baber/WOPTO huggingface dataset:
Patent GB-770151-A (GB)
Title: A recorder comprising means for selectively displaying predetermined images on the screen of a cathode ray tube
IPC: G06K15/12
Filed: 1952-11-28
Abstract: 770,151. Automatic speed control systems. GENERAL DYNAMICS CORPORATION. Nov. 28, 1952 [June 25, 1952], No. 30205/52. Drawings to Specification. Class 38 (4). [Also in Groups XX and XL (a)] In apparatus for recording by a xerographic process (see Group XX) an optically projected image of numerals and like symbols formed on the fluorescent screen of a cathode-ray tube in response to teleprinter-type signals comprising character and synchronizing pulses, the recording surface carried by a drum which is continuously rotated by an electric motor and to record successive groups of symbols in straight lines perpendicular to the direction of movement of the recording surface, the electron beam forming successive symbols is electrically deflected both vertically and horizontally to counteract the vertical displacement of the previously recorded symbol due to the drum movement. To maintain the drum in step with the rate at which symbols are presented, the synchronizing pulse and a pulse generated by a tachometer driven by the drum are fed to a pulse totalizer and the D.C. error signal after amplification is applied to a magnetic slipping clutch coupling the motor to the drum. In a modification, the delay introduced by the error signal is eliminated by feeding additionally from the totalizer in a loop circuit to a parallel pair of pulse generators, one of which is operated by negative error signals while the other is operated by positive error signals, their outputs being combined before being fed to the amplifier. In another arrangement, the motor is a twophase motor and its shaft is directly coupled to the drum, the amplified error signal causing simultaneous alteration of the motor speed by being applied to one winding of the motor and the vertical deflection of the image of the symbol on the cathode-ray tube screen. If a directly coupled motor is used and the amplified error signal is applied only to the cathode-ray tube, the symbols are recorded in line, but the interline spacing varies with fluctuations in motor speed. Reference has been directed by the Comptroller to Specification 672,767, [Group XX].
Patent GB-667568-A (GB)
Title: Improvements in soaking pit furnaces fired by gas or liquid fuel
IPC: C21D9/70
Filed: 1948-11-20
Abstract: 667,568. Soaking pit furnaces. SCHAEFER, H. Nov. 20, 1948 [June 21, 1948], No. 30207/48. Classes 51 (i) and 51 (ii). A soaking pit furnace with a rectangular heating chamber 8 has a combustion chamber 5 at one end supplied with hot air from a recuperator 16 by a pipe 7 and with gas by a pipe 4 and furnished with a sloping roof 9 formed with a part-cylindrical or part-conical surface. The back wall 12 and the side walls may be recessed to encourage even heating by the circulation of combustion products within the chamber, said combustion products being exhausted through offtakes 13 at the rear bottom corners of the chamber to pass by ducts 14 to the recuperator 16. An outlet 19 for molten slag is provided in the wall 12 between said offtakes 13 and a removable cover 11 is also provided. Specification 646,857 is referred to.
Patent GB-675642-A (GB)
Title: Improvements relating to machines for cutting slots
Inventor: STERN WILLIAM
IPC: B23G9/00
Filed: 1950-12-11
Abstract: 675,642. Conveyers. ILLINOIS TOOL WORKS. Dec. 11, 1950. No. 30262/50. Class 78 (i). [Also in Group XXII] In a machine for cutting slots in self-tapping screws, the screw blanks 5 pass along a shoot 6 from a hopper 3 and are carried past the helical slotting cutter 80 (see Group XXII) by carriers 24 on a chain 8. The finished screws are removed from the carriers by an extractor blade 150. Alternatively, the screws may be ejected by an air jet. A cutter shaft 118 is rotated by an electric motor which also rotates one of the sprockets 12 to drive the chain 10. At the cutting section, the chain is supported by formations 24, 37, Fig. 4, interengaging with members attached to the machine frame. The blanks are pressed into contact with their carriers by the rollers joining the links of a chain 39, the chain being forced downwardly by spring-pressed rollers 46. In a modification, suitable for screws having any type of head, the blanks 168, Fig. 11, are pressed on to inclined seatings by the flat links of a chain 154. The machine is stated to have a capacity of 800 screws/minute.
