baber/WOPTO huggingface dataset:
Patent GB-528819-A (GB)
Title: Improvements in or relating to secret communication systems
IPC: H04J3/04
Filed: 1939-05-15
Abstract: 528,819. Secret transmission. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 15, 1939, No. 14503. Convention date, June 21, 1938. [Class 40 (iv)] [Also in Group XL] In a wireless or other carrier transmission system, the low-frequency signals take the form of a series of indexing impulses of supersonic frequency with two or more series of intermediate impulses dependent on the audio signals and having different phase relationships. In the transmitter shown in Fig. 1, the audio signals are applied to a pair of pentagrid valves 11, 13 connected in push-pull. A generator 23 of rectangular waves of supersonic frequency feeds in,to a delay network 25 of which various points are connected to grids of the valves 11, 13 and of a third pentagrid valve 47, so that they are rendered operative in turn. The valve 47 transmits an impulse of uniform amplitude, and the valves 11, 13 transmit successive impulses whose amplitudes are dependent on the instantaneous values of the signal voltage in opposite phases. In the receiver shown in Fig. 3, the low-frequency signals are applied to a diode rectifier 101 which is biassed to pass only the peaks of the index impulses and which feeds through an amplifier 107 a delay network 109 similar to that at the transmitter. The outputs of the network 109 serve to render a pair of pentagrid valves 83, 85 operative insynchronism with the valves 11, 13 at the transmitter. The Specification as open to inspection under Sect. 91 comprises also a similar arrangement used for multiplex transmission, the valves pertaining to the various channels being rendered operative in succession by the outputs from the delay network. Artificial signals may be sent over any channel not in use. This subject-matter does not appear in the Specification as accepted.
Patent GB-388614-A (GB)
Title: Improvements in carding devices for artificial teeth
IPC: A61C19/10
Filed: 1932-05-21
Abstract: 388,614. Displaying artificial teeth. DEHN, F. B., 103, Kingsway, London. -(Universal Dental Co. ; 48th Street, Philadelphia, U.S.A.) May 21, 1932, No. 14507. [Class 3 (ii).] A carding-device for the display of artificial teeth comprises a panel 10 of wood, fibre, or other non-metallic material formed with an undercut longitudinal groove 11 into which slide interchangeable metal bars 12 having stamped-out tongues 13 for the reception of the artificial teeth. Recesses 16 are provided into which tabs 17 bearing indicia referring to the characteristics of the displayed teeth are inserted.
Patent GB-1496053-A (GB)
Title: Hydrostatic transmission system for vehicles
IPC: B62D53/02
Filed: 1975-04-09
Abstract: 1496053 Hydrostatic transmissions CLARK EQUIPMENT CO 9 April 1975 [12 April 1974] 14612/75 Heading F2W In a hydrostatic transmission a variabledisplacement pump 30 supplies, via a flow divider 62, motors 24 and 26 on each side of a vehicle, the flow from each pair of motors being combined in a flow divider (or combiner) 58 or 60 which maintains substantially equal flow rates through its associated motors 24, 26, and this flow returning to pump 30, The direction of flow is reversible. The flow divider (or combiner, depending on the direction of flow) 62 is connected to the steering, shown as a centre pivot 18, to differentially adjust the motor speeds on each side of the vehicle, the vehicle being steered by rams 20, 22. A pump 50 compensates for leakage. The pump 30 is adjusted by push-pull cables from a pedal (Figs. 2 and 3, not shown). There may be more than two motors on each side of the vehicle.
Patent GB-1346681-A (GB)
Title: Method of flanging the necks of bottles made of thermoplastic material
IPC: B29C57/00
Filed: 1971-05-13
Abstract: 1346681 Shaping bottle neck METAL BOX CO Ltd 13 May 1971 [13 May 1970] 14714/71 Heading B5A The neck 2 of a thermoplastic bottle, e.g. of polyvinyl chloride, is rolled inwardly to form a flange, Fig. 4, and is simultaneously sized accurately by means of a heated punch 1 associated with a cooling gauge 5 having a profile 5a, 5b, 5c which corresponds to that of the finished flange and which cools and sets the rolled over portion of the neck. The punch has an end 1a with a shoulder 1c which engages the edge 2a and turns it inwards, the further entry of the punch into the neck effecting a sizing and shaping of the narrow portion 2b (Fig. 4). The punch is heated by an electric element 3 the temperature being regulated by a probe 4. The cooling gauge is cooled by water in a circuit 5d. The assembly is lowered and raised by any conventional means and the punch and gauge are separated slightly, as shown, between cycles either by gravity or spring loading.
