baber/WOPTO huggingface dataset:
Patent GB-287716-A (GB)
Title: Improvements relating to the steering column of mechanically propelled vehicles for rendering the latter thief-proof
IPC: B60R25/022
Filed: 1927-03-28
Abstract: 287,716. Aspinall, F. March 28, 1927. Guarding against unauthorized use.- The steering wheel is rendered useless by interrupting the connection between the steering column and worm. A tube 7 inside the column 1 is formed with a thread 12 on which works a sleeve-nut 13 formed with radial teeth 14. The lower end of the column is castellated and the inner surface of the worm 2 is formed d with corresponding recesses. In the working position shown the column and worm are connected by the teeth 14. If the tube 7 is turned by means of a handle 10 the sleeve 13 descends until the teeth 14 occupy an annular recess 15 in the worm and the connection is broken. A lock may be fitted in the hub 24 of the wheel 3 to lock the column and tube in this position. In a modified construction, the nut 13 works inside the tube 7 and is formed with two sets of external teeth.
Patent GB-1413592-A (GB)
Title: Blind fastener
IPC: F16B39/282
Filed: 1973-02-22
Abstract: 1413592 Rivets STANDARD PRESSED STEEL CO 22 Feb 1973 [22 Feb 1972] 8616/73 Heading F2H [Also in Division B3] In a blind fastener a sleeve 10, having a flange 50 at one end and an external segment 26, flared at 28, at the other end, and a through bore 22, terminating in a bore 24 of larger diameter, in which a pull pin 12 is mounted having a head 14, initially of the same diameter of the chamfered (32) flared end 28 of the sleeve 10, and a tapered segment 16, the arrangement is such that initially the sleeve 10 with the pin 12 in situ is swaged, rolled or forced through dies to compress the end 28 of the sleeve 10 about the tapered segment 16 of the pin 12 and the assembly is then inserted through aligned bores 58, 60 in workpieces 54, 56, the pin 12 then being drawn by a pulling device through the sleeve 10 to radially deform the end 28 at 64, Fig. 5, over the adjacent surface of the workpiece 56 to cause a locking collar 46 to be seated between countersunk portions 48 of sleeve 10 and a groove 66 on the pin 12 and finally to break the pin 12 at neck 44.
Patent GB-670775-A (GB)
Title: Improvements in or relating to space heating heat transfer systems such as central heating systems
IPC: F24D11/00
Filed: 1948-03-24
Abstract: 670,775. Electrically-actuated valves. BARRACLOUGH, B. B. S. March 7, 1949 [March 24, 1948 ; June 9, 1948], Nos. 8672/48 and 15519/48. Class 135 [Also in Group XIII] In a central heating system for district heating by circulation of hot oil (see Group XIII), the flow of oil may be reversed, e.g. periodically by means of electromagnets controlled by a time switch or thermostat. Two solenoid windings 76 on a squaresectioned cylinder 57 are alternatively supplied with current to reciprocate a valve block 60 endwise within the cylinder. When the block is in the position shown, an outlet bore 63 receiving the hot oil outflow from a storage tank connects, by a groove 67 around the block to a bore 65 on the distribution side of the valve but when the left hand electromagnet 76 is energized and attracts the block 60, the outlet 63 connects by way of an oblique groove 74 on one side of the block to a passage 69 in the cylinder 57 which leads to the other distributing bore 66. In like manner a second encompassing groove 67, an oblique groove 75 in the near side of the block and a passage 68 in the cylinder lower wall communicate in turn between the distributing bores 66, 65 and an inlet bore 64 returning oil to the storage tank inflow pipe.' Electric current is supplied by way of a rotary time switch 77 to each of the solenoid windings 76 in turn and an interrupter switch 83 is provided in each circuit. Each switch is operated by a spring- loaded plunger 80 (on a roller 81 in a longitudinal groove in the block 60 with a sloping base 82) to break the circuit of the solenoid which has caused the block to move. Springs 61 abut screw plugs 58 at either end of the cylinder 57 and act as buffers for the block 60 which has a longitudinal vent 62.