Patent GB-326857-A (GB)
Title: Improvements in and relating to means for reducing vibration due to reciprocating machinery and apparatus therefor
IPC: F16F15/22
Filed: 1928-10-19
Abstract: 326,857. British Thomson-Houston Co., Ltd., and Holland, W. R. Oct. 19, 1928. Systems depending on two or more machines.- Comprises means for starting alternating current electric machines connected to reciprocating machines and a common current supply when the machines are at a predetermined phase relationship so as to reduce vibration. Synchronous machines are used and an electric indicator connected in series with a number of current interrupters associated with the machines. Stationary brushes 3 bear on the surface of metal stripcarrying discs 1 on the shaft 2 of the machines A, B. The brushes are connected in series and joined to an electric supply through a. synchroscope or lamp 5. The strips 4 are so arranged that the current is completed only when the cranks are at the predetermined phase, thereby indicating when one or the other of the electric machines should be switched in to effect synchronization. Electric motors may drive threethrow ram pumps, or internal-combustion engines drive electric generators. Specification 15592/03, [Class 35, Dynamo-electric generators &c.], is referred to.
Patent GB-667236-A (GB)
Title: Improvements in or relating to superheterodyne radio receivers
IPC: H03D7/18
Filed: 1949-11-26
Abstract: 667,236. impedance networks. COLE, Ltd., E. K., and CHAPMAN, C. Nov. 27, 1950 [Nov. 26, 1949], No. 30341/49. Class 40 (viii). In a permeability tuned super-heterodyne receiver which can be switched to either a medium wave range or long wave range, a coil 2 is provided in the aerial circuit which, when the switch 4 is in the long wave position as shown, forms a series resonant circuit with a condenser 3 to by-pass an unwanted image frequency to earth, and, when the switch is in medium wave position, forms part of a parallel resonant circuit with condenser 10 to prevent signals of the intermediate frequency used in the receiver from being received from the aerial. The condenser 3 of the series resonant circuit forms the input-tuned circuit for the medium range operation in conjunction with a coil 11.
Patent GB-262430-A (GB)
Title: Improvements in and relating to electric current collectors
IPC: B60L5/22
Filed: 1926-12-01
Abstract: 262,430. British Thomson-Houston Co., Ltd., (General Electric Co., Ltd ). Dec. 1, 1926. Skate collectors; controlling arrangements for collectors. -The movement of a contact arm, pivoted to a rotating base transversely to the base axis, is controlled concurrently with the movement of the base. The arm, Fig. 2, comprises a copper contact 24 secured to an aluminium arm 22 connected to a cable 27 and carried by a wooden pole 3 mounted in a casting 17 pivoted at 16 to the base 1. Springs 12 are secured between cross bars 9, 15 carried by the base 1 and casting 17. The casting 17 is connected at 30 to a rod 29 provided with rollers 44 engaging a lower cam surface 43 on a block 39 coupled to the pistonrod 40 of a fluid-pressure cylinder 36. The rod 29 is contained within a sleeve 51 carried bv the base-plate 8 of the base 1 and provided with crank arm 50 and knob 49. This knob engages an L- slot 48, Fig. 5, in the block 39 which is slotted at 41 for the passage of the rod 29. The block 39 slides in a frame 31 which carries the cylinder 36 and is mounted on a tube 34 secured to the thrust bearing 2. To move the collector to operative position, fluid is admitted to the cylinder 36 to move the block 39 which first rotates the sleeve 51 and base 1 and then raises the rod 29 and contact arm.
Patent GB-675550-A (GB)
Title: Front-wheel cycle brake
IPC: B62L3/02
Filed: 1950-12-13
Abstract: 675,550. Cycle brakes. WIPPERMANN, W. Dec. 13, 1950, No. 30437/50. Class 136(i) A mounting for a cycle brake, which is adapted particularly for ease of fitment to cycles of the type in which the mudguard extends beyond the front fork, comprises a U-shaped stirrup member 7, secured to the cycle fork by a screw 6, having apertures in its arms 8 through which may be fitted a tubular element 3, slotted on one side, at the base of which is secured by the flange 4 a brake shoe holder 2. The top of the element 3 screws into a cap 16 having a knurled adjustment nut 19 through which passes the Bowden cable 20, the lower nipple 14 of which engages by a collar 13 the lower stirrup arm 8. When fitting the brake, the element 3 is inserted through the hole in the mudguard from below, passed through the bores in the stirrup arms 8 and is then screwed into the top cap 16 until the brake block holder 1 engages the lower end of a distance piece 17, this arrangement avoiding the necessity for removal of the brake block holders 1 from their mounting tubes usual with most known types of mounting.
