO huggingface dataset:
Patent GB-509613-A (GB)
Title: Improvements in electric signal amplifiers incorporating voice-operated devices
IPC: H04B3/20
Filed: 1938-01-20
Abstract: 509,613. Two-way transmission. RYALL, L. E. Jan. 20, 1938, No. 1852. [Class 40 (iv)] In a loud-speaking system with voiceoperated switching devices, break-in is permitted, but acoustic reaction prevented, by arranging that the output of the loud-speaker is deficient in low frequencies and that the switching devices which condition the transmitting path are responsive to the preponderance of low-frequencies present in actual speech. The deficiency in low-frequencies of the loud-speaker output may be due to such deficiency in the distant microphone which is natural in the carbon type and may be deliberately effected in, say, a moving coil type in order also to reduce the effects of room reverberation. The transmitting and receiving amplifier may as regards speech as distinguished from control paths favour the high frequencies and the loud-speaker may itself be deficient in low frequencies. The control path of the transmitting amplifier favours low frequencies. In the arrangement shown, which is similar in some respects to arrangements described in Specifications 415,767, 416,372 and 430,567, a bridge comprising resistances 13, 14 and valves 3, 8 of the transmitting and receiving amplifiers respectively, is adjusted so that normally the points 15, 16 are at the same potential and a small current flowing from 16 to 17 controls rectifiers 18-20 associated with a winding of the input transformer 7 of the receiving amplifier 3 and rectifier 24, 25 associated with a winding of the speech output transformer 5 of the transmitting amplifier 8, whereby the output transformer is effectively shunted and the input transformer is operative. Speech currents from the microphone are rectified in the secondary circuit of a control output transformer 4 and reduce the negative bias of the receiving valve 8 whereby the balance of the bridge is upset and current flows from 17 to 16 to cause the conditions of the input and output transformers to be reversed if the lowfrequency output of valve 3 predominates, transformer 4 feeding the rectifier being tuned to a low frequency. Speech incoming from the line is rectified at a secondary winding of transformer 9, another winding of which supplies the loud-speaker 10 and the rectifier current increases the effect of the normal current between 16 and 17. The rectifier load on the amplifying valves, in series with speech path load in case of amplifier 3 but in parallel in case of amplifier 8, gives rise to harmonic distortion in the speech paths and to minimize this effect, amplifier 3 is arranged for series negative feed-back over resistance 26 and amplifier 8 is arranged for parallel feed-back by means of a further secondary winding 23 of output transformer 9, whereby the outputs of the amplifiers are substantially independent of the load impedance of the associated rectified control-current supply circuits.
Patent GB-802259-A (GB)
Title: Device for the sink-float separation of minerals, e.g. coal
IPC: B03B5/42
Filed: 1957-01-18
Abstract: 802,259. Washing granular materials. KLOCKNER-HUMBOLT-DEUTZ A. G. Jan. 18, 1957 [Jan. 20, 1956], No. 1940/57. Class 82(2) A sink-float separator comprises a conical lifting drum rota'table about an inclined axis so that the portion carrying the drive means is above the level of the separating liquid. The lifting drum 2 is made up of two conical parts 14, 15 joined by an annular plate 16 the drive, by toothed rim 6 and a meshing gear, being above the level of the liquid. Lifting blades 19 are provided to evacuate the sinks via a shoot 20. A plate 21 is secured to the bottom end of the drum and may be of a conical form with its apex lying on the axis of the drum so that its top portion is vertical. A further plate 22 guides the floats to their discharge trough 5. An upward or a downward current is established in the pipe 3 to assist the separation. The positioning of the rollers 41, 43, to avoid end thrust, is fully disclosed. The complete circuit is shown in Fig. 8 according to which the floats separate out on a screen 46 and the medium is circulated by an air lift 49. Draw-off pipe 55 and an auxiliary supply pine 56 may be used to vary the flow conditions in the system.
Patent GB-307163-A (GB)
Title: A device for drying and airing articles of clothing, household linen and the like
IPC: D06F53/04
Filed: 1928-01-21
Abstract: 307,163. Sumner, B. Jan. 21, 1928. No Patent granted (Sealing fee not paid). Racks for light articles.-Clothes are dried by suspension from extensible closely wound rustless wire coils c or lengths of rubber fitted at the ends with hooks c engaging holes in legs a<3> on brackets A clamped to a mantelpiece.