Patent GB-213762-A (GB)
Title: Improved construction of ambulance stretcher
IPC: A61G1/02
Filed: 1923-03-27
Abstract: 213,762. Huddart, A. H. March 27, 1923. Litters.-The side members 1, Fig. 2, of an ambulance or like stretcher are of channel crosssection and each contains a wire rope or flexible rod 11, which supports the stretcher cloth and passes through blocks 12 near its ends, where it is secured to screwed rods 11<a> adjusted by nuts 2<a> in brackets 2 at the ends of the side members 1, the nuts being locked by screwed handles 13. The inner wall of each side member is formed with scallops 1<d>, adapted to receive pins 4 which support the rope 11, and with larger projections 1<e>, 1f which support wheels 3 located between them and curved parts 1<a>, 1<b>, Fig. 3, of the outer wall of the side member. The wheels 3 rotate on tubes 7, Fig. 5, provided with brackets 5, to which the side members are connected by pins 9 passing through the outer wall thereof and secured to blocks 8 in the tubes 7. The sides of the stretcher cloth 14, which may be rubber covered or support an air bed 16, are formed with projections having tubular edges 15 through which the ropes 11 pass, and the ends are provided with wires or tubes secured to lugs on the brackets 2. According to the Provisional Specification, the side members are secured together by channelled cross-members and the wheels are mounted on pins in the side members.
Patent GB-308172-A (GB)
Title: Improvements in and relating to contact-making relays, particularly for electric signalling systems
IPC: H04B3/20
Filed: 1929-03-18
Abstract: 308,172. British Thomson-Houston Co., Ltd., (Assignees of Tolson, W. A.). March 17, 1928, [Convention date]. Relaying or repeating systems; thermionic relays; duplex signalling.- The contact of a relay is operated in response to the voltage across an impedance in a control circuit when the current in that circuit has risen only to a fraction of its normal value, further rises in the control current being substantially bye-passed by a shunt across the impedance. As shown in Fig. 1 two relaywindings 24, 26 are connected in the plate circuit of a valve 25, the grid circuit of which isconnected across a resistance 17 in the direct current control circuit 16. The relays 24, 26 respond to a small current in the control circuit (determined by the bias battery 27) but as the control current rises, grid current flows in the valve 25 and prevents a large drop of voltage in the resistance 17. In a modification shown in Fig. 2, the relay winding 24 is in the control circuit, and is shunted by a two-electrode valve 25<1> biased by a battery 27, the shunting effect being the same as described above. As shown in Fig. 1, the relays from part of a two-way high-frequency repeater and are employed to prevent singing. Two aerials or high-frequency lines 5, 6 are associated with the channels 1, 2 of the repeater by hybrid coils 3, 4 and balancing networks 7, 8. Signals arriving on the line 6 pass to a detector 19, and thence to a modulator 12 (where they are re-converted to highfrequency form) and to the line 5. Carrier current for the modulator 12 is generated by a valve oscillator 9, the plate current path of which includes the resistance 17 and a valve 14, normally non-conductive. When signals arrive at the detector 19 the grid of the valve 14 is rendered more positive, and allows the oscillator plate current to start up. This plate current passes through the resistance 17 and causes the relays 24, 26 to operate. The relay 26 opens a shortcircuit across the grid leak 28 of the oscillator and oscillations are consequently generated in the valve 9 and pass to the modulator 12 and line 5. A fraction of this modulated energy may reach the detector 21 in the other branch 2 of the repeater and may set up a re-entrant path through the oscillator-modulator 23, hybrid coil 4, and the repeater branch 1. To prevent this (which would result in singing of the repeater) the relay 24 disconnects and short-circuits the output circuit of the detector 21. In the branch 1, the output circuit of the detector 19 is similarly opened by a relay in the circuit 32 extending from the oscillator-modulator 23 of the branch 2, which comprises valves arranged similarly to the valves 9, 14, 25 of the branch 1.
Patent GB-801277-A (GB)
Title: Improvements in and relating to photographic contact printing or copying apparatus
Inventor: WICKHAM REGINALD FRANK
IPC: G03B27/22
Filed: 1955-03-25
Abstract: 801,277. Photographic contact printing apparatus. MASON & SONS, Ltd., E. N. Feb. 3. 1956 [March 25, 1955], No. 8802/55. Class 98(2) The apparatus comprises a cylindrical lamp and an endless belt, band or the like, with means for rotating the lamp about its axis and for displacing the belt, band or the like to carry copy material round with the lamp, and contact means for supplying current to the lamp during its rotation. The invention comprises also such apparatus adapted to operate with a lamp but in which the lamp is not actually present. Numerous ancillary features are described. In an example illustrated with reference to seven figures of the Provisional Specification, of which only Fig. 1 is shown, a fivefoot blue fluorescent tubular lamp 9 is rotated in a loop of belt 11 driven by roll 1 and passing also round feed-roll 13 and take-off roll 18 above the feed-roll. Takeoff mechanism for the copy material, described before the feed arrangements, comprises a series of springy wire fingers terminating in scraping edges 22 engaging the lamp envelope whereby the copy material may be conveyed as by the outside of the belt 11 over the take-off and driving rolls to fall to a compartment in the lower part of the apparatus; and the take-off roll together with the wire fingers may be swung upwards about the axis of the driving roll for removal or insertion of the lamp leaving the belt in engagement with the feed roll 13. Feed, to the top of the belt over the feed roll may be effected from a roll of sensitized paper stored in trough-like receptacle 28 which, when the apparatus is in use, is swung upwards so that its cover 29 is horizontal and forms a table for insertion of the transparency to attain position on the sensitized paper before engaging the lamp 9. Electrical contact arrangements for the revolving lamp are described in Fig. 5. In a modification, Fig. 8 of the Complete Specification, printing paper from container 27a is led round an additional roll 61 over slit 62 provided with a cutter and thence along platform 63 to the feed position, and rotary brushes 64 may be provided to obviate the need for a takeoff scraper and also assist feed of copy material to the lamp. A developing bath apparatus as of driven dipping roller type may be disposed on top of a casing 36 for the printing apparatus.