Patent GB-1031847-A (GB)
Title: Method of synchronising multi-speed gears for motor vehicles
IPC: F16H63/34
Filed: 1963-08-01
Abstract: 1,031,847. Change-speed control. BELTOMATIC PATENTVERWERTUNGS - ANSTALT. Aug. 1, 1963 [Aug. 7, 1962], No. 30534/63. Heading F2D.  An external synchronizer for a vehicle change-speed gear comprises circular magnets 60, 61 rotated by shafts 59, 58, at speeds respectively proportional to those of the gearbox layshaft and the engine, within eddy current speedometer cups 62, 63 loaded by spiral springs 64, 65 and provided with arms 66, 67 carrying electrical contacts 66a, 67a which, at synchronism, engage to furnish a signal which may energize a solenoid 69, Fig. 2 (not shown), to release a ball detent 35 and thus free a gear selector rod 29. Alternatively the signal may de-energize the solenoid which normally holds the rod engaged. In the case of an automatic change-speed gear the open state of contacts 66a, 67a may interrupt or inhibit the transmission of the control signal initiating gear shift.
Patent GB-1018486-A (GB)
Title: Method and apparatus for applying coatings and making hollow bodies
IPC: B05C19/00
Filed: 1964-08-04
Abstract: 1,018,486. Coating apparatus. KNAPSACK GNIESHEIM A.G. Aug. 4, 1964 [July 18, 1963], No. 30605/64. Heading B2B. [Also in Division B5] A method of coating hollow bodies is characterized in that a fluidized pulverulent coating is poured on to the suitably heated surface of an object or mould to be coated. One embodiment of suitable apparatus has a fluidized bed container 12 with a gas permeable plate 32 near the bottom thereof to divide it into an upper chamber 34 for coating material and a lower chamber 36 for the introduction of fluidizing gas. Gas permeable plates 32a are provided in the upper chamber for removal of the gas. The top edge of the container 12 is formed with suitable flange means to enable a hollow body 92, the inside of which is to be coated, to be secured thereto. The container 12 is made rockable about a horizontal axis by supporting journals 46, 48, which are hollow and connected by a ring tube 4 and are used to convey the fluidizing gas from supply pipe 64 to chamber 36 via pipe 96. A handwheel 58 is fastened to journal 48 for rotating the container 12. In operation fusible coating material 40 is introduced into chamber 34 and by opening a valve in supply pipe 64 chamber 36 is connected to the gas supply. The hollow body 92 to be coated is heated to the necessary temperature and clamped on to the container 12. The gas entering chamber 36 passes through plate 32, flows up through the coating material, which is thus brought to a fluid-like suspended condition, and the gas then passes out through plates 32a. As soon as the coating material has been suitably fluidized the container 12 and the hollow body 92 are tipped about the axis of journals 46, 48 by handwheel 58. This action has the effect of shutting off the gas supply through journal 46 from passage 62 and causing the fluidized coating material to drop out of container 12 into the hollow body 92 where that contacting the heated interior surface thereof is fused and sintered on to said surface. After an adequate thickness of coating has been formed the container is turned back to the starting position and the hollow body 92 is removed. To aid the removal of loose material from the surface of body 92 a vibrator device may be attached to said body during the coating operation. This also assists the coating material to penetrate into corners, grooves &c. By incorporating a further gas supply pipe a current of gas may be passed into chamber 36 with the container 12 in any position and further the fluidization may be assisted by vibration and/or passing the material through sieves. By using the hollow body 92 as a mould and wetting it with a parting agent before the coating is applied the invention can be used to manufacture hollow bodies, the coating being removed from the mould (hollow body 92) after cooling of the coating.
Patent GB-221708-A (GB)
Title: Improvements in or relating to golf balls
IPC: A63B37/00
Filed: 1923-12-06
Abstract: 221,708. Leeson, G. W. T. Dec. 6, 1923. Balls.-A golf ball is made in one piece by moulding a spherical core of rubber mixing consisting of ribbed-smoked sheets, zinc oxide, and sulphur, together with 5 per cent ammonium carbonate or other gas evolving ingredient, the core being covered by a vulcanite mixing containing a small proportion of linseed oil and an accelerator, the whole being then vulcanized.
