baber/WOPTO huggingface dataset:
Patent GB-804542-A (GB)
Title: Improvements in or relating to endless bands and to hinge-incorporating components therefor and methods of producing the latter
Inventor: HENDERSON JOHN
IPC: B65G17/00
Filed: 1955-03-10
Abstract: 804,542. Endless tracks for vehicles. ATKINSON'S AGRICULTURAL APPLIANCES, Ltd. March 10, 1955, No. 7004/55. Class 79(1) [Also in Group XXX] A hinge-incorporating component for an endless band is produced by coring a pad of wear-resistant material to provide a longitudinal through opening and filling the opening with a cushion of flexible resilient material rendered substantially inextensible by internal reinforcements, to each end of which is transversely hinged within the cushion a lug which emerges from the cushion and projects to the pad exterior. As shown in Figs. 8, 9 and 10, each link of an endless track for vehicles is formed by the pad P from which project the lugs 46, 47 carrying hinge pins 48, 49 interconnected by plates 44, 45, the lugs, pins and plates being bonded to the rubber cushion C<SP>4</SP> which is injected into the pad P through the opening 59. In order to decrease the weight of the link the pad may have another rubber insert I injected through an opening 59. The insert I and cushion C<SP>4</SP> may have key surfaces co-operating with the pad P, which may be formed of metal, such as aluminium or manganese steel, or of materials of the asbestos base, solid weave, metallic friction material class. Instead of the plates 44, 45 being spaced transversely, they may be grouped together, Fig. 6 (not shown). As shown in Fig. 12 the endless track is formed by series of links p<SP>1</SP>, P<SP>2</SP>, P<SP>3</SP>, alternating with driving bars 61, the links P<SP>1</SP> being formed with lateral inserts I<SP>1</SP>. Lugs 65 of the links are recessed to receive projections 74 on the lugs of adjacent links, and adjacent lugs receive bolts 91 which also pass through the driving 'bars 61 and tension plates 93, the lugs being sandwiched between the bars and plates. Spaces 62 in the track are adapted to receive teeth of a driving sprocket, and twin sets of bogie wheels run over the surfaces of the pads P<SP>1</SP> on each side of the track medium plane along which are disposed guides on the bars 61. The plates 93 and the bars 61 may have interlocked connections with the lugs 65. The transversely aligned pads P<SP>1</SP>, p<SP>2</SP>, p<SP>3</SP> may be unitary with one another. The invention may be applied to endless belt :conveyers.
Patent GB-862667-A (GB)
Title: Improvements relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B9/02
Filed: 1958-03-05
Abstract: 862,667. Clips and fastenings; stud and socket fastenings; locking bolt-like pins. F.T. PRODUCTS Ltd.. March 3, 1959 [March 5, 1958], No. 7107/58. Classes 44 and 89(1). A fastener 23, Fig. 2, consists of a strip of metal, e.g. hard-rolled phosphor-bronze or carbon-steel, bent so as to comprise a baseportion 24, upstanding shank-elements 25, 251 and wing-elements 26, 261 provided with a pair of legs 12, 27 and 121, 271 respectively; the legs 12, 12<SP>1</SP> extend downwardly and the legs 27, 271 extend upwardly, and the latter are each provided with a lug 13<SP>1</SP>. The fastener 23 is used for securing a coil-former 30, Fig. 3, a shielding can 31, and an electric connectorplate 28 to a panel 32; the former is gripped between the shank-elements 25, 251, the can 31 is engaged by the lugs 131, and the plate 28 is secured under the wing-elements 26, 261, by inwardly-bent shoulders 181, 191, on each of the legs 27, 27<SP>1</SP>, and assists in pressing the shankelements 25, 251 into engagement with the former 30. The legs 12, 121, are passed through apertures in the panel 32, and may be secured by being twisted, clenched-over or welded, or they may be provided with integral-hooks for snapping into engagement with the undersurface of the panel 32.