Patent GB-634663-A (GB)
Title: Drawbench
IPC: B21C1/24
Filed: 1947-04-01
Abstract: 634,663. Drawing. AETNA-STANDARD ENGINEERING CO. April 1, 1947, No. 8829. Convention date, April 15, 1946. [Class 83 (iv)] A draw-bench has two mandrel assemblies, each of which may comprise one or more mandrels, one assembly being locked in the drawing position whilst the other is in loading position. The transfer from one position to the other is effected without substantial rotation of the mandrel rods about their axes and without much deviation from the horizontal. Means are provided to move the mandrel heads to and from the dies when in operative position. Troughs 35, Figs. 5 and 6, are welded to supports 56 carrying brackets 58, 59 to which rocker arms 64, 65 are pivoted. The arms are keyed to shafts 75, 80 mounted in the main frame and carrying pinions 97, Fig. 11, connected by a chain attached at 94 to the piston-rod of a cylinder 89 for rocking the arms to transfer the troughs from one position to the other. The arms 64, 65 are of channel construction and the arms 64 are wider than the arms 65 to permit the required amount of nesting at the ends of the transfer movements. The troughs admit cross-heads 122 in which the mandrel rods 30 are adjustably mounted by screwed sleeves 120. The rods have a fluid-tight connection by glands 132 with sleeves 118 telescoping in the sleeves 120 under the control of springs 130 that tend to advance the mandrel heads into the dies. The crossheads 122 are carried by cylinders 145 having end-plates 147, 148 sliding on rods 150 carried by the side-plates 112 of the troughs, the bottoms being cut away at 110. The pistons are carried by rods 154 secured to the troughs at 114. When the cylinders have advanced the mandrels towards the dies a projection 160 on the cylinder end enters a hole in the frame and locks the parts against movement by the rocker arms. Flexible pipes at 136 connect the sleeves 120 to lubricant supply via the crossheads 122 and the lubricant passes through the hollow-mandrel rods to the heads. Further lubricant is supplied at 172 to sleeves 34 surrounding 'the mandrel-rods. The valves controlling lubricant supply are electrically connected to the valves controlling the cylinders 145 so that lubricant is supplied only to the mandrels when the heads are in position in the dies. The loading-rack 18, Fig. 3, for the tubes to be drawn is mounted on top of the frame and has guides 47 for the tubes as these are fed over the mandrels by rollers 24 (not shown). The carriage travels on guides 40 carried by the frame which is gapped to permit delivery of the drawn tubes down an inclined guide 50 to a collecting trough 52. In a modification in which the troughs tilt slightly laterally during transfer, the supporting rods 221, Fig. 10, slide through guides 228 pivoted to the frame at 229 and are pivoted to arms 216 on a rockshaft 215 operated by the piston-rod of a cylinder 230 pivoted to the frame at 232. Specification 619,683 is referred to.
