baber/WOPTO huggingface dataset:
Patent GB-591340-A (GB)
Title: Improvement in quick release harness
IPC: B64D17/22
Filed: 1945-05-31
Abstract: 591,340. Parachute harness. CLEVELAND, F. J. (Pioneer Parachute Co. Inc.). May 31, 1945, No. 13725. [Class 141] A quick-release parachute harness has a chest piece releasably connected to the lift webs and provided with releasable locking means for connecting the leg straps to the lift webs. The harness is of sling construction and includes a seat strap 2 and lift webs 4 and 6 extending to the back pack 8. Leg straps 18 and 20 are attached to the seat strap 2 and are provided with connecting elements 22 and 24 formed with openings 34 adap'ed to fit over tapered studs 36 on connecting elements 26 and 28 on the lift webs. The lift webs are also provided with similar connecting elements 38-40. A chest piece 50, Fig. 2, has a base 52 extending across the chest from one lift web to the other and from the lower connecting elements 26 and 28 to the upper connecting elements 38 and 40, and is provided with spring-pressed detents 54, 56, 58 and 60 to engage the connecting elements. The chest piece may be applied to the harness by snapping the upper detent 54 on to the connecting element 38 on life web 4 and detent 56 on to element 40 on lift web 6. The connecting elements on the leg straps are applied to the studs 36 on the elements 26 and 28 and the lower spring-pressed detents 58 and 60 are snapped into place. An emergency pack may be secured to the chest piece. The detents are actuated by means of a plate 94 secured to the base 52 and formed with pivot pins 98 about which levers 100 are pivotally movable. One end of each of the levers 100 is connected by a cord 102 to the upper detents 54 and 56. The opposite ends of the levers 100 are connected by the cords 104 to the inner end 106 of an operating handle 108. The cords 104 are looped over the inner end of the handle and are attached to the detents 58 and 60. By pulling the handle 108, the detents are withdrawn and the chest piece released. By changing the lengths of the arms of the levers 100 on each side of the pivot pins 98, the detents may be withdrawn consecutively. A cover member 114 protects the detents from damage. The chest piece may be permanently attached to one of the lift webs near the shoulder. In a modification, the levers 100 are omitted and the device is actuated by cords only. In a further modification, a circular plate is pivoted to the base for rotation and links extend from the detents to the periphery of the plate. A handle is so mounted that on pushing it over, the plate is rotated and thus the detents withdrawn. In a further modification, the detents are replaced by hooks held in locking engagement by india-rubber strands and cords are attached to serve as the releasing handles.
Patent GB-681041-A (GB)
Title: Frameworks
Inventor: HUNT ALFRED CHARLES
IPC: B65D61/00
Filed: 1950-06-01
Abstract: 681,041. Packing. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 10, 1951 [June 1, 1950], No. 13766/50. Class 94 (i) A packing device comprises a framework of rigid members secured one to another by jointing members of flexible material. The framework shown comprises twelve aluminium-alloy tubes 1 interconnected by spherical rubber jointing members 2 each having three radially-extending bosses 3 in which the ends of the tubes are secured by hose clips 4. Cross-members 5 and 6, of channel cross-section, extend between each pair of parallel tubes and are connected at their ends by single bolts 11-14 to saddle clips 7-10 on the tubes so that they do not impede the distortion of the framework to any marked degree. Each cross-member carries a sponge-rubber pad 15 bearing against a thin metal container 16, made in two sealed parts 17 and 18, which encloses a rigid framework supporting the article. The open sides of the outer framework are closed by wire gauze panels 19.
Patent GB-1480540-A (GB)
Title: Longitudinal rolling bearings
IPC: F16C29/00
Filed: 1975-04-03
Abstract: 1480540 Bearings W SCHAEFFLER and G SCHAEFFLER 3 April 1975 [3 April 1974] 13766/75 Heading F2A A rectilinear motion recirculating roller bearing assembly for mounting a part on a plane running surface comprises cylindrical rollers 6 secured by retaining elements 8 provided between successive pairs of rollers and engaging in encircling grooves at the edges of the roller raceway, each retaining element being rigid in itself and retaining a pair of rollers captive, and successive retaining elements resting loosely against one another without any mutual connection. The elements 8 may engage in the grooves by way of side projections 12. The projections may have guide surfaces which co-operate with the grooves in such manner that the rollers are lifted away from the raceway on entry into the deflecting section. The end faces 9 of the elements 8 may be coated with nylon or PTFE.
