baber/WOPTO huggingface dataset:
Patent GB-610775-A (GB)
Title: Improvements in or relating to arrangements for demodulating time-phase modulated electric pulses
IPC: H03K9/04
Filed: 1946-04-16
Abstract: 610,775. Thermionic distributers. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., SCULLY, C: T., and AMBROSE, D. M. April 16, 1946, No. 11672. [Class 40 (iii)] [Also in Groups XL (a) and XL (c)] For demodulating a phase-modulated train of pulses, a cathode-ray tube has a screen or plate upon which the beam impinges at a position depending on the timing of the pulses and means are provided to generate a current or potential whose magnitude varies with said position. In one embodiment the beam 3, Fig. 1, of the cathode-ray tube 1 is normally suppressed and released by the pulses applied from terminal 16 to the grid 5. Synchronizing pulses are separated from the pulse train by circuit 17 to control a saw-tooth oscillator 19 which feeds a sweep voltage to the deflector plates 6. The position of the luminous spots on the screen 4 due to the applied signal pulses thus varies with their timing. The light from the spot illuminates the photo-cell 8 through a screen 7 of graduated opacity so that the potential at the output terminal 14 varies in accordance with the time displacement of the pulse. In a multiplex system of this type, adapted for demodulating the interlaced channel pulses of a combined pulse train, displaced spots are formed on the screen in positions corresponding to the individual channels and separate photo-cells and variable opacity screens co-operate with the different spots, Figs. 3, 4, 5 (not shown). The beam may alternatively be given a circular sweep and selenium photo-cells may be used. In another embodiment, the beam of a cathode-ray tube 44, Fig. 7, co-operates with a target electrode 52 backed by an earthed plate 51. The electrode 52 is triangular in shape, Fig. 8, and the beam spot on the target is spread into a vertical rectangle 59 by the application of oscillatory potentials from generator 58 to the vertical deflecting plates 49, 50, the sweep voltage from generator 19 being applied to the horizontal deflecting plates 47, 48. For separating and demodulating the interlaced pulse trains of a multiplex system, a plurality of target electrodes are arranged in line or round a circle, Figs. 9 and 11 (not shown). In a further embodiment, the beam impinges on a rectangular target 78, Fig. 13, of resistance material, one end of which is earthed and the other end connected through an output resistance 81 to earth. The position of the spot 22, formed by the received pulse, determines the potential at the unearthed end of resistance 81 and demodulated signals are produced at this point. Alternatively, a target 82, Fig. 15, may be made up of a mica sheet having a metallic coating divided into insulated sections connected to corresponding taps on a wirewound resistance 83. When used in a multiplex system, the tube may contain a plurality of targets as in the other embodiments.
Patent GB-407549-A (GB)
Title: Disc clutches
IPC: F16D13/54
Filed: 1933-04-21
Abstract: 407,549. Friction clutches. HERBERT, SIR A., LLOYD, A. H., and HARRISON, H. T., c/o Herbert, Ltd., Canal Road, Edgwick, Coventry. April 21, 1933, No. 11692. [Class 80 (ii).] In a clutch comprising discs 16 splined alternately in a driving sleeve 19 and on a driven shaft 11, the discs are moved axially into engagement with each other by levers 30 which are pivotally mounted in recesses 35 on a sleeve 32 secured to the shaft and which engage cam faces 29 of a presser plate 27. Between the latter and the discs is arranged an intermediate plate 25 splined on the shaft 11, the adjacent faces of the plates 25, 27 being provided with radially-arranged serrations 28 which are normally held in engagement with each other by springs 26 surrounding pins 23 projecting from a backing plate 20 carried by the shaft. Thus, the plate 27 is normally held against angular movement relative to the shaft, but, by inserting a tool into radial slots 38, may be levered round to adjust the clutch. The levers 30 are operated by movement of a sliding collar 15 having radial pins 34 which engage in the recesses 35 and co-operate with the inclined ends of the levers. When the clutch is engaged, the pins 34 engage flat surfaces 37 of the levers so as to maintain engagement. As shown, a clutch is arranged on either side of the collar 15, which has two sets of pins for selective operation of the two clutches.