Patent GB-651529-A (GB)
Title: Improvements in or relating to optical glass
IPC: C03C3/074
Filed: 1948-03-25
Abstract: 651,529. Optical glass. KODAK, Ltd. March 25, 1948, No. 8877. Convention date, March 26, 1947. Drawings to Specification. [Class 56] An optical glass results from solidification of a fused batch consisting of the oxides of the following metals in cationic proportions, 5-25 per cent Be part of which may be replaced by Zn, 50-90 per cent B part of which may be replaced by Al, and 5-25 per cent Pb part of which may be replaced by Cb or Ta. The amount of PbO present is sufficiently low to render it possible to make the glass in a Pt vessel, and is stirred with the other components after they have been mixed and melted, care being taken to prevent the PbO coming into contact with the Pt. The ZnO content is 0-20 per cent by weight, and a minimum of 2 per cent cationic is necessary to have an appreciable effect. The Al 2 O 3  may comprise 0-20 per cent by weight and when added should comprise 2-20 per cent cationic. The CbO 2-5  and TaO 2 . 5  should be between 0-15 per cent by weight, and to have a noticeable effect is between 1-5 per cent cationic. The composition in cationic per cent of eight examples is as follows:-(1) BO 1 . 5  79.7, PbO 11.4, BeO 8.9; (2) BO 1 . 5  77.1, AlO 1.5  4.2, PbO 10.1, BeO 8.6; (3) BO 1 . 5  71.4, AlO 1 . 5  7.2, PbO 8.3, BeO 8.5, ZnO 4.6; (4) BO 1 . 5  65.5, AlO 1 . 5  15.4, PbO 9.0, BeO 6.7, ZnO 3.4; (5) BO 1 . 5  70.6, AlO 1 . 5  8.0, PbO 6.2, CbO 2 . 5  1.9, BeO 8.9, ZnO 5.0; (6) BO 1 . 5  71.3, AlO 1 . 5  7.3, PbO 5.9, TaO 2 . 5  2.4, BeO 8.5, ZnO 4.6; (7) BO 1 . 5  64.9, AlO 1 . 5  10.8, PbO 8.6, BeO 8.8, ZnO 6.8 (8) BO 1 . 5  52.8, AlO 1 . 5  17.5, PbO 9.3, BeO 9.5, ZnO 10.9. The compositions are also given in weight per cent. The glasses have an index of refraction between 1.6 and 1.7, and an Abbe value between 40 and 45, with a relatively low blue partial dispersion. Some optical properties are also given, particularly the Q value which is about 0.637 or 0.638.
Patent GB-635365-A (GB)
Title: Improvements in or relating to photography
IPC: G03B39/02
Filed: 1947-04-02
Abstract: 635,365. Taking photographs in rapid succession. ASPDEN, R. L. April 2, 1947, No. 8977. [Class 98 (i)] Photographs are taken by effecting a sequence of two or more exposures in such rapid succession that the resulting images cannot be separated by mechanical means, using a sequence of two or more flashes of light of different optical characteristics and separating the resulting images by the use of two or more light filters and/or layers of sensitized material of correspondingly different optical characteristics. The light flashes may differ in spectral content or in plane of polarization, or in both. Apparatus may consist of one or more cameras and one or more means for producing the light flashes connected with the camera shutter so that the sequence of exposures may take place while the shutter is open. A single camera without a shutter may be used. As shown, the light flashes are produced by gasdischarge tubes 12 with condensers 13 connected in parallel. Conventional means 18 provides a voltage applied to the tube triggering electrode, and charges the condensers 13 between flashes. The tubes provide differently coloured light, or white light which passes through filters 15, 16, 17 of different colours. The camera 11 may be shutterless, or its shutter, which may be a Kerr cell with a polarizer, may open while the tubes are operated to give a sequence of light flashes of different colour. The images are recorded on film such as is known under the Registered Trade Marks " Dufaycolour " or " Kodaohrome ". The images are superimposed, if the film is stationary during a sequence of exposures, or overlapping if the film moves continuously through the camera, and are separated by printing from the film through colour filters. Alternatively, the film may consist of a pack having layers sensitized to light of different spectral ranges, with interposed filter layers if required, so that the images are recorded in different layers, which are afterwards separated and developed. In another arrangement, the shutters of two or more cameras such as 11, each with associated light-flash-producing means, are so connected that one opens as another closes, so that two or more sequences of exposures may be separately recorded. When two shutterless cameras are used, the two sets of light flashes are polarized in mutually perpendicular planes, and the cameras have polarizers each admitting the light from the respective set of tubes. The film may be moved through the cameras either continuously or. intermittently between sequences.