Patent GB-1045116-A (GB)
Title: Lens blank periphery forming machine
IPC: B24B9/14
Filed: 1965-04-01
Abstract: 1,045,116. Grinding; copy-milling. KIRK OPTICAL LENS CO. Inc. April 1, 1965 [June 29, 1964], No. 13834/65. Headings B3B, B3D and B3K. A method of forming the periphery of a lens blank with a rotating grinding or cutting tool 32, Fig. 3, having a continuous shoulder 38, Fig. 7 (not shown), at one axial end thereof comprises rotating the blank relative to the rotating tool, and applying a biasing force between the blank and tool to cause the shoulder to abut one face of the lens blank, whereby a V-shaped groove on the tool forms a ridge on the periphery of the blank, the ridge being at a constant distance from the abuttal face of the blank at all circumferential points of the blank regardless of any undulations in the blank. In apparatus for carrying out the method, the tool may be of abrasive or have a plurality of steel cutting flutes 34 and the shoulder 38 is of brass pressed on to the tool, the shoulder extending a distance 39 of 0.003 inch above the surface of the tool. The tool is secured to a collar 26 mounted on the shaft 20 of a motor 16 and a spring 14 engages a groove 30 in the collar to bias the tool towards the motor, the shaft 20 having axial play. The lens blank 108, which may be of glass or plastic, is mounted in a holder 50, Fig. 6 (not shown), consisting of a rubber element 94 on a table 84 secured to a hub 60 which supports a bearing 66 and is secured through a collar 56 to a disc 52. A yoke element 68 is mounted on the bearing 66 and has bifurcated legs 70, 72. An arm 76, which is pivotally mounted on leg 72 and can be secured to leg 20 by a pin 80, carries a screw 96 on the end of which is a bearing 100, the outer of which is disposed in a sleeve 104 recessed at one end to receive a rubber-like washer 106. The blank can be aligned with its optical centre 112 coaxial with the element 94 and with an erasable line 120 coincident with an indicia 88 on the table 86 and held there by engaging the arm 76 in the leg 70 and screwing the washer 106 against the blank. A template 112 conforming to the desired finished profile of the blank can be secured on aligning pins 62 on the hub 60 so that when the holder is fitted with the element 68 and disc 52 embracing an upstanding flange 44 on the base of the machine and the collar 56 engaged in a slot 48, Fig. 5 (not shown), in the flange, the template engages a vertically adjustable pin 120 to control the grinding or cutting of the periphery of the lens as it is rotated by manual engagement of the disc 52. Continuous rotation of the element 68 is prevented by a pin 69 engaging the flange 44, the bearings 66, 100 permitting rotation of the disc 52 and lens blank. During profiling, the periphery of the lens blank is engaged with the V-groove of the tool, the spring 40 urging the shoulder 38 against the face of the blank. In another embodiment, the spring 40 is replaced by a coil spring which also transmits torque from the motor shaft to the tool.
Patent GB-696396-A (GB)
Title: Improvements relating to boxes
Inventor: FINCH ROBERT HARLEE
IPC: B65D5/50
Filed: 1951-06-12
Abstract: 696,396. Cartons. BRITISH THOMSONHOUSTON, CO., Ltd. March 10, 1952 [June 12, 1951], No. 13895/51. Class 18 A carton for holding a lamp bulb &c. has extensions 4, 5 of two sides 2 apertured and creased to form supports for the bulb. Sides 2, 3 are folded up about the base 1 and the extensions turned inwardly to engage flaps 6 to hold the carton erect. The bulb 10 is sprung between the opposed apertures 7. A separate lid, or an integral lid 12 may be provided.
Patent GB-601217-A (GB)
Title: Improvements in or relating to rotary valves for internal combustion engines
IPC: H03L7/12
Filed: 1944-07-20
Abstract: 601,217. Valves. ASPIN, F. M. July 20, 1944, No. 13919. [Class 7 (vi)] In a rotary valve assembly comprising a housing 12 and a rotary valve member 14, which have complementary tapered bearing and gas-sealing surfaces 13, the valve member 'having a through passage 15 forming substantially the whole combustion volume of the engine when the piston is at top dead centre and an end area exposed to the fluctuating fluid pressure against which it functions as a valve and in which the rotary valve member is formed with a second end area directed oppositely to the first and with a duct 23 leading directly from the through passage to a space 22 in the valve housing above said second end area so that there will exist in such space a pressure which tends to counterbalance that in the through passage and which will vary proportionally with fluctuations in the pressure acting on the exposed end area of the rotary valve member, the second end area is close to the bearing and gas-sealing surfaces of the valve, the pressure space 22 above it being of small volume, whilst the duct 23 leading thereto is short and of small diameter so that it does not appreciably reduce the compression ratio of the engine but produces a substantial time lag in the response of the counterbalancing pressure on the second end area to variations in the pressure in the through passage. The area subject to upward pressure is represented by area 27 of Fig. 3, and that subject to downward pressure by areas 28 and 29 of Fig. 2. In a modification, the rotary valve is driven from below so that the upper end area is not obstructed by a valve stem. A further modification has the upper end area formed on the upper face of a flange provided on the lower end of the rotary valve. Two or more flow passages may be provided in the valve instead of the one shown. Specifications 463,412 and 564,850 are referred to.