Patent GB-733158-A (GB)
Title: Improvements in and relating to high tension magnetos
Inventor: MORTON CECIL JAMES
IPC: H02K21/38
Filed: 1952-01-24
Abstract: 733,158. ignition magnetos. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 3, 1952 [Jan. 24, 1952], No. 1985/52. Class 35. In an inductor type magneto the distances between alternate poles of the stator differ in arcuate length and the arcs through which the inductors subtend are so dimensioned that, in one angular position, the inductors overlap the stator poles, and in another angular position, one of the inductor polepieces overlaps the stator poles while the other inductor polepiece does not. Fig. 2 shows a magneto having stator poles C and a rotor having pole-shoes A and B of unequal arcuate lengths, so that in this particular angular position of the rotor, the pole-shoe B overlaps the upper tips of the stator poles C while the lower tips are not spanned at all by the rotor pole-shoe A. The purpose of the invention is to slow down the flux reversal.
Patent GB-192384-A (GB)
Title: Improvements in machines for removing burrs and other foreign substances from the wool or hair on the skins or hides of animals
IPC: D06G1/00
Filed: 1923-01-23
Abstract: 192,384. Perks, W., Turner, D. S., and Williamson, J. Jan. 24, 1922, [Convendate]. Skins, cleaning mechanically. - To remove burrs or other foreign substances from wool or hair on the skins or hides of animals, the skins with the wool &c. outwards are clipped in position in a cage rotating at a high speed on a vertical spindle 8, Fig. 2. The wool projects through the spaces between blades 10, and is knocked against a blade or comb 18 controlled by a handle 17;
Patent GB-1047891-A (GB)
Title: Improvements in or relating to rotating hydraulic machines such as pumps, turbines and turbine-pumps
IPC: B63H25/46
Filed: 1964-01-16
Abstract: 1,047,891. Axial-flow pumps; hydraulic turbines. SOCIETE GRENOBLOISE D'ETUDES ET D'APPLICATIONS HYDRAULIQUES. Jan. 16, 1964 [Jan. 19, 1963], No. 2059/64. Headings F1C and F1T. [Also in Division B7] A reversible hydraulic machine comprises a single or multi-stage axial-flow pump, turbine or turbinepump disposed in an elongated duct and having rotor and stator blades possessing symmetries of form or orientability to ensure identical characteristics for both directions of flow. The blades 22 of a pump impeller are rotatable about their axes of symmetry through an angle of, say, 40 to 70. degrees bisected by the axis I-I. Thus the direction of flow as well as its speed is controlled by the angular position of the blades 22. The outer casings 3, inner casings 5 and guide vanes 26 are symmetrically arranged about a plane perpendicular to the axis X-X. The angle of inclination of the end 28 of each guide vane 26 relative to the axis X-X decreases from the respective outer casing 3 to the respective inner casing 5 and it may be zero at the casing 5 or a negative value as shown. The inner casings 5 may house the driving motor or motors and the mechanism for rotating the impeller blades. In an alternative embodiment, Fig. 4a (not shown), the direction of rotation of the impeller is reversed to reverse the direction of flow, and the impeller blades are rotatable through an angle of, say, 20 to 35 degrees to one side of the axis I-I or otherwise rigidly secured to the impeller. Further, the impeller blades are of S-shape cross section and have rounded leading and trailing edges, and the guide vane ends adjacent and on one side of the impeller are inclined, with respect to the axis X-X in the opposite direction to those on the other side of the impeller, the angles of inclination of these ends increasing from the outer to the inner casings.
Patent GB-1531682-A (GB)
Title: Recording tape editing system
IPC: H04N5/7826
Filed: 1977-01-19
Abstract: 1531682 Automatic control SONY CORP 19 Jan 1977 [23 Jan 1976] 02132/77 Heading G3N [Also in Division G5] In an editing operation to replace part of a video signal on a slave tape T2 on a VTR (12), Fig. 1 (not shown), by a selected part of the signal on a master tape Ti on a VTR (11), VTR (11) isoperated in a slow search replay mode during which tape T 1  is moved forward until the start of the selected part has been passed, T 1  is reversed for a short length and then moved forward whilst watching a monitor (13) and a signal applied to open a gate 29 when the start of the selected part is observed so that the contents of an up-down  address counter 21, counting control pulses from T 1 , are stored in a cut-in memory 31. By a similar procedure the contents of counter 21 are stored in a cut-out memory 51 when the end of the selected part on T 1  is observed and then T 1  is reversed and VTR (11) is halted at a standby position a predetermined distance from the cut-in position on T 1  by means of a stop signal from a reverse counter 40. During reverse drive of tape T 1  the counter 40 starts counting the control pulses thereon when comparator 35 indicates coincidence between the contents of counter 21 and memory 21, and counter 40 issues the stop signal on reaching a pre-set count. The cutin address on the slave tape T 2  is similarly stored in memory 32 from address counter 22, and VTR (12) halted at a standby address on T 2  by means of a comparator 36 and reverse counter 41. A selector 48 allows the cut-out address in memory 51 to be determined from slave tape T 2  rather than master tape T 1 , and the cut-in addresses in memories 31, 32 can be corrected by two or three frames in either direction with the aid of correction pulse generators 60, 63. VTRs (11) and (12) are then simultaneously operated at normal playback speed starting from the standby addresses on T 1 , T 2  and VTR (12) is switched by the output of AND circuit 37 to record the output of VTR (11) when comparators 35, 36 detect coincidence between the contents of counter 21 and memory 31 and counter 22 and memory 32 respectively. VTR (12) is switched back to playback by the output of AND gate 55 when comparator 52 detects coincidence between the contents of cut-out memory 51 and address counter 21 or 22, as chosen by selector 53.