Patent GB-803713-A (GB)
Title: Improved transmission system for endless-track vehicles
IPC: B62D11/10
Filed: 1956-03-22
Abstract: 803,713. Vehicle driving and steering gear. PETROVITCH, M. March 22, 1956 [March 23, 1955(2)], No. 6982/56. Class 79(2) A transmission system for an endlesstrack vehicle comprises two half-shafts 16l and 16r drivingly connected to the track driving wheels 21l and 21r on respective sides of the vehicle, a differential gear D connecting the half-shafts and consisting of coaxial pinions 17l 17r, mounted on each shaft respectively and meshing with planetary pinions 18, 18 rotatably mounted in a carrier 15, means operalbe at will to transmit the drive from the vehicle engine 1 to the carrier of the differential gear, and second means operable at will to hold the carrier stationary and transmit the drive to one of the half-shafts 16r and thus to rotate the other half-shaft 16l in the opposite direction so as to pivotally turn the vehicle, one of the means comprising an epicyclic gear. In an embodiment, the drive from an engine 1 is transmitted by a gearbox G and bevel gears 32, 33 to a hollow shaft 11 through which passes the half-shaft 16r. The sun pinions 12s, 13s of two epicyclic gears 12, 13 are mounted on respective ends of the shaft 11, and the driven carriers 12c, 13c of the epicyclic gears are connected respectively to the carrier 15 of the differential gear D and to the half-shaft 16r. Forward and reverse motion is obtained by holding'the gear 12 stationary by the brake 12b. For turning the vehicle about its central axis, the differential carrier 15 is held stationary by the brake 20, and the drive is transmitted to the half-shaft 16r by holding the gear 13 stationary by the brake 13b. Other embodiments are described in which an epicyclic change-speed gearbox or a constant-mesh change-speed gearbox is constructed to lie about one of the halfshafts 16l or 16r. A clutch may be used in place of one of the epicyclic gears. Independently operable brakes 25l, 25r are provided on the driving wheels 21l, 21r to enable the vehicle to turn whilst in forward or reverse motion.
Patent GB-566739-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41F17/00
Filed: 1943-06-07
Abstract: 566,739. Printing-machines. CHALMERS, J. June 7, 1943, No. 9074. [Class 100 (ii)] An offset-machine for printing on rough materials is constructed with a printing-surface 20, Fig. 4, shown as in a vertical position, and a flat coplanar offset surface 21 to which an offset impression from the surface 20 is transferred by means of a travelling offset roller 17 which is mounted in a reciprocating carriage 13 moving in guides 15. The roller 17 is mounted in spring-controlled supports, and is controlled by a. sliding cam 67 so as to be lowered on to the surfaces 20, 21 during upward movement and to be raised therefrom during downward movement of the carriage. The carriage 13 also carries spring-mounted inking-rollers 16 which are also cam-controlled so as to cooperate with the surface 20 and with an inking- roller 22, but to be raised out of contact with the offset surface 21. In the highest position of the carriage 13, the rollers 16 engage an inking drum 22 which receives ink from a duct roller 24 and messenger roller 25, and is fitted with distributing rollers 27, 28 which are given lateral vibrations. The material to be printed is fed to a platen 18 oscillated by crank mechanism and a pitman 38 connected to an eccentric pivot which permits adjustment of the printing pressure. The machine may be converted into an ordinary letterpress printing-machine, and may be operated by hand or power. The printing surface may be arranged horizontally.
Patent GB-215530-A (GB)
Title: Condenser ferrule extractor
IPC: B25B27/14
Filed: 1923-04-03
Abstract: 215,530. McFarlane, H. B. M., and Hall, J. April 3, 1923. No Patent granted (Sealing fee not paid). Screwdrivers.-In a device for extracting and inserting condenser &c. ferrules comprising a stem piece a, adapted to enter the condenser tube and provided with tongues b to engage tha notches d<1>, Fig. 5, of the ferrule f, a collar c and a square head e, the shoulder c<3> of the collar is coned to engage with a similar shoulder b<1> in the cover nut a<1>. In removing a ferrule, the stem a is inserted into the ferrule so that the tongues b engage tha notches d<1> of the ferrule, the cover nut a<1> is placed over the stem and screwed down on to the ferrule, by means of its angular head c<1>, until the shoulders c<3>, b<1> engage, the ferrule then being extracted by rotating the stem a through its square head e. In inserting a ferrule the reverse procedure is followed.
Patent GB-495108-A (GB)
Title: Improvements in and relating to the setting of the teeth on revolving files
IPC: B23D73/00
Filed: 1937-03-31
Abstract: 495,108. Rotary files. CUCUMO, M. March 31, 1937, No. 9132. [Class 83 (iii)] A rotary file of disc type has cutting edges 1, all cutting in the same direction and arranged in groups on the plane faces in star shaped form. In Figs. 1 and 3 the cutting edges are adjacent to clearance slots 2 which extend completely through the cutter. Another modification, shown in Fig. 4, is not provided with throughslots for clearing the cuttings.