Patent GB-280420-A (GB)
Title: Improvements in lateral splash preventers for vehicles
IPC: B62D25/18
Filed: 1927-03-15
Abstract: 280,420. Wrigley, T. March 15, 1927 Lateral-splash guards. - Relates to lateralsplash guards comprising a non-rotary guard member freely mounted on a ring of U- or other cross-section fixed on a vehicle wheel and engaging a circular hole in the guard member. The guard member consists of a substantially triangular member of sheet material having a straight horizontal lower portion to the side of which a straight strip of material constituting the guard proper is directly attached. As shown, the ring comprises two flanged annuli 1, 2, the flange 10 of the annulus 2 being bolted to the wheel 3 and the flange 12 of the annulus 1 being bolted to the annulus 2 after the substantially triangular guard member 4 has been placed in position. The ring may also be formed of a number of segmental channelled portions bolted together, or it may consist of a one-piece ring of U-section the hole in the member 4 being sufficiently large to enable the member to pass over the outer flange of the ring and drop into the channel. The member 4 may have wings 7 at its front or rear ends, or both. to prevent longitudinal splashes. The guard proper may consist of a strip 5 of rubber &c. slit at intervals to prevent buckling. The member 4 may be weighted or otherwise steadied.
Patent GB-895003-A (GB)
Title: Improvements in coupling arrangements for radio-frequency resonant cavity
IPC: H01J23/46
Filed: 1959-03-02
Abstract: 895,003. Magnetrons. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 2, 1959 [March 5, 1958], No. 7161/59. Class 39 (1). A coupling arrangement for a magnetron comprises a loop 5 arranged within a resonant cavity 7 and tapered, tubular, ceramic window 11 soldered at either end to discs 10, 12 of iron-nickel-cobalt alloy The smaller disc 12 is of the same diameter as the inner conductor 13 of a co-axial line 4. It is soldered to this conductor and to the stem of the loop 5. The larger disc 10 is soldered to the apertured end wall 8 of the co-axial line
Patent GB-425934-A (GB)
Title: An improved holder and expander for piston rings
IPC: B25B27/12
Filed: 1934-03-07
Abstract: 425,934. Tools for expanding pistonrings. ZIM MANUFACTURING CO., 3047, Carroll Avenue, Chicago, U.S.A. March 7, 1934, No. 7250. Convention date, April 29, 1933. [Class 61 (ii)] A tool for holding and expanding pistonrings comprises curved fingers 1, 2 formed at their free ends with flanges 5 on which the rings rests when the fingers have been swung toward each other, against the action of a spring 8, to engage the ring by levers 10, 11 pivoted together at 12 and to the fingers at 13, the fingers turning about elements 7 formed on their bases and adapted to enter the gap in the ring. Continued closure of the levers 10, 11 causes the fingers 1, 2 to pivot about their points of contact with the ring separating their base ends and so expanding the ring. The pivots 12, 13 are disposed in slots in a T-shaped plate 14 carrying through a slot 23 and pivot 22 a pair of links 15, 16 pivoted at their other ends to the fingers 1, 2 to compel them to move in unison.
Patent GB-931673-A (GB)
Title: Suction cages for forming a lap or the like of fibrous material
Inventor: OWEN THOMAS WILLIAM
IPC: D01G9/10
Filed: 1959-03-03
Abstract: 931,673. Forming fibre laps. COTTON, SILK & MAN-MADE FIBRES RESEARCH ASSOCIATION. Feb. 16, 1960 [March 3, 1959], No. 7256/59. Drawings to Specification. Class 120 (1). Apparatus for collecting fibrous material as a lap, comprises a suction cage (which may co-operate with another suction cage rotating in the opposite direction and forming a nip therewith). An air extraction unit is located externally of, and is operative over the whole effective axial length of, part of the cage periphery on one or both sides in such a manner that air flow into and through the cage is evenly distributed over the whole effective axial length of the cage to leave fibres carried thereby deposited on the outer periphery. A stationary arcuate baffle within the first cage causes air to flow more directly to outlet ducting.