Patent GB-1183422-A (GB)
Title: Diesel Hammer
IPC: E02D13/10
Filed: 1968-03-11
Abstract: 1,183,422. Pile drivers. DELMAG-VERWALTUNGS G.m.b.H., [trading as DELMAG MASCHINEN FABRIK REINHOLD DORNFELD]. 11 March, 1968 [15 March, 1967], No. 11731/68. Heading B3H. [Also in Division F2] A diesel driver with a free-falling piston 12 and a striker 13 is provided with a cushioning ring between a collar 13e on the striker and the cylinder 11. The ring is preferably formed of a metal ring 21 with spaced rubber or like resilient material segments 22 fixed to the ring by moulding in holes 21a in the ring. The metal ring has its upper surface recessed 21c between the holes and it is bolted to the cylinder. The segments define recesses 23 on the lower surface of the ring. Alternatively, the rubber ring may be continuous with recesses formed therein or the cushioning ring may be segmented and the segments fixed at spaced intervals to the cylinder. The spaces or recesses on the face of the ring adjacent the cylinder reduce the heat transmitted from the cylinder to the rubber ring and also serve as air cooling passages.
Patent GB-1537174-A (GB)
Title: Umbrella type cover
IPC: E04H15/28
Filed: 1977-03-21
Abstract: 1537174 Umbrella like cover G R JONCKHEERE 21 March 1977 [8 April 1976] 11768/77 Heading E1A A tent or cover of umbrella like form comprises a central telescopic support pole raised by means e.g. of a central jack 5 which raising automatically spreads radial telescopic stays 17 as a collar 15 to which the stays are linked by struts 21 is raised along the pole by cable loops 13, 14 extending over pulleys 11, 12 and joined to the upper end of the lower fixed pole 1. Elastic chords (28) Fig. 1 (not shown) prevent the cover from being trapped between the stays on furling.
Patent GB-351626-A (GB)
IPC: G03F1/54
Filed: 1930-04-14
Abstract: 351,626. Photo-mechanical screens; reflectors. HEIDENHAIN, J., 108, Gitschinerstrasse, Berlin. April 14, 1930, No. 11800. Convention date, Aug. 10, 1929, [Classes 97 (i) and 98 (ii).] A process of making photo-mechanical screens consists in forming a lead sulphide mirror on a transparent plate as of celluloid, cellon, or glass, coating thereon a light-sensitive layer as of albumen bichromate, exposing this to light under a ruled line or dot screen, rolling with oil pigment, developing with water to remove the unexposed albumen, dusting as with asphalt powder to render the remaining pigmented albumen acid-proof, etching away as with iron chloride the lead sulphide laid bare, and finally washing off the rest of the asphalt as with benzine. Two lined plates so prepared may be cemented together with their lines crossing. The lead sulphide mirror is prepared by mixing in the order named 2 per cent solutions of lead acetate, thiourea and caustic potash, immersing the transparent plate in the mixture, and slowly heating until a mirror of the required density has been deposited.
Patent GB-1211937-A (GB)
Title: Airscrew sailing ships
Inventor: PEDRICK ARTHUR PAUL
IPC: B63H13/00
Filed: 1970-01-15
Abstract: 1,211,937. Wind motor propulsion. A. P. PEDRICK. 15 Jan., 1970, No. 11808/68. Heading B7V. A ship driven solely by natural winds is provided with a rotatable wind-driven member (as shown a Pelton wheel type device) which is connected by a mechanical linkage to a water impeller (e.g. water-screw or paddle wheels): and also by an electrical linkage to the same or a further water impeller, the electrical linkage comprising an electrical generator driven by the wind-driven member, a storage battery charged by the generator and an electric motor supplied by the battery and driving the water screw or paddle wheels. As shown water screw 27 is driven from motor 20 by the mechanical linkage comprising rod 25 transmission box 26 and the spindle of an electric motor 28, The alternative electrical drive is obtained from the box 28 driving a. generator 29 to charges a battery 30 which supplies the motor. A number of embodiments are described which disclose inter alia (a) vertical and horizontal Pelton wheel arrangements, rotatable about a vertical axis, (b) air screw arrangements (c) paddle wheels or water screw drive, (d) trimaran hull structure, (e) auxiliary sails.