Patent GB-1185522-A (GB)
Title: 00,5-(Iminomethano)-10,11-Dihydro-5H-Dibenzo [a,d]Cycloheptene and Derivatives
IPC: C07D471/08
Filed: 1967-03-31
Abstract: 1,185,522. Pharmaceutical and pesticidal compositions. AYERST, McKENNA & HARRISON Ltd. 31 March, 1967 [4 April, 1966; 24 May, 1966; 29 July, 1966; 31 Aug., 1966], No. 14743/67. Headings A5B and A5E. [Also in Division C2] Pharmaceutical compositions comprise as active ingredient a compound of the general formula I: in which Z represents one of: and R and R<SP>1</SP> (which may be the same or different) each represents H, C 1 -C 4  alkyl, allyl, C 7 -C 10  aralkyl which may be substituted, C 4 -C 9  dialkylaminoalkyl, a heterocycloalkyi group having 5-8 carbon atoms and 1 or 2 heteroatoms, C 2 -C 4  aliphatic acyl, C 7 -C 10  aroyl which may be substituted or C 8 -C 12  aralkanoyl which may be substituted and R<SP>11</SP> represents C 1 -C 4  alkyl, allyl, phenyl, C 7 -C 10  aralkyl which may be substituted or a C 5 -C 9  dialkylaminoalkyl group or physiologically tolerable salts thereof and a pharmaceutical excipient such as starch or lactose. Certain structures are stated to be associated with specific activities. The compound 12-methyl-10, 5-(iminomethano)-10, H-dihydro-5H-di-benzo [a, d] cycloheptene is especially stated to have marked activity in the paw-oedema assay. Various types of formulation are specified. Pesticidal compositions comprises as active ingredient a compound of the general formula I in which Z is #CH 2 , and an inert carrier such as water. The compositions are stated. to be effective against the horse strongyle parasite and other members of the family strongylidae such as hookworms, trichostrongylidae and metastrongylidae.
Patent GB-594464-A (GB)
Title: Improvements in or relating to transmissions for driving the sustaining-rotor of a helicopter
IPC: B64C27/12
Filed: 1944-08-02
Abstract: 594,464. Toothed gears; friction and ratchet clutches. BORG-WARNER CORPORATION. Aug. 2, 1944, No. 14762. Convention date, July 14, 1943. [Classes 80(i) and 80(ii)] [Also in Group XXXIII] Gearing, for driving the sustaining and control rotor of a helicopter, comprises a housing 10, enclosing a countershaft speed-reducing g e a r having vertical aligned input and output shafts 13, 14, the latter carrying the sustaining rotor; a power take-off bevel 47 driving the controlrotor and other auxiliaries and driven by a bevel 46 either on the output shaft 14 or on one countershafts 22 of the gear; and an automatic hydraulically-actuated multi-disc friction clutch 27, with speedresponsive and manual control, between the input shaft 13 and the driving pinion 17 of the gear, and serving to disconnect the input shaft from the gearing in the case of power failure to permit both rotors to continue rotating for safe descent without driving the engine. In addition a oneway positive clutch, 26 of the screwactuated facially-toothed type, may be arranged between the final driven element 25 of the gear and the output shaft 14, to permit the rotors to overrun automatically in the event of failure in either the engine or gearing, and a brake (not shown) may act on the gear driven-element 25 to prevent backward rotation of the rotor. The reducing-gear comprises stepped wheels 23, on fixed countershafts 22, meshing the input pinion 17 and a final driven ring- gear 25. The friction-clutch 27 is engaged by oilpressure acting on a piston 34 and supplied by a gear-pump 48, on the input-shaft 13, which draws oil through a filter 53 from a sump 52 and supplies it to the hollow interior of the shaft 13 and thence, through a port 69 to the clutch-operating chamber 33. Below a predetermined speed, the clutch - chamber 33 is directly vented through a port 71 so that clutch-engaging pressure cannot build up. Above that speed, a spring-loaded valve 72 is moved outwards centrifugally, to close the vent 71 and allow clutch engagement. For manual operation the clutch-chamber 33 can also be vented by a manual valve 75 communicating with the interior of the shaft 13 through ducts 60, 56. The one-way clutch 26 comprises driving and driven jaw-clutch members 37, 40, the latter of which is mounted on a helical spline 42 on the driven shaft 14. The faces of the clutch teeth are inclined, as shown, to ratchet under spring-pressure 45 until synchronised. Lubrication of the gearing is effected by the clutch-actuating pump 48, which also pressurises an annular space 59 supplying through passages 60, the hollow fixed countershafts 22, which feed the bearings and gear teeth through ports 62, 63. The one-way clutch 26 receives oil which passes through a spring-loaded relief-valve 64 in the shaft 13, into the hollow spigot of the driven shaft 14 and thence through ports 82, 83 to the clutch-teeth and also to a reservoir formed by a cover 85 on the bevel-wheel 46.