Patent GB-1148231-A (GB)
Title: Improvements in or relating to wide band transducing systems
Inventor: CAMRAS MARVIN
IPC: H04N5/92
Filed: 1966-03-29
Abstract: 1,148,231. Television; multiplex signalling. IIT RESEARCH INSTITUTE. 29 March, 1966, No. 13923/66. Headings H4F and H4L. In a magnetic recording system, the audio intelligence modulated signal is converted in mixer 110, Fig. 1, to an audio intelligence modulated signal having a reduced carrier frequency and a bandwidth within the effective range of the recording means, and the resulting reduced carrier frequency audio modulated signal is recorded on the same channel of the record medium as at least a component of the video signal accompanying the audio signal e.g. is recorded with the X or Z signal component of a colour television signal. Signal sources 105- 108 may comprise the circuits of a conventional colour television broadcast receiver circuit, audio signal source 108 comprising the conventional 4À5 Mc/s. frequency-modulated audio signal. The carrier wave from oscillator 111 which preferably constitutes the bias frequency source for the recording system, may operate at 5À5 Mc/s., thus causing the audio information to be conveyed by a 1 Mc/s. carrier at the output of mixer 110. For playback of the recorded signals three heads (101-103, Fig. 2, not shown) are used and the 1 Mc/s. carrier audio signal is separated by means of a tuned transformer and mixed with a 5À5 Mc/s. local carrier to provide a 4À5 Mc/s. frequency-modulated output signal which may be supplied to the sound I.F. and detector stages of a conventional colour television broadcast receiver. A delay line may be provided in the monochrome (-Y) channel. Two channel stereo sound signals may be recorded on the X and Z channels. A twochannel transducing system may be used in which the -Y signal is supplied to one recording head, and the X and Z signals and audio intelligence suitably relatively offset in frequency are supplied to the other recording head. In addition the synchronizing signals may be removed from the -Y channel and the vertical sync. recorded on a carrier having the frequency of the horizontal sync. pulses of the receiver and this carrier may be supplied to the head receiving the X and Z colour information. Alternatively the horizontal and/or vertical sync. pulses may be recorded on a separate channel in demodulated form or as amplitude- or frequency-modulated waves. In a further modified transducing system, the -Y, X, Z and related sound signal are all recorded on a single channel, the carriermodulated signals being obtained directly from an NTSC standard broadcast receiver by heterodyning. For economy a two-colour system may be recorded, e.g. X, R-Y, or I with -Y. Signals reproduced from the record medium may be converted to a carrier of broadcast frequency for coupling directly to a television receiver antenna.
Patent GB-567628-A (GB)
Title: Means for notching cottage loaf and other dough pieces
IPC: A21C11/12
Filed: 1943-08-26
Abstract: 567,628. Making bread. ALLEN, E. Aug. 26, 1943, No. 13933. [Class 28 (i)] A dough piece j, for example, for a cottage loaf &c., is notched by rows of serrated bars u and v, reciprocating vertically, while the dough is traversed along the rows and given a rotation so that in effect the dough is rolled against the bars, but as alternative bars move up and down, one bar counteracts the displacement push of the other. Each piece of dough is placed on one of a number of rotary supports i traversed by endless conveyer chains towards, along and away from the row of notchers u and v. A fixed rack n and a pinion imparts rotation to each support i when moving along the row. To prevent the dough from being pushed away, the conveyer can be set at a suitable inclination by screw jacks h which causes the table to pivot about f. A hand wheel z moves an abutment plate w towards or from the dough so that the depth of the notches made by the bars u and v is thereby adjustable. The notching bars move in grooves in this plate w, being reciprocated by cranks r. The notcher bars may be arranged inclined to form inclined notches.