Patent GB-929972-A (GB)
Title: Convertible crawler shovels and like machines
Inventor: LANGSTROTH CECIL CRAVEN
IPC: E02F9/00
Filed: 1960-04-04
Abstract: 929,972. Endless track vehicles. DOMINION ENGINEERING WORKS Ltd. April 4, 1960, No. 11809/60. Class 79(1). An earth-working machine comprises a supporting frame structure comprising a pair of side members 6 connected together by tie members 13, each side member comprising a pair of channel members 14 spaced apart and set back to back between which are located bearing and guide wheels 34, 31 for an endless track. The ends of each side member 6 are constructed as forks in which are slidable bearing members 17 and 17a for the sprocket wheels of the endless track. The bearings 17 are provided with screw 20 having adjusting and locking nuts 23 and 23a and support the driving shaft 21 with which the track sprocket 15 and a sprocket 30 are fast, the sprocket 30 being driven by a chain 29 from a shaft 27. The tension of chain 29 may be adjusted with the aid of nuts 23 and 23a. The bearings 17a support the shaft 25 upon which is rotatably mounted by means of a sleeve 26 (Fig. 8), the idler sprocket 15a, the bearings 17a having screws 20a and nuts 23a by means of which the track tension may be adjusted. Keep plates 19 may be provided to retain the bearings 17 and 17a in position. The tracks may be removed and the bearings 17 and 17a supporting the sprockets 15 and 15a may be replaced by similar bearings, Figs. 2 and 3, which support flanged wheels 11 and 11a, the shafts of which, on opposite sides of the vehicle, may be interconnected, with chain drives for the front and rear wheels being provided as shown in Fig. 9. The vehicle may operate upon a railway flatcar, Figs. 1 and 7, provided both which chocks of wood 9 or rails 6 for the tracks or wheels.
Patent GB-1254302-A (GB)
Title: Improvements in insulated gate field effect transistors
Inventor: DAS MUKUNDA BEHARI
IPC: H01L23/29
Filed: 1968-03-11
Abstract: 1,254,302. Semi-conductor devices. ASSOCIATED SEMICONDUCTOR MFRS. Ltd. 28 Feb., 1969 [11 March, 1968], No. 11844/68. Heading H1K. In an insulated gate field effect transistor in which the source and drain regions have interdigitated finger portions 13, 17 connected to respective source and drain base portions 12, 16, the gate electrode includes limb portions 28 parallel to the source and drain region finger portions 13, 17 and connected by a common base portion 27 which at least partly overlies the source region 12/13. The source electrode 24 lies on the base portion 12 of the source region so that the current paths between the source electrode 24 and the source region finger portions 13 pass beneath the gate electrode base portion 27. Isolated metal layers 31 may be provided in ohmic contact with the source region finger portions 13, but these may be omitted. Similarly, the drain electrode may include finger portions 32 connected to the drain region finger portions 17 and joined to a common base portion 25, or the finger portions 32 may be omitted. The preferred configuration comprises three identical IGFET structures in a common high resistivity P-type Si substrate, the source, drain and gate electrodes respectively of the three structures being connected together through thermocompression bonded wires joined to bonding pads on the Al electrodes. The substrate is also connected directly to the source electrodes. Each structure comprises a central drain region 16 with outwardly directed finger portions 17 and surrounded by a rectangular frame-shaped source region 12 with inwardly directed finger portions 13 interdigitated with the drain finger portions 17. The base portion 27 of the gate electrode is also frame-shaped, and the inwardly directed limb portions 28 thereof may be joined only to the base portion 27 or may also be joined to one another in pairs as shown. The gate electrode 27/28 is preferably off-set as shown from the junction 18 defining the edge of the drain region 16/17 adjacent the channel portions 19 of the substrate, but this is not essential. The gate insulation may be of silicon oxide alone or of silicon oxide covered with silicon nitride for stabilizing purposes.
Patent GB-322151-A (GB)
Title: Improvements relating to railway-wheel-lathes
IPC: B23B5/28
Filed: 1929-04-17
Abstract: 322,151. Loudon Bros., Ltd., and Buchanan, G. H. April 17, 1929. Lathes. - In a railwaywheel lathe, the slide rests 3 which in operative position are opposite the wheels 4, are integral with their respective movable headstocks 2 so that when the headstocks are withdrawn, unobstructed passage of the wheels between the slide rests is permitted.