Patent GB-865075-A (GB)
Title: Electrical pulse recurrence rate measurement
Inventor: BIRNSTINGLE DAVID WILDON
IPC: G01R23/09
Filed: 1958-03-06
Abstract: 865,075. Frequency discriminators; transistor monostable-state circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 12, 1959 [March 6, 1958], No. 7302/58. Classes 40(5) and 40(6) A pulse recurrence rate measuring circuit comprises two transistors connected together to form a monostable trigger circuit arranged to be triggered into its unstable state by the input pulses, and a current integrating meter connected so that current pulses of magnitude and duration dependent only on the circuit characteristics and independent of the characteristics of the input pulses flow therethrough in the unstable state of the circuit whereby the meter gives an indication of the recurrence rate of the input pulses. In Fig. 1, transistor T 1  is non-conducting and transistor T 2  conducting in the stable state, since the base of T 2  is held negative through a potential divider R 6 , D and diode D is normally conductive so that transistor T 2  is saturated and its collector is substantially at earth potential and while T 2  conducts the base of T 1  is held at positive potential and T 1  is therefore non- conducting. In the stable state, no current flows through meter M. A negative pulse at the input is applied to the base of T 1  thereby causing it to conduct and its collector to go positive therefore causing the base of T 2  to go positive through condenser C, which tends to cut off transistor T 2  and therefore tends to make the base of T 1  more negative (through resistance R 3 ). Eventually transistor T 1  becomes saturated and almost simultaneously T 2  cuts off, the circuit now being unstable. The voltage on condenser plate A is now zero and that on plate B at V 1  positive with respect to A, diode D therefore cutting off. Condenser C discharges through R 2  and the potential on B decays exponentially until it reaches earth potential when diode D again conducts and T 2  again conducts and the circuit again becomes stable. Current flows in meter M during the discharge of the condenser C, though while T 1  conducts, a comparatively very small charging current for the condenser flowing in addition. It is proved in the Specification that the total current in the meter is equal to V 1 C n (R 2 /R 1      )loge2+1) and therefore equal to a constant k (depending only on the circuit constants), xn where n is the pulse recurrence frequency. The circuit may be used to measure frequency when means must be provided for converting a sine wave into a pulse train of corresponding frequency.
Patent GB-476092-A (GB)
Title: Improvements in vibrating propellers for boats or the like
IPC: B63H1/36
Filed: 1937-03-12
Abstract: 476,092. Vibrating - blade propellers. VALENTE, A. March 12, 1937, No. 7332. [Class 114] A vibrating-blade propeller for boats is provided with an adjustable non-yielding stop control of the limits of the angular movement of the propelling blade with respect to the rocking arm. The blade 21 is carried by a spindle 20 on the end of an arm 17 which is itself pivotally mounted on a plate 16 between cheeks 18, this plate 16 being disposed on the upper end of a spindle 15 driven by a cross belt 13 from a shaft 9.which is suitably oscillated by a handle 10. The top of the blade spindle 20 is provided with a plate 22 which is cut away so that its surfaces 23 act as stop members to limit the angular motion of the blade, and this is in turn controlled by a member 24 which is of wedge formation and adjustably movable either by rotation on a spindle or longitudinally, so that the contacting surfaces 23 are given a particular final angular position. This adjusting member 24 is provided with notches 25 with which a spring catch 26 co-operates, for holding it in definite positions. The blade itself may be formed of horizontal corrugations 21. At the stern of the boat, a stabilizing vane 6, is mounted on a horizontal transverse pivot 7, and secured thereto is a line 8 whereby the stabilizer can be raised out of the water when not required. In a modification the blade 16 is oscillated by a power motor.
Patent GB-195071-A (GB)
Title: Improvements in relation to drawing mechanism for treating fibrous material in drawing frames and throstle spinning frames
IPC: D01H5/22
Filed: 1923-03-14
Abstract: 195,071. Rigaux, V. March 15, 1922, [Convention date]. Rollers and roller heads. - In drawing- mechanism for drawing or spinning frames, a single upper roller 7, which may be weighted, is used in contact with feed rollers 1, 2, so that the roving passes through the two nips so formed and in contact with the lower part of the roller 7, and means comprising an endless belt 4, Fig. 1, or one or a pair of upper rollers giving three nipping points a, b, c, as shown in Fig. 3, is provided to maintain the roving in contact with the upper part of the roller 2, so as to ensure even and regular movement of the roving to the drawing-rollers 3, 3<1>. The roller 8, Fig. 5, serves to guide the band and to ensure a light even pressure on the roving, and is arranged in advance of the roller 2 and as near as practicable to the drawing-rollers. The roller 2 or both of the rollers 1, 2 may be arranged in a plane above that of the drawing- rollers.
Patent GB-229514-A (GB)
Title: Rotary apparatus for drilling oil wells and the like
IPC: E21B3/04
Filed: 1924-03-22
Abstract: 229,514. Marks, E. C. R., (Union Tool Co.). March 22, 1924. Bore-hole apparatus.-In rotary apparatus for drilling wells &c. comprising a table revoluble on a base, the table 2 is held down on the base 1 by brackets 9 bolted to the base and engaging the vertical and lower horizontal sides of a channel 5 in the table, the brackets having a depending portion 19 with concentric vertical faces engaging complementary surfaces on the table and the base so as to transmit lateral strains to the base and to cause, automatic centering of the table. Oilcups 15 are provided.