Patent GB-1464850-A (GB)
Title: Shut-off valve for high and very high pressures in particular for high pressure spray guns
IPC: F16K31/383
Filed: 1975-04-10
Abstract: 1464850 Valves WOMA-APPARATEBAU WOLFGANG MAASBERG & CO GmbH 10 April 1975 [18 May 1974] 14774/75 Heading F2V [Also in Division B2] A shut-off valve for a high-pressure spray gun has a main closure member 1 held on a seat 6 about the outlet 5 by the fluid pressure in chamber 7 which is connected to the inlet 4 by a throttle path 11 around the piston portion of the closure member 1. The chamber 7 is vented to the outlet 5 via a passage 12 when a pilot valve 8 is opened by a trigger 15 acting on a push rod 16, the inlet pressure acting on the closure member 1 thereby moving it off its seat 6. The pilot valve may be shaped as a piston, ball, cone, cylinder or flat. The valve 8 and rod 16 may be integral.
Patent GB-185807-A (GB)
Title: Improvements in strainers for milk and other liquids
IPC: A47J43/22
Filed: 1922-02-23
Abstract: 185,807. Clare, W. P. R., and Clare, A. J. Feb. 23,1922. Filters or strainers having sheet filtering or straining materials; funnel filters or strainers.- In a filter or strainer for milk or other liquid of the kind in which two members b, c telescope together and grip between them a fabric or like medium e, the members b, c are of spun, pressed, or stamped metal, and the member c tapers slightly and has a domed perforated base d and an upper lip f curved inwardly to form a splashguard.
Patent GB-671285-A (GB)
Title: Improvements in or relating to television receiving apparatus
IPC: H04N3/223
Filed: 1950-06-14
Abstract: 671,285. Television. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 14, 1950. [Aug. 18, 1949], No. 14836/50. Class 40 (iii). A cathode-ray tube television receiver is provided with means for adjusting the scanning generators to vary the screen area occupied by the picture and for simultaneously adjusting a masking device so as to cover that portion of the screen not occupied by the picture. The arrangement for adjusting the scanning generators is shown in Fig. 1 and comprises a two-position switch 24 the pairs of contacts 26, 27; 28, 29 and 30, 25 of which, when shorted by means of the contact elements 31, 32, 33, reduce, or short circuit, resistances 76, 91 and 60 in the frame and line scanning circuits which are of such magnitude that the raster which, in the switch position shown in the drawing, is of normal rectangular shape and of area less than that of the screen 22, is unformly expanded so that the screen is completely filled, the picture having the same aspect ratio in each switch position. Figs. 2 and 4 show the arrangement of the marking device which comprises a first masking member 122 rigidly secured to movable side members 123, 124 and a second masking member 125 pivotally attached to a pair of crank arms 127 which are pivotally attached to a fixed frame member 116 and to the movable side members 123, 124 so that vertical movement of the latter members, which is effected by operation of the switch 24 (Fig. 1) via a crank arm 133 rigidly attached to shaft 23 of switch 24 and pivotally attached to member 124, causes the masking members to occupy either of the positions shown in Figs. 2 and 4, the former corresponding to normal picture presentation and the latter to the expanded presentation.
Patent GB-514912-A (GB)
Title: Improvements in or relating to the manufacture and application of synthetic rubber-like materials
IPC: C08F236/16
Filed: 1938-05-18
Abstract: 514,912. Vulcanizing compositions. ANDERSON, J. G., HILL, R., MORGAN, L. B., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 18, 1938, No. 14874. [Class 70] [Also in Group IV] Synthetic rubber-like materials made by co-polymerization of 1 : 3-butadiene or 2- chlor -1 :3 butadiene, or a methyl or dimethyl derivative of either, and a saponifiable derivative of a-chloracrylic acid, are compounded with filling and reinforcing ingredients, e.g., carbon black and zinc oxide, and cured or vulcanized by subjection to a heat treatment, if desired in the presence of sulphur and natural rubber vulcanization accelerators. In examples, (1) the product from 1 : 3-butadiene and a-chloracrylonitrile is mixed with gas black, stearic acid, sulphur, mercaptobenzthiazole and zinc oxide and cured by heating to 141‹C., (2) the product from 2-chlor- 1 : 3- butadiene and methyl alpha-chloracrylate is mixed with calcined magnesia, wood rosin, and antioxidant (condensation product of acetaldehyde and alpha- and #-naphthylamine), cotton seed oil, channel black, sulphur and zinc oxide and cured, and (3) the condensation product from 2-chlor-1 3-butadiene and methyl or n-butyl alpha-chloracrylate is mixed with wood rosin, mineral oil, chlorinated naphthalene, carbon black, blanc fixe, catechol and litharge and cured.