Patent GB-545931-A (GB)
Title: Improvements in or relating to blocking-layer cells
IPC: H01L29/00
Filed: 1941-10-31
Abstract: 545,931. Asymmetrically-conducting resistances. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 31, 1941, No. 14070. [Class 37] The supply conductor to a grid or grids embedded in the blocking layer of a rectifier &c. cell is so arranged that the distance between it and the anode or semi-conductor is greater than that between the grid and the anode. This can be effected by thickening the blocking layer 41 at one edge 7, the conductor either passing over the thickened part or, as shown, the conductor 6 may terminate in a metal drop 10 on the raised part, the grid layer 5 covering the end and being electrically connected thereto. In modifications the anode is cut away opposite the conductor, either at the edge or by leaving a circular hole through which the conductor passes. A further example is described which has two grids. Specification 545,380 is referred to.
Patent GB-1006018-A (GB)
Title: Lift control system
Inventor: SPENCER-BROWN GEORGE
IPC: B66B1/16
Filed: 1963-04-09
Abstract: 1,006,018. Lift control systems. MULLARD Ltd. April 6, 1964 [April 9, 1963], No. 14138/63. Heading B8L. [Also in Division H3] A lift control system uses transistor NOR circuits in pairs as bi-stable memory circuits, and in other combinations to provide, e.g. direction determination circuits, and slowdown floor-approach circuits. A number of such circuits are combined into floor modules, which are all identical (except for the terminal floors which contain only circuits relevant to the terminal floor), and transmit signals to a central control circuit using similar transistor gates. A typical floor module is shown in Fig. 6, wherein a memory store 74 using three bi-stable circuits as described in Figs. 2, 3 (not shown, see Division H3) register calls from landing up and down buttons 70, 72 and car button 71. These calls are passed to direction determining circuits 75 (as in Fig. 4, not shown); doors circuit 76; call cancel circuit 77; and a slow down circuit 78 (as in Fig. 5, not shown) triggered by a pulse from a proximity device (such as a photo-cell) in the lift shaft. A single car system is described with reference to Fig. 7 (not shown) including a top floor module 1, and intermediate floor module 2, a central control circuit 3, and an auxiliary control module 4 containing sub-modules common to all floors. A multicar system is described with reference to Fig. 9 (not shown), and a cross-inhibitor circuit, Fig. 8 (not shown) to determine which car shall answer a call according to its position and direction of travel. Specification 1,006,019 is referred to.
Patent GB-644528-A (GB)
Title: Improvements in or relating to the production of non-volatile organo-silicic oils
IPC: C08G77/00
Filed: 1948-05-25
Abstract: Non-volatile organo-silicic oils are made by reacting sulphuric acid of concentration 50 to 85 per cent with methylhalogenosilanes having a mean CH3/Si ratio of 2 to 2.6, separating the oil and freeing it from volatile constituents.  Crude dimethyldichlorosilane may be used, or mixtures having the appropriate CH3/Si ratio.  In contrast to the result when using sulphuric acid of more than 85 per cent concentration, as in Specification 622,129, the reacted mixture separates into two layers, an upper one containing hexamethyldisiloxane and a high proportion of a viscous oil and a lower acid layer, which when 75 to 85 per cent acid is used may retain some siloxanes which may be separated by dilution or extraction.  Sulphuric acid of at least 60 per cent is preferably used to minimise solution therein of the hydrochloric acid which is evolved in gaseous form.  In examples: (1) methylchlorsilane (48.2 per cent chlorine; CH3/Si, 2.34) is reacted with 73 per cent sulphuric acid, the oily layer, after mixing with ligroin, being decanted, washed in water and dilute ammonia, the ligroin evaporated and then distilled under reduced pressure to give volatile products and an oil; (2) and (3) methylchlorsilane is reacted with 72 and 69 per cent sulphuric acid.ALSO:Non-volatile organo-silicic oils are made by reacting sulphuric acid of concentration 50 to 85 per cent with methylhalogenosilanes having a mean CH3/Si ratio of 2 to 2.6, separating the oil and freeing it from volatile constituents.  Crude dimethyldichlorsilane may be used, or mixtures having the appropriate CH3/Si ratio.  In contrast to the result when using sulphuric acid of more than 85 per cent concentration, as in Specification 622,129, the reacted mixture separates into two layers, the upper one containing hexamethyldisiloxane and a high proportion of a viscous oil.  With 75 to 85 per cent acid, the sulphuric acid layer may retain some siloxanes which may be separated by dilution or extraction.  The HCl is evolved in gaseous form and acid of at least 60 per cent is preferably used to minimize its solution.  In examples: (1) methylchlorsilane (48.2 per cent chlorine; CH3/Si, 2.34) is reacted with 73 per cent sulphuric acid, the oily layer, after mixing with ligroin, being decanted, washed in water and dilute ammonia, the ligroin evaporated and then distilled under reduced pressure to give volatile products and an oil; (2) and (3) methyl chlorsilane is reacted with 72 and 69 per cent sulphuric acid.