Patent GB-1262453-A (GB)
Title: Control system for two or more devices operating simultaneously
Inventor: ECCLES EDWARD STUART
IPC: G05B11/00
Filed: 1969-02-17
Abstract: 1,262,453. Automatic control systems. ROLLS ROYCE Ltd. Feb. 17, 1969 [Feb.15, 1968], No.7432/68. Heading G3R. A system for controlling two or more power units simultaneously comprises means for forming in respect of each unit a first error signal, being the difference between a common demand signal and a feedback signal from the individual unit, means for forming in respect of each first error signal a second error signal, being the difference between the first error signal and the mean of all the first error signals, wherein each unit is individually controlled by means responsive to its respective second error signal and all the units are collectively controlled by the said mean error signal. The units 1, 2, 3 are gas turbines for the propulsion or lift of an aircraft 10 and their throttles 11 are controlled collectively by an electric motor 14 and individually by motors 15 acting through a differential gear-box 13, or motor 14 controls all the throttles 11 directly and motors 15 control individual trimming valves. The gear -box method provides greater reliability because, for each engine, control is taken over by one motor 14 or 15 if the others fail. The arrangement described can be operated in a number of modes; as drawn, engine speed or temperature are controlled according to the invention, but in other modes control is different from the invention claimed. Engine speed or temperature. Motors 15 are controlled by the difference between individual error signals 24 or 32 and their average 26, while motor 14 is controlled by the average 26 alone. The error signals are derived from individual engine speed signals 23 and a common reference 21, or from individual jet pipe temperature signals 31 and a common reference 29, "highest (or lowest) win" devices 33 selecting the appropriate one of these two parameters. Air speed. With switches 50, 51 changed over motor 14 is controlled by the difference between actual air speed 43 and a reference 41 while motors 15 are controlled to produce equal thrust from each engine by comparison of the engine pressure ratio 45 for each engine with the average value 47 for all three. Pitch and roll. If the engines are lift engines, 1 and 3 are placed to control pitch and their motors 15 are controlled differentially by a roll error signal 64 derived from attitude signal 63 and reference 61. Pitch is controlled by engine 2 and 1 and 3 together by pitch error signal 74 derived from attitude signal 73 and a reference 71. The motor 14 controls the overall upward thrust, the signal 43 representing vertical speed in this case.
Patent GB-368071-A (GB)
Title: Improvements in or relating to scanning apparatus for colour or monochromatic television, and the like
IPC: H04N3/04
Filed: 1931-03-11
Abstract: 368,071. Television. B O W TEL L , G. M., 31, Inverness Avenue, Westcliff-on- Sea. March 11, 1931, No. 7457. [Class 40 (iii).] A scanning device comprises one or more mirror drums mounted on a screw-threaded shaft and rotated by pressure applied to move the drum or drums along the axis of the threaded member. The drums E, F, G, mounted on the threaded shaft A and each carrying three mirrors arranged at 120‹ apart on the same transverse section of the drum, are rotated by pressure applied through operating arms (not shown) engaging slots I in a driving sleeve H. The return scanning movement may be effected by a spring B arranged to return the drums to the initial position in a time interval equal to that of the downstroke of the arms, or by an additional pair of arms (not shown) engaging slots in a driving sleeve C. For colour television, the individual mirrors on each drum or the mirrors on successive drums may be allocated to different primary colours. As a further alternative, with the driving speed increased, all the mirrors of successive groups of drums are allocated to the different colours. The drums may be replaced by members carrying the mirrors on radial arms.
Patent GB-1534677-A (GB)
Title: Evacuator device
IPC: A61M27/00
Filed: 1977-02-22
Abstract: 1534677 Suction pumps RICHARDS MFG CO INC 22 Feb 1977 [26 March 1976] 07462/77 Heading A5R An evacuator device for evacuating waste fluid from a closed wound in a patient's body comprises an air-tight collapsible pouch 15 of e.g. plastics material and an expansible member 13 of sponge or expansible hydrophilic material within the pouch, the pouch being held, before use, in a collapsed state by a sleeve (not shown) which is removed by means of e.g. a tear-off strip. On removal of the sleeve the member 13 expands and causes the pouch to expand and evacuate liquid from the wound via a tube 17 further expansion taking place when liquid contacts member 13. A second tube 27 may be connected to the pouch for connecting the pouch to a vacuum system; a tube 65 being provided within the pouch for conveying liquid from tube 17 to tube 27; the tube 65 having openings 69 for use of the device without external suction through tube 27.