Patent GB-908955-A (GB)
Title: Improvements in and relating to electrical distribution systems
Inventor: ROBERTS ROBERT SYDNEY
IPC: H04H20/63
Filed: 1960-04-28
Abstract: 908,955. Distributing music &c. WOLSEY ELECTRONICS Ltd. May 30, 1961 [April 28, 1960], No. 14917/60. Drawings to Specification. Class 40 (4). In a wired distribution system a received a.m. carrier is demodulated and the signal used to frequency modulate a locally generated carrier, the frequency modulated carrier being applied to the distribution network. The system may be used for the distribution of signals received from television transmissions in Bands I and III, from frequency-modulated transmissions in Band II, and those derived from further amplitude modulated signals to commercially available television - frequency modulation receivers. These latter amplitude modulated signals are demodulated and remodulated on a local carrier using a reactance valve/oscillator combination to produce frequency modulated signals in Band II which are fed to the network together with the frequency modulated signals received in Band II and the amplitude modulated signals received in Bands I and III. When long feelers are used it is preferable to convert the Band III signals to Band I channels not otherwise in use, as described in Specification 908,602. Additional audiofrequency signals other than those obtained from demodulation of amplitude modulated signals may be applied to the modulators to provide extra sound programmes.
Patent GB-809026-A (GB)
Title: Weftless tape formed of fibrous filaments united by adhesive
IPC: D04H3/12
Filed: 1955-05-24
Abstract: 809,026. Fabric made of adhesively bonded threads. KARASS, T. J. May 24, 1955 [May 26, 1954], No. 14976/55. Class 140. Flexible weftless tape comprises a single ply of juxtaposed parallel threads of fibrous textile material bonded together by a water-soluble polyvinyl alcohol such that a 4 per cent aqueous solution has a viscosity of 25 to 65 centipoises at a temperature between 140‹ and 180‹ F. and applied from a solution having a concentration of from 10 to 20 per cent by weight. The polyvinyl alcohol adhesive may contain a plasticizer, a fungicide or a wetting- agent. Specified fibrous materials are glass, asbestos, linen and synthetic linear polymers. As shown, in Figs. 3 and 4, a supply creel 10 comprises bobbins 12 whence fibrous strands 4 are led through comb 16 and through adhesive containing tank 14, passing over guiding elements 18 and 24, which are each provided with two arcuate concave recesses, whereby the strands are formed and compacted into two separate tapes which then pass between pressure rolls 28, 30 and 32. The tapes are thence fed over guiding plate 36 to drying drum 40 and tapering driven drum 100 about whose surfaces they are wound in a continuous spiral and are withdrawn at the opposite end of the drums, passing then over guiding plate 50 and between finishing roll 52, and 54 and being finally wound on bobbins 60 and 62. The web may be passed through corrugating rollers or may be printed.
Patent GB-1342926-A (GB)
Title: Optical system
IPC: G03B27/52
Filed: 1971-05-14
Abstract: 1342926 Optical projection systems; ADDRESSOGRAPH MULTIGRAPH CORP 14 May 1971 [18 May 1970] 15056/71 Headings G2A and G2J In a photocopier, the optical projection system comprises a lens system 52 adjustably mounted to have its optical axis 92 perpendicular to object plane 16; a mirror system having two mirrors 72, 78 which are positioned with a preselected angle a there between before insertion into the photo-copier; means mounting the mirror system in the photo-copier so as to reflect the optical axis 92 to be normal to image plane 28; and said mounting means including means to move the mirror system parallel to the bisector 94 of the angle b between normals to the planes 16, 28 so as to correctly focus the image formed by the projection system. In use, mirror support casting 64 is placed in an optical jig and screws 82 are adjusted to give the desired angle a. The angle a is such that, on positioning the casting 64 on a primary support casting 36, screws 88 can angularly adjust the position of the mirror system to properly reflect the optical axis 92. Casting 36 also carries a lens plate 42, the position of which may be adjusted by screws 44 to accurately position the lens optical axis perpendicular to the plane 16. In order to obtain optimum image resolution, the screws 88 are used to adjust the casting 64 linearly along the bisector 94. If the magnification ratio is not important, no further adjustments are necessary. However, if a definite magnification ratio is required, the lens system 52 is moved along its optical axis 92, and the mirror system is then re-adjusted along the bisector 94.