Patent GB-1099136-A (GB)
Title: Improvements in or relating to leaf springs
Inventor: DIXON ROLAND
IPC: F16F1/18
Filed: 1965-07-20
Abstract: 1,099,136. Springs. WILLIAM E. CARY Ltd. July 18, 1966 [July 20, 1965], No. 30767/65. Heading F2S. In order to save weight and to produce a more uniform stress distribution throughout the cross-section of a single spring leaf a halfelliptic vehicle spring is formed from a flat steel bar of constant width, e.g. of two inches, and both lateral edges A are bent down in the same direction to an extent which increases progressively toward the anchorage region B of the spring and so that the original thickness of the leaf is not substantially altered and a channel section is formed which becomes progressively wider and shallower in a direction away from the spring's point of maximum bending stress. The flanges A preferably extend just over half the length of the leaf and are preferably formed with a substantial radius of curvature at their juncture with the medial part of the bar. The effective width of the bar is appreciably waisted towards the region B, at which point the flanges A are mutually parallel, curving away from each other as they progress towards the ends of the leaf. The effect of the flanging operation is to shift the neutral axis E-E of the bar appreciably towards its upper tensile face. The terminal flat sections of the bar may be progressively thinned, e.g. by taper rolling. The invention is also applicable to quarter elliptic springs as well as C-springs.
Patent GB-1468850-A (GB)
Title: Louvred damper constructions
IPC: E06B7/084
Filed: 1974-07-11
Abstract: 1468850 Louvred damper construction AUTODAMP AIR SYSTEMS Ltd 11 July 1974 [31 July 1973] 30840/74 Heading F4V [Also in Division F2] A damper for controlling the flow of gases along a duct or passageway comprises louvres 42-45 pivoted in a frame. Resilient sealing means 36, Fig. 2, along opposed side members 17, 18 of the frame resiliently engage the ends of the blades when they are aligned in closed overlapping position. The sealing means have convex portions, Fig. 3 (not shown), which press against the blade ends in the direction parallel with the blades' pivot axes. The blades are mechanically connected such that adjacent blades rotate in opposite directions. Each blade has a pivot axis 78, Fig. 5A, and pivots by means of a shaft 59, Fig. 2, mounted in holes in the side members of the frame. Blades 42 and 43 are connected by a link 74 pivoted to members 72 and 70. Blades 44 and 45 are connected by similar members 76, 72 and 70, Fig. 5A. Blades 43 and 45 are connected by a link 68 pivoted to members 64 so ensuring that the blades 43 and 45 rotate in the same direction at the same rate. Drive is applied to either or both the blades 43 and 45. Considering the pair of blades 42 and 43, the connection 72, 74, 70 ensures that, as viewed in Fig. 5A, while turning the blades to their closed position, blade 42 turns clockwise and blade 43 counterclockwise. Thus both overlapping blade edges travel in the same direction across the sealing means toward alignment thereby avoiding pinching of the resilient sealing means. The connection 72, 74, 70 is such that, as alignment is approached, blade 43 turns faster than blade 42 and the distance between the overlapping edges progressively decreases. At the overlapping edges of adjacent blades there are resilient sealing means (56), Fig. 4 (not shown).
Patent GB-193154-A (GB)
Title: Improvements relating to fingers for mowing and like machines
IPC: A01D34/17
Filed: 1921-11-18
Abstract: 193,154. Waldron, P. B. Nov. 18, 1921. Addition to 175,743. Mowing-machines. -To keep the spring- supported ledgerplates f described in the parent Specification in position when the knife-bar d is removed each ledger-plate is provided with a curved forward extremity f<1>, which is adapted to engage a curved projection f<3> on the finger bar a, and with a downward loop k at its rear end enclosing a projection l on the finger. In modified forms, the forward end of the plate f is inclined instead of curved, and the downward projection at the rear end is T-shaped to engage in a corresponding recess in the finger-bar. To prevent lateral displacement of the plates central ribs may be stamped or pressed therein; these ribs engage in recesses in the fingers.