Patent GB-122798-A (GB)
Title: Improved Construction of Floors, Roofs, Landings, and the like.
Inventor: LAING JOHN WILLIAM
IPC: E04C5/03
Filed: 1918-08-31
Abstract: 122,798. Laing, J. W. Aug. 31, 1918. Addition to 121,039. Girder floors; roofs; staircases.-The floors, roofs, and landings described in the parent Specification, and formed of blockwork beams laid side by side, are reinfored by bars 2, 3 which are corrugated, indented, roughened, twisted, or formed with projections along their length instead of having their ends bent over the end blocks.
Patent GB-246785-A (GB)
Title: Power line carrier wave signalling system
IPC: H04B3/56
Filed: 1925-05-29
Abstract: 246,785. Western Electric Co., Ltd., (Assignees of Buttner, H. H.). Jan. 31, 1925, [Convention date]. Wired wireless systems. - High-frequency signals are transferred between a power carrier line 2 and a terminal circuit 4 comprising transmitting and receiving apparatus 1 by a coupling system characterized by the provision of impedances 5 and 6 designed to transmit certain frequencies (say those used for sending and receiving respectively) with minimum attenuation, or to act as a high-pass or low-pass band filter. As shown in Fig. 1, a single-wire aerial 4 is coupled to the power line 2 through the distributed capacity represented at 8, the capacity to earth being shown at 7. Fig. 4 shows a two-wire circuit with separate coupling aerials 8 giving an extra factor of safety. Both the systems in Figs. 1 and 4 can be considered as analogous to that shown in Fig. 5, which is a selective system having two degrees of freedom. By suitably choosing the valves of the impedances 5 and 6, and plotting frequencies against current values, a resonance curve of the shape a may be obtained in which the carrier frequency ft used for transmission and that fr used for reception are transmitted with minimum attenuation. Fig. 8 shows a coupling system derived from that of Fig. 4, in which the impedance elements 5, 6 are arranged to give a band-pass characteristic of the form b, Fig. 6.
Patent GB-454084-A (GB)
Title: Process of separating solutions or liquid mixtures into their components by cooling and crystallisation
IPC: B01D9/00
Filed: 1936-05-19
Abstract: 454,084. Solidifying liquids by cooling. GES. FUR LINDE'S EISMASCHINEN AKT.- GES., H÷llriegelskreuth, near M³nich, and KRAUSE, G. A., 16, Widenmayer'strasse, M³nich, Germany. May 19, 1936, No. 14216. Convention date, June 8, 1935. Addition to 429,474. [Class 29] The process described in the parent Specification is modified by forming the frozen mass in parts adapted to be assembled in the separator. Thus, e.g. an annular mass may be formed of segments or interfitting annuli.
Patent GB-689163-A (GB)
Title: Improvements in or relating to apparatus for cutting slate and like brittle sheet material
IPC: B28D1/22
Filed: 1948-05-26
Abstract: 689,163. Slate cutting. TUBELA ENGINEERING CO., Ltd., AHLIN, F., and RIDEALGH, H. May 2, 1949 [May 26, 1948], No. 14232/48. Class 124. A hand tool for cutting slates and like brittle sheet ma terial comprises two handles pivoted to one another, one being rigid with a jaw comprising two parallel plates spacec from one another and having edges lying in a single plane and the other with a jaw having a single plate with a convex curved cutting edge of the full width o: the plate lying be tween and paralle to the plates of the first jaw, the ar rangement being such that when the handles are drawn together the curved edge of the 'single jaw passes progressively through the plane of the edges of the two plates. As shown one jaw comprises a pair of spaced plates A, A', formed by bending a sheet of metal through 180 degrees and holding the free ends by a rivet and spacer A<SP>4</SP>. On a bolt C passing through both plates is pivoted a single blade B, spaced from the edges of the plates A, A<SP>1</SP> by spacers D. A spring F attached to the handle A<SP>3</SP> urges the jaws into the open position and a stop A<SP>5</SP> on the handle AS prevents the operator's hand slipping during use. The thickness of the cutting edge of the blade B may be 0.1-0.2 inches and it may taper from cutting edge to trailing edge and also from the free end to the hinged end.