Patent GB-579149-A (GB)
Title: Apparatus for the manufacture of non-metallic collapsible tubes
IPC: B65D35/12
Filed: 1944-02-10
Abstract: <PICT:0579149/IV/1> A rigid, elongated, truncated, conical, drying mandrel 2 for supporting a wet tube 14 of regenerated cellulose gel &c. which shrinks on drying and conforms to the shape of the mandrel, has an air passage 3 therethrough which branches out at the top into a plurality of openings 7.  The function of the air passage is to facilitate the fitting of the wet tube on the mandrel and to remove the dried, shrunken tube from the mandrel, as described in Specification 579,137.  A protuberance 8 fits into and locates a threaded neck portion 10 which is to form part of a collapsable tube, the body of which is formed by the tube 14.  Instead of the protuberance 8, the top of the mandrel may be recessed to receive the neck 10.  The mandrel may be of wood, metal or moulded plastic.
Patent GB-188263-A (GB)
Title: Improvements in boxes for carrying electric lamps
IPC: B65D59/04
Filed: 1922-01-25
Abstract: 188,263. Stevenson, A. H. Jan. 25, 1922. Fittings, internal.-A cardboard or like box for carrying an electric incandescent lamp comprises a plain open-ended body portion 4 and two inverted caps 5, 6, inserted within the ends thereof, one cap 5 having a hole to receive the tip 7 of the lamp, or a depression to receive the lower part of the lamp, and the other cap being formed with a slotted opening 8 to accommodate the bayonet socket portion 10 of the lamp. One cap may be permanently secured to the body portion.
Patent GB-810162-A (GB)
Title: Wringer having automatic roll stop and pressure release
IPC: D06F45/18
Filed: 1957-01-22
Abstract: 810,162. Wringers. BEATTY BROS. Ltd. Jan. 22, 1957 [Feb. 10, 1956], No. 2241/57. Class 138 (2). The motor-driven wringer B (Fig. 1) of the washing-machine A, pivoted on the washing- machine post 17, incorporates a safety device so that if the operator instinctively attempts to withdraw a hand trapped between rolls 10 and 11, the slight pivotal movement of the wringer causes the pressure on the rolls to be released and the drive from the motor C to be disconnected by an automatic clutch. The wringer frame 9 is mounted on a rocker arm assembly 15 (Figs. 2 and 4) which is in the form of an inverted L, the top of which contains a hole to fit over the boss 31 (Fig. 3) thereby enabling the wringer to pivot with respect to the wringer head 16. Pressure is exerted on the rolls by spring 13 and adjusting screw 14 mounted on the cover 12 to which is pivoted an arm 45 containing a toggle 46 pivoted at 47 and a latch 48 which engages the end 49 of the spring loaded latch member 41 which projects through slot 42 in wringer frame 9 and which is pivoted on the wringer head 16. Pressure is exerted on the rolls by moving arm 45 inwards to engage latch 48 with the end 49 of latch member 41, and pressure is released by pivotal movement of the wringer frame which moves the latch 48 relative to latch member 41 until the latch is released. The rolls 10 and 11 can be rotated in either direction by engaging one or other of bevel gears 23 and 24 (Fig. 4) with gear 19 by the operation of clutch 25 accomplished by movement of the handle 28. Movement of handle 28 also operates cam 53 (Fig. 6) which depresses the spring-loaded index pin 51 to lock the wringer in position whilst the rolls are rotated. When a slight pivotal displacement of the wringer occurs, besides releasing the pressure on the rolls, the rocker arm 15, which is fixed to yoke 36 (Fig. 4) by bolts 37 and 38, causes either stop 39 or stop 40 to engage bellcrank 58 and move it upwards about its pivot point. This causes shift-pin 59 (Fig. 6) to push against part 61 of cam 53 and moves the cam so that handle 28 tends to assume a vertical position. After the cam 53 has moved a small distance, the action of spring 57 on index pin 51 causes the cam to take up the position shown in Figure 5, when the clutch 25 is disengaged and the rolls cease to rotate.