Patent GB-200655-A (GB)
Title: Paper creasing devices for use with cigarette packing machines
IPC: B65B19/22
Filed: 1922-05-29
Abstract: 200,655. Molins, W. E. May 29, 1922. Creasing. - Machines such as described in Specification 165,891, [Class 94 (i), Packing &c.], for packing cigarettes into an inner wrapper of foil, paper, or other thin material, previous to inserting them into a carton or packet, are provided with a pair of creasing-rollers to crease the wrapping-material along the fold lines so that the folding means may fold the wrapper round the cigarettes without crushing their ends. The wrapping-material is passed down between a roller 3 which mav be of rubber and a metal roller 7 fitted with creasing-blades 16 whereby the material is creased along the lines 21, Fig. 3. The roller 3 is loose on its spindle 4, the latter being driven by a bevel pinion 5 and having a rigid pinion 14 gearing with a pinion 13 fast on the spindle 12 of the roller 7, which is also loose on its spindle and adjustably connected to a quadrant 15 secured to the spindle 12. The bearings 8 supporting the roller 7 are carried in a bracket 9 pivoted at 10 to the framing and held in working position by a latch 11. In addition, an embossed pattern may be provided on the creasing-roller to emboss the wrapping-material with any desired name or pattern. Specification 18552/03 is also referred to.
Patent GB-1039342-A (GB)
Title: Improvements in or relating to decoding equipment
Inventor: BARBER DONALD ROBERT
IPC: H04B14/04
Filed: 1963-04-17
Abstract: 1,039,342. Selective signalling systems. STANDARD TELEPHONES & CABLES Ltd. April 10, 1964 [April 17, 1963], No. 15070/63. Heading G4H. A digital-to-analogue converter produces an output voltage representing a ten-bit binary signal from a six-bit contracted floating point representation. If the most significant 1 of the 10-bit number is in the most significant position of that number, the exponent is represented by binary 7, and for other positions the exponent is correspondingly less, taking the value zero when the most significant 1 is in one of the three least significant positions of the 10Àbit number. The remaining three bits of the floating-point representation are the three bits of the 10-bit number which follow the most significant 1 except when the exponent is zero, in which case the three least significant bits of the 10-bit number are all used. Bits 5-7 representing the numerical part selectively open gates 15, 17, 18 supplied by binaryweighted constant current sources. A further gate 14 is opened by the exponent bits 2-4 whenever the exponent is non-zero. The input to amplifier 11 is also weighted in accordance with the exponent by means of a binary to decimal converter 26, gates 27-34 and resistors 19-25 which are weighted 8, 16 . . . 512. Resistor 19 is assigned a weight of 8 because the exponent takes values 0-7 rather than 0-10. Amplifier 11 produces equal positive and negative outputs, either of which may be selected by gate 12 in accordance with an additional bit (1) representing the sign.
Patent GB-311770-A (GB)
Title: Improvements in devices for cutting sheet glass
IPC: C03B21/02
Filed: 1929-05-14
Abstract: 311,770. Naamlooze Vennootschap Maatschappij tot Beheer en Exploitatie van Octrooien. May 16, 1928, [Convention date]. Cutting or dividing ; rolling.-Relates to apparatus for cutting sheet glass while it is still plastic and while lying on the tables which receive it from the rolling-apparatus to transport it to a leer. According to the invention, a single rotary cutting-disc a, movable across the table, co-operates with bars i, h, attached to the adjacent edges of consecutive tables l<1>, l, respectively, supported in the gap between the tables. The disc a is mounted in a frame d which is loaded with weights c and is moved to and fro by a bar b. The frame is kept in an upright position by means of rollers f which run in a grooved rail g. The edge of the disc a is bevelled, and the bevelled portion a<1> rests on the bar i. The weight of the frame c causes the disc to be pressed into close contact with the bar h and a smooth shearing-action is ensured. If the cut is to be made while the tables are moving, known means are used for carrying the frame c along with the table.