Patent GB-1162127-A (GB)
Title: Fastener
Inventor: MONEY GLENN LE ROY
IPC: F16B19/10
Filed: 1967-02-16
Abstract: 1,162,127. Locking nuts. NATIONAL SCREW & MFG. CO. 16 Feb., 1967, No. 7554/67. Heading F2H. A fastener for securing together two members E, F having aligned holes and being inaccessible from one side comprises a screw member B having a shank 10 and a head 11, a threaded sleeve member C fitted on to the shank 10 adjacent to the head and a nut member D fitted on to the shank adjacent its free end, the nut member being provided with a head 15 and a frusto-conical portion 14 which, when the fastener is inserted in the aligned holes and the nut member D is tightened down on the screw member B, forces the sleeve member C to expand in the region adjacent to the nut member D and ride up the frusto-conical portion 14 of the nut member D so as to sandwich securely the two members E, F between the sleeve member C and nut head 15. The screw member B is provided with a portion 20 which extends from the shank 10 and which is arranged to be gripped by a tool when the nut member D is being tightened on the screw member B, the portion 20 being arranged to break from the shank when the nut member D is tightened to a predetermined tension. The head 11 of the screw member B may be provided with an undercut surface 25, the sleeve member C may be chamfered at one or both ends, the thread in the sleeve member C may extend either part or full length of the sleeve member and the head of the nut member D may be frusto-conical so as to fit into a correspondingly shaped recess in one of the members E, F. The thread on the screw member B may have a portion of greater root diameter than the remainder, the maximum diameter of the thread being a constant throughout the entire thread (Figs. 5 and 6, not shown).
Patent GB-1038285-A (GB)
Title: Diallyl esters
IPC: C07C69/80
Filed: 1965-02-22
Abstract: A process for the preparation of diallyl esters of carbocyclic aromatic dicarboxylic acids comprises catalytically transesterifying a dimethyl and/or diethyl ester of the acid with at least equivalent amount of allyl alcohol calculated with reference to the methyl or ethyl ester groups in an inert atmosphere by the gradual addition of allyl alcohol at a temperature above its boiling point, with evolution and removal of the methanol or ethanol, so that a diallyl ester is formed. Aromatic dicarboxylic acids specified include isomeric phthalic acids, diphenyl dicarboxylic and naphthalene dicarboxylic acids 5-chloroisophthalic acid, methyl terephthalic acid and dichloroterephthalic acid.  Transesterification catalysts specified include magnesium methoxide, metallic magnesium butyl titanate or mixtures thereof.  Examples are furnished.
Patent GB-1184821-A (GB)
Title: Polymer Grafting Process
IPC: D06M14/08
Filed: 1967-02-17
Abstract: 1,184,821. Coated polypropylene UNION CARBIDE CORP. 17 Feb., 1967 [18 Feb., 1966; 20 Jan., 1967], No. 7646/67. Heading B2K. [Also in Divisions B5 and C3] Polypropylene discs, which have been impregnated with linseed oil prior to being oxidised, are coated with aluminium-filled phenolic varnish, phenolic/tung oil varnish or alkyd enamel and air dried. In another example, an adhesive comprising the diglycidyl ether of bisphenol-A and a tri-amine or polyamide hardener is applied to the discs and cured.
Patent GB-471976-A (GB)
Title: Improvements in electric motor-operated braking equipments
IPC: H02P3/26
Filed: 1936-03-13
Abstract: 471,976. Electric brakes. BRITISH THOMSON-HOUSTON CO., Ltd. (Allgemeine Elektricitõts-Ges.) March 13, 1936, No. 7664. [Class 103 (i)] A brake 3 for an electric motor 1, applied by a spring or weight, is released by electric - hydraulic apparatus 4, such as is described in Specifications 363,137 ; and 385,042, [Group XXIX], energized during braking from an auxiliary generator 2, driven by the main motor 1. The generator 2 is constructed so that the feed supply to the brake-releasing motor may have full value at a lower speed than the normal speed of the main motor. The brake is normally maintained released by connections of the apparatus 4 to the net 5. To apply the brake a change-over switch 6 is operated to disconnect the net 5 and connect the generator 2 to the apparatus 4. The machines 1 and 2, if of the alternating - current type, may have different synchronous speeds or be coupled by a variable-speed gear. The invention may be applied to a direct-current-operated system, in which case in the braking position the supply to the motor 4 is the main supply bucked by the voltage of a direct-current generator 2 giving at full speed of the motor 1 a voltage 50 per cent greater than that of the main supply.