Patent GB-881535-A (GB)
Title: New saturated tricyclic ether compounds with an odour of the ambergris type
Inventor: ENNINGA ROBERT
IPC: C07D307/87
Filed: 1959-01-22
Abstract: The invention comprises saturated tricyclic ethers of the general formula <FORM:0881535/IV (b)/1> in which both the symbols R represent methyl or one represents methyl and the other hydrogen.  They may be prepared by cyclising a compound of formula <FORM:0881535/IV (b)/2> or <FORM:0881535/IV (b)/3> by heating in the presence of an acid dehydration catalyst and, in the case of a compound of the latter formula, catalytic hydrogenation of the double bond.  The diols used as starting materials may be obtained by condensation of myrcene with either citraconic or pyrocinchonic anhydride followed by cyclisation and reduction.  Alternatively, the diols may be prepared by treating a lactone of formula <FORM:0881535/IV (b)/4> or <FORM:0881535/IV (b)/5> with sodium and an alcohol.ALSO:Tricyclic ethers of general formula <FORM:0881535/VI/1> in which both the symbols R represent methyl groups or one represents methyl and the other hydrogen (see Group IV (b)), are used for perfuming materials or articles.
Patent GB-1487475-A (GB)
Title: Apparatus for distributing moving articles supplied as a single row amongst two parallel delivery paths
IPC: B65G47/71
Filed: 1975-01-20
Abstract: 1487475 Arranging rows of articles on a conveyer belt E BAUER 20 Jan 1975 [22 Jan 1974] 2405/75 Heading B8A Articles 2 in a single stream, are alternately diverted into two streams on a conveyer belt 4, by the action of reciprocating members 57. The latter are carried in guide sleeves 50, each end of which is secured to a respective endless member 48, 49. The reciprocation of the members 57 is brought about by the action of cam followers 52 running in cam tracks 53. The chains 48, 49, run at a slightly slower speed than the belt 4, so that the articles tend to back up against an adjacent member 57 having first been deflected laterally by the tip of the member as it starts its lateral movement. In a modification (Fig. 4, not shown), the guide sleeves 50 for alternate members 57 are carried on respective pairs of chains on each side of the conveyer belt 4. In another modification (Fig. 1, not shown) each member 57 is carried by the outer end of one arm of a bell crank shaped member. The pivot of the bell crank is connected to an endless chain corresponding to one of the chains 48, 49, of Fig. 2. The outer end of the other cam has a follower running in a cam track corresponding to the track 53. The apparatus may be modified so as to generate more than two rows of articles.
Patent GB-621836-A (GB)
Title: Improvements in or relating to radio gun control systems
Filed: 1944-02-10
Abstract: 621,836. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. Feb. 10, 1944, No. 2516. Convention date, Feb. 15, 1943. [Class 97 (iii)] [Also in Groups XXI, XXXV and XXXVIII] A stabilized radio tracking system, for use in gun-fire control apparatus, comprises a gyro element, a follow-up member positioned by said element, and means for receiving radiant energy from a target, such means being,posi. tioned in accordance with the position of the follow-up member, automatic means being provided which is responsive to the reception of the received energy and which is adapted to direct the gyro element towards the target. When an azimuth torque motor amplifier 46 is actuated as the result of a radio scanner being out of line with the target it operates torque motor 23 mounted about axis C-C on a housing or follow-up member 18. Housing 18 is supported by trunnions in a bracket 33 movable about axis B-B and within the housing is a gimbal ring 26 movable about axis C-C. The gyro 16, which spins about axis A-A, is carried by a frame 25 movable in ring 26 about axis B-B. Actuation of motor 23 causes the gyro to precess about axis B-B and the gyro carries with it, by means of a shaft 39 coincident with its spin axis, a second gimbal ring 35 carrying the armature 55 of an E-transformer type pick-off device 19. The output voltage thereby induced across the conductors 53, 54 actuates an amplifier 21 which causes a servomotor to actuate, through gearing as shown, the housing 18 until armature 51 is restored to its neutral position. Similar means are employed for applying torque to the gyro about axis B-B and for causing the frame 18 to follow the resulting movements of the gyro when the scanner is out of line with the target in elevation.