Patent GB-1502292-A (GB)
Title: Focus detector
IPC: G03B13/36
Filed: 1975-03-21
Abstract: 1502292 Automatic focusing MCA DISCOVISION Inc 21 March 1975 [25 March 1974] 11913/75 Heading H4D [Also in Divisions G2-G3] An automatic focusing arrangement for use in, for example, a video-disc player, comprises a focus detector, disposed in the beam reflected from the disc surface and focused on a video signal detecting photodetector, and consisting of at least one or preferably two surfaces disposed either side of the focal point of the beam, which surfaces may be photosensitive or may reflect a portion of the beam to photodetectors, and have central portions allowing passage of the beam to the video photodetector, whilst an out of focus condition allows a progressively larger portion of the beam to impinge on one of the detectors to create an error signal which is used in a servo to correct the out-of focus condition of the optical system by, e.g. moving the beam focusing lens in the direction of the beam path, or by moving the video disc itself in the same axis. The focus detectors may be linked to the lens movement. In the embodiment of Fig. 6, the peripheral portions of beam 38 reflected from video disc surface 14 via lens 20 and beam-splitter 18 are arranged to continually intercept detectors 40X and 42X, the central portion of the beam passing through holes 44, 46, Fig. 5, to impinge on video detector 26. Variations in focus produce variations in the proportion of the beam 38 falling on the detectors 38 (see Figs. 2, 3, 4, not shown) and the difference of the signals produced by detectors 40X and 42 which are amplified at 52, 54, Fig. 5, is obtained by subtractor 56 and used to drive, e.g. a linear magnetic motor 32 the armature of which is connected to lens 20. Alternatively, centrally apertured mirrors M-1, M-2, Fig. 7 may be substituted, and reflect the varying peripheral portions of the focused beam 38 to detectors D-1, D-2, beam 38 being subsequently focused on detector 26 by mirror 26-L. Silicon detectors 40X, 42X, may have translucent openings rather than holes which may be shapes other than circular to suit the optical system. Beam-splitter 18 may be arranged to operate with a polarized beam. The focus detector may be arranged to detect disc position deviations in advance of the information reading to compensate for servo-lag. It is stated that the invention could be applied to an X-ray detection instrument on a moving production line.
Patent GB-108741-A (GB)
Title: A New or Improved Trench Knife.
Inventor: JOUBERT FELIX
IPC: F41B13/08
Filed: 1916-08-25
Abstract: 108,741. Joubert, F. Aug. 25, 1916. Daggers; swords; sheaths; carrying side-arms. -Consists in a trench knife comprising a blade a shaped as shown in Fig. 3, a guard c adapted to fold flat against the weapon, and a haft b terminating in a chisel-like weapon of offence b<1> and having a wrist band b<4>. The guard consists of a cranked plate c, Fig. 6. secured to a cranked tumbler c<1> working in a slot in the weapon. In a modification, the guard is formed of two plates secured to the ends of the cranked tumbler. The scabbard may be of stiffened fabric d, Fig. 1, bound with leather d<1>, d<2> and furnished with a loop for attaching it to the belt.
Patent GB-529582-A (GB)
Title: Reinforcement for heels of boots and shoes
IPC: A43C13/02
Filed: 1939-04-21
Abstract: 529,582. Boot &c. protectors. COLBURN, H. April 21, 1939, No. 12052. [Class 17 (iii)] A heel protector comprises an L-shaped plate bent to the shape of the heel, one limb 1 being .plain and countersunk into the edge of the heel, while the other limb is formed with teeth 3 some of which are bent to form claws 6, the end ones 4 being provided with nail holes 5. The device may extend completely round the heel, and its ends may be connected by a bar. It may be of channel-section instead of L-shaped.
Patent GB-580321-A (GB)
Title: Improvements in and relating to safety devices for boat lowering gear
IPC: B63B23/18
Filed: 1944-06-24
Abstract: 580,321. Boat lowering gear. OSBALDESTON, F. June 24, 1944, No. 12052. [Class 115] A brake applied to a boat's fall when the load becomes inclined during lowering comprises a jaw 7<1> pivoted to the casing of the lower block 1 and connected by the links 7, 9 and-removable pin 10 to a member 11 attached to the boat. The fall is gripped between the hinged jaw 7<1> and a fixed jaw 8.
Patent GB-180866-A (GB)
Title: Improvements in or relating to safety belts for children
IPC: A47D13/08
Filed: 1921-04-27
Abstract: 180,866. Brodie, R. April 27, 1921. Straps and bands.- Safety harness for children comprises a waist-belt a, means such as chains c for connection to a perambulator, chair, or the like, shoulder-straps d, and a transverse belt h connecting together the shoulder - straps and passing round the chest and back and beneath the arms of the wearer. Pads l may be arranged beneath the arms of the wearer. For assisting the child to walk rings i are attached to hooks m, Fig. 2, carried by straps j supported from a handle k.
Patent GB-166384-A (GB)
Title: Improvements relating to winches
IPC: B66D1/74
Filed: 1920-05-01
Abstract: 166,384. Harland & Wolff, Ltd., and Stewart, J. D. May 1, 1920. Winches; driving-gear; self-sustaining gear.- A worm-driven winch, adapted to serve also as a bollard by utilizing the retaining nature of the worm or by employing in addition a positive lock, comprises a pedestal 4, carrying a drum shaft 9, having a drum at each end, and a bevel-wheel 15 near the middle, in mesh with a bevel-wheel 14 on a shaft 10. This shaft carries a worm-wheel 13, driven by a worm 12 on a shaft 8 turned by hand. When lowering, the shaft 8 may be rotated in the reverse direction to that when raising, or it may remain stationary, the ropes being payedout over the drums.. The worm-gear normally locks the drum shaft, in this case, but security may be ensured by passing locking pins through the shaft 8 and its bearings. The Provisional Specification describes a winch in which each hauling rope after being passed round one of the winding drums is passed round one of a pair of drums loosely mounted on shafts parallel and close to the winding-drum shafts.