Patent GB-1149943-A (GB)
Title: Improvements in and relating to the casting of alloys containing carbon
IPC: B22C1/02
Filed: 1966-07-11
Abstract: 1,149,943. Mould and core materials. SULZER BROS Ltd. 11 July, 1966 [29 July, 1965], No. 31054/66. Heading B3F. [Also in Division C3] In a method of casting alloys containing carbon the mould material includes a protective substance which may be a silicide or a mixture of silicides, to prevent de-carburization and pitting of the surface of the casting due to oxygen infiltration through the mould during cooling, the protective substance being able to combine chemically with oxygen during cooling of the casting at mould temperatures above the firing temperature of the mould and having a melting point which is below the pouring temperature of the alloy but above the firing temperature of the mould. In an example described the mould material comprises 250 Kg. of fire clay mixed with 25 Kg. of refractory cement and the protective substance in the form of 25 Kg. of calcium silicide is added. The mould is fired at about 900 C. which destroys a wax pattern therein and a 13% chromium steel is poured into the finished mould at a temperature of 1600 C., the melting point of the calcium silicide being about 1220 C. In another example a mould composition is prepared from a solution of five litres of ethyl-silicate, 2À5 litres of alcohol, 0À25 litres of water, 5 c.c. of 32% hydrochloric acid and 18 Kg. of zirconium flour. An urea pattern is successively dipped in the solution to build up coats on the pattern and the protective substance in the form of a powdered aluminium silicon alloy is sprinkled on between coats. The mould is air hardened, placed in a bath to dissolve the urea pattern, fired at 900 C. and then filled with a carbon steel at a temperature of 1600 C. The melting point of the aluminium silicon alloy was 1100C . and the alloy contained 0À8% C, 33% Si, 48% Al, 3% Ti and 13% Fe.
Patent GB-1153944-A (GB)
Title: Machine For Constructing Pneumatic Tyres
IPC: B29D30/32
Filed: 1967-07-06
Abstract: 1,153,944. Tyre-building machine. M. GUHR, and A. HERBERT, [trading as LEONH. HERBERT MASCHINENFABRIK]. 6 July, 1967 [6 July, 1966], No. 31147/67. Heading B7C. A machine for constructing a pneumatic tyre comprises an expansible tyre building drum and a device for positioning bead cores on fabric plies placed on the drum which comprises two frames shown as rings 13 each provided with hooks 39 having recesses 61 for reception of a bead core, each hook being spring-loaded and carried by a radially displaceable bolt 40. Each frame is mounted on a sleeve 7 axially slidable on a rod 3, each sleeve being provided with an arm 14 carrying two rollers which bear against opposite sides of a guide bar 4 which thereby prevents the frames from rotating about rod 3. Also mounted on rod 3 is an element 20 having an arm whose extremity 23 is mounted on a portion 25 of a rotatable spindle 24 and arms 30, 31 having tapped bores engaging right- and left-hand threaded portions 28a, 28b respectively of the spindle and projections 32, 33 carrying rubber buffers 34, 35 and limit switches 36, 37, the purpose of which is to automatically initiate expansion of the drum when the bead cores are correctly positioned. In use, bead cores are mounted in the hooks and the bead core positioning units 2, 2a are pushed inwards over the collapsed drum until arms 14 abut rubber buffers 34, 35, which are arranged so that the bead cores are positioned directly above grooves in the drum. The drum is then expanded radially with fabric plies thereon, the latter being forced into the grooves by the bead cores. When the hooks engage the plies, they are pressed outwards releasing the bead cores. The two rings 13 may then be moved outwards.
Patent GB-436483-A (GB)
Title: Improvements in and relating to multi-compartment bags and like containers
IPC: B65D30/22
Filed: 1934-10-30
Abstract: 436,483. Envelopes &c. SCHNEIDER, H., 49, Turnstrasse, Altona-on-Elbe, Germany. Oct. 30, 1934, No. 31163. Convention date, Oct. 30, 1933. [Class 146 (ii)] [See also Group XVII] A multi - compartment envelope, bag, &c. is formed by folding a sheet of paper &c. so that the entire margin of the original sheet, excluding the edge of any closure flap but including the line of fold thereof, lies in a single edge of the final product, adhesive &c. being applied to the inner surface of the material so as to isolate completely each compartment of the bag &c. from the others. In one modification, Fig. 1, a square is folded along e, f, to form the rectangle a, b, f, e. The line g, h is gummed and the rectangle folded therealong. The lines a, hand b, h are then gummed and the squares a, g, h, e, and g, b, f, h folded therealong. A four-compartment bag is thus produced with compartments a, h, e : a, g, h : g, b, h : and b, f, h. A closure flap may be provided along the edges a, e or b, f. In a further modification, Fig. 2, the square is folded along the line c, b. Gum is applied along the line a, e, and the triangular blank folded therealong. A double bag is thus obtained with a closure flap a, c, f, g. A rip string i, positioned along the fold line b, c prior to folding and which may project at one or both ends, may be provided. In still further modifications a rectangular or hexagonal blank may be used.