Patent GB-729132-A (GB)
Title: Process for the preparation of hydroperoxides
Inventor: FENOGLIO MAURICE
IPC: C07C409/08
Filed: 1952-01-30
Abstract: Hydroperoxides of aliphatic-aromatic hydrocarbons which consist of an aromatic nucleus containing as sole substituent(s) at most two aliphatic groups, each containing at least two and not more than six carbon atoms, are prepared by subjecting said hydrocarbons in the liquid phase to treatment with oxygen at elevated temperature in the presence of formaldehyde.  Specified hydrocarbons are cumene, di-isopropyl benzene, iso-butyl benzene, ethyl benzene and cyclohexyl benzene, and the oxidation may be effected with pure oxygen or an oxygen-containing gas.  In examples (1) cumene is treated with oxygen (a) without, and (b) with 0.3 per cent formaldehyde to yield cumene hydroperoxide; (2) cumene with various initiators (cumene hydroperoxide, caustic soda solution, phenol, sodium formate) is oxidized in the presence of formaldehyde to cumene hydroperoxide; (3) isobutyl benzene containing phenol, cumene hydroperoxide and caustic soda is oxidized as in (1) to the hydroperoxide; (4) cyclohexyl benzene similarly yields cyclohexyl benzene hydroperoxide.
Patent GB-1187692-A (GB)
Title: Sine-Cosine Generator Comprised of a Diode Array
Inventor: BURNETT GERALD JAY
IPC: G06F1/035
Filed: 1968-01-17
Abstract: 1,187,692. Sine or cosine generator; electric selective signalling. NORTH AMERICAN ROCKWELL CORP. 17 Jan., 1968 [23 March, 1967], No. 2616/68. Headings G4A and G4H. A sine or cosine generator comprises a diode matrix having input conductors connected to output conductors by a fixed pattern of diodes, the input conductors corresponding to different angles and the output conductors corresponding to different sine or cosine values, the arrangement being such that, selective energization of an input conductor or combination of input conductors corresponding to a given angle results in signals appearing on those output conductors which together correspond to the sine or cosine value for the given angle. Analog data, from, for instance, inertial instruments in an autonavigator is fed to a computer where it is converted to digital data. The data formed is fed to a # generation logic 8 (Fig. 2) and to a decoder. The decoder, a matrix of semi-conductor diodes on an insulating substrate, is composed of three portions, a decoder, a sin # i  portion and a # # cos # i  portion. To obtain the sine of an angle # sines corresponding to specific angles # 1 , # 2 , # 3  ... # n  are stored in the decoder and a correction factor # # cos # i  is added to the stored results for all angles differing from the predetermined values since sin # = sin (# i +# #) = sin #+# # cos # i  for small # #. The correction factor # # cos # i  is small and does not require much storage space. The angle # i  is applied to the matrix decoder, for instance the value of 1100 radians is applied in Fig. 3. The sin # i  portion is enabled by signal T 1  and one output line is energized giving 1000000 as the sine. Signal T 1  and the # generation logic enables the appropriate line in the # # cos # i  portion to produce a binary number which is added to the sin # i  number in register and adder 6. The number is then converted to an analog signal which is compared with the signal from the inertial instrument to produce an error signal correcting the position of the instrument involved.
Patent GB-236247-A (GB)
Title: Improvements in the preservation of milk and other liquids suitable for food
IPC: A23C9/152
Filed: 1924-02-01
Abstract: 236,247. Heyerdahl, P. M. Feb. 1, 1924. Preserving milk &c.-Milk, fruit juices, and other non-oily liquid food products are preserved by subjecting them to reduced pressure to remove dissolved air, and then spraying them into an inert gas, such as carbon dioxide alone or mixed with nitrogen, preferably under a pressure of 2 atmospheres. The liquids are afterwards heated, say, to 69‹ C., and stored in sterilized vessels. Specification 207,551 is referred to.
Patent GB-717522-A (GB)
Title: Improvements in or relating to a coil member for tuning devices
IPC: H01F21/06
Filed: 1950-06-28
Abstract: 717,522. Inductors. AUTOMATIC MANUFACTURING CORPORATION June 28, 1950 [June 28, 1949], No. 2632/52. Divided out of 717,491. Drawings to Specification. Class 38(2) [Also in Group XXII] The subject-matter of this Specification is similar to that of the original Specification 717,491, [Group XXII], but the claims are directed to the stamped coil structure.