Patent GB-513936-A (GB)
Title: Improved uncoiling mechanism for supporting and rotating a coil of strip material
IPC: B21C47/34
Filed: 1938-04-19
Abstract: 513,936. Unwinding. GLASNER, R. W. April 19, 1938, No. 12158/39. Divided out of 513,854. [Class 83 (iv)] A coil of strip metal rests on-rotated rollers 62 which unwind the coil for feeding to a drawing press or other machine, the rollers 62 being engaged in pairs on cradles 64, pivoted at 65 so that they accommodate themselves to suit the gradually decreasing diameter. of the coil as it unwinds. The coil is located between end plates 61 adjusted in or out by hand operated racks and pinions. The rollers are driven by an electric motor through a hydraulic variable speed ,gear 70, a speed reducer 71 and chains and sprockets. To regulate the rate of unwinding, the size of free loop of metal strip formed thereby is caused to. contact and actuate' a limit switch 93 to cut out the driving motor. The position of the switch 93 is set by adjusting its position on an arm 95 which can itself also be adjusted by swinging it about 96 and locking it by a bolt 102 in the desired position. The uncoiler may be used with the press described in Specification 513,854.
Patent GB-1206679-A (GB)
Title: Improvements in or relating to telecommunications equipment assemblies
IPC: H05K7/18
Filed: 1968-03-13
Abstract: 1,206,679. Mounting electrical equipment. SIEMENS A.G. 13 March, 1968 [14 March, 1967], No. 12170/68. Heading H1R. In a telecommunication equipment assembly in which a plurality of units are mounted on a base to form a vertical stack the units and base are provided with runners on their ends which are adapted to co-operate with each other so that the units can be assembled in any arbitrary sequence in the stack. In the embodiment of Fig. 1 two stacks of units are mounted on base 11, unit 1 being a transmitter, 1a a receiver, 2 a voltage regulating unit and 2a a mains unit. Each unit is provided at its upper and lower end with a pair of runners 3a and 3 which are mirror symmetrically designed so that the pairs of runners on each unit co-operate with and engage the runners on adjacent units in its vertical stack. The pair of rails 3a mounted on the base 11 carry an end-stop block 26 with a threaded hole in which a screw 10 passes to lock the unit to the base, a similar screw being provided for each of the co-operating pairs of runners. The top pair of runners on the bottom unit is provided with a socket strip 7 mounted by distance pieces on a bridging plate 4 via which connections from this unit to the units situated above it are effected. The bottom pair of runners on the next unit includes a plug strip 7a which co-operates with the socket 7. A finishing strip 25 is provided at the top of the second unit instead of a plate 4 and socket strip 7, further plug in elements 16 being arranged between the rails co-operating with a plug 15 on a flexible lead for connection to a further stack of units on exchange. Where a common base is used for several stacks of units the topmost units of each stack can be connected together by cross-pieces 12. In the modification of Fig. 3 (not shown), the base 11 is provided with plug and socket strips between its runners. From these strips cables pass through cavities in the base to further socket strips concealed in the base for the external connections of the stacks. In order to improve the stability of the stacks spring plates may be provided to eliminate any play between runners when two units have been assembled right up to the end-stops, Fig. 4 (not shown).
Patent GB-604419-A (GB)
Title: Yarn winding machine
IPC: B65H54/14
Filed: 1944-09-28
Abstract: 604,419. Winding yarn. CLARK, D. M. (Abbott Machine Co.). Sept. 28, 1944, No. 12177/47. Divided out of 604,354. Drawings to Specification. [Class 120(ii)] In a yarn winding machine having individual winding units, each unit having means, including a driven shaft, for rotatig a winding bobbin, means for distributing yarn on the bobbin, including a reciprocating guide and a double-throw flat cam and a cam follower driven by the cam for reciprocating the guide, a worm on the driven shaft and a worm wheel to drive the cam therefrom, the cam profile is such that each revolution thereof imparts to the follower two throws each consisting of two strokes, the two strokes, which are in opposite directions being of different lengths and preferably having, in succession, the ratios 1# in., 1¢ in., 1# in., 1¢ in. The invention is particularly described as applied to the machine described in Specification 604,354. Specification 522,664 also is referred to.