baber/WOPTO huggingface dataset:
Patent GB-1122464-A (GB)
Title: A method of, and a device for, determining the diameter of rolls of elongated material
IPC: G01B7/12
Filed: 1965-12-13
Abstract: 1,122,464. Selective signalling. ALLMANNA SVENSKA ELEKTRISKA A.B. 13 Dec., 1965 [14 Dec., 1964], No. 52774/65. Heading G4H. [Also in Division G3] The diameter of a roll on to which strip material is being wound is measured by counting the number of pulses, representing the speed of the material, which occur during the interval between a predetermined number of pulses representing the angular speed of the winding roll.
Patent GB-1279578-A (GB)
Title: Improvements in or relating to hoist motor control systems
IPC: H02K49/04
Filed: 1970-11-05
Abstract: 1279578 Control of A.C. motors BROWN BOVERI & CO Ltd 5 Nov 1970 [7 Nov 1969] 52798/70 Heading H2J A hoist motor 1 is coupled to an eddy-current brake 2 which, upon switching off 1 by contactor I, is first connected by II to the threephase supply and then by a contactor III to a D.C. supply 3. A mechanical brake 4 provides final stopping and holding. The eddy current brake has a solid rotor comprising lateral copper rings or discs with radial slits. Its stator has a greater (at least three times) number of poles than has the motor 1, which is an induction motor, and it may be operated as a motor for a short time, e.g. for starting or for creep speeds.
Patent GB-1282762-A (GB)
Title: Improved union joints for tubing
Inventor: BEYELER EDOUARD
IPC: F16L17/067
Filed: 1969-10-29
Abstract: 1282762 Pipe couplings; joint-making packing E BEYELER 29 Oct 1969 52917/69 Headings F2B and F2G A coupling for joining two tubes 1, 2 comprises two annular packing members 5, 6 fitted over the respective pipes and provided with annular lips 52, 62 and annular slits 53, 63 into which may be inverted frusto-conical metal rings 9, 10, the members 5, 6 being compressed axially and radially together by rings 3, 4 which are screwed &c. together to form a fluid-tight joint. The tightening of the rings 3, 4 axially compresses the lips 52, 62 against each other and rings 9, 10 against each other and against the ends of the pipes 1, 2, respectively, and radially compresses the lips 54, 64 against the respective tubes. The packing members 5, 6 may be made of materials such as rubber, metal or a synthetic material. The rings 3, 4, shown screw-threaded, may alternatively provide a bayonet &c. connection.
Patent GB-1422510-A (GB)
Title: Slider with a releasable locking mechanism for concealed sliding clasp fasteners
IPC: A44B19/30
Filed: 1974-12-09
Abstract: 1422510 A slider for a concealed sliding clasp fastener YOSHIDA KOGYO KK 9 Dec 1974 [18 Dec 1973] 53076/74 Heading E2S A slider for a concealed sliding clasp fastener 10, including a body 10 having a flared front end and a contracted rear end, and a separator 14 positioned centrally at said front end of said body to co-operate therewith to define a substantially Y-shaped guide channel therethrough has a releasable locking mechanism which comprises, in combination, a pair of ears 15, projecting upwardly from said separator 14 and extending in the longitudinal direction of said slider substantially in spaced parallelism, a locking pawl 18 arranged longitudinally between the ears of said separator, and having a rear end projecting beyond said separator and an upwardly opening recess 21 formed adjacent the front end 20 thereof and a retainer pin 22, supported by, and extending transversely between, said ears 15 of said separator over said locking pawl, said retainer pin 22 being arranged in registered relationship to said recess in said locking pawl. According to the invention also a spring 17 normally biases the locking pawl 18 in such a manner that the recess 21 in the locking pawl releasably engages the retainer pin 22 and the rear end 19 of the locking pawl 18 projects into the guide channel of the body, and a pull tab 23 is pivotally connected to the locking pawl which, when pulled, is effective to move the rear end 19 of the locking pawl 18 away from the guide channel of the body against the bias of said spring. The spring comprises a leaf 17 arranged longitudinally between the pair of ears 15, the pull tab 23 being pivotally connected to the locking pawl 18 by a connector ring 24.
Patent GB-1255926-A (GB)
Title: Magnetic loop induction arrangements
Inventor: PEARSON FREDERICK JOHN
IPC: H04B5/00
Filed: 1967-11-23
Abstract: 1,255,926. Inductive signalling. COVENTRY, CORPORATION OF. 11 Feb., 1969 [23 Nov., 1967], No. 53383/67. Heading H4U. In an inductive signalling system wherein a loop ABCDEF extends around a classroom or the like, Fig. 1, the wires ABC and DEF are of higher specific resistance than the cross-wires AF, CD and the connection BE to a microphone amplifier, the resistance per unit length of the cross-wires being about one tenth of that of the wires ABC, DEF. The current in loop BAFE is proportional to the distance BC = ED and the current in loop BCDE is proportional to the distance AB = FE. It is stated that this reduces interference with adjacent loops in the direction XX and to some extent perpendicular to XX. The position of the connections B, E is adjusted to suit working conditions. Two complementary loop arrangements of the type described may be placed together as shown in Fig. 2, to provide a further reduction in interference and may be connected so that points E and B<SP>1</SP> are connected to one amplifier terminal and points E<SP>1</SP> and B to the other.
Patent GB-1135190-A (GB)
Title: Silver halide dispersions
IPC: G03C8/06
Filed: 1965-12-16
Abstract: 1,135,190. Preparing photographic silver halide emulsion. EASTMAN KODAK CO. Dec.16, 1965 [Dec.21, 1964], No.53385/65. Heading G2C. A photographic silver halide emulsion is made by reacting a dissolved water-soluble silver salt with a dissolved water-soluble halide in a neutral aqueous medium in the presence of a polymer containing repeating units which are vinyl amine units and acrylic acid units in a ratio from 1:1 to 1.8:1, or in an ammoniacal aqueous medium in the presence of a polymer containing vinyl amine units and acrylic acid units in a ratio of from 1.8:1 to 1:1.8 and from 0 to 5 ethyl acrylate units. Before coating on to a support, the emulsion is ripened and chemically sensitized. The silver halide crystals obtained in the dipersion are tabular octahedral of average grain size diameter 1.03 to 1.16 micons or cube-shaped of average grain size diameter 0.28 to 0.89 microns.
Patent GB-1334245-A (GB)
Title: Burner ignition and control systems
IPC: F23N5/20
Filed: 1970-11-12
Abstract: 1334245 Burner ignition and control HONEYWELL Inc 12 Nov 1970 [27 Feb 1969] 53966/70 Heading F4T  An ignition and control system for a burner 10 which has a spark igniter 14, 15, includes means such as a relaxation oscillator including S.C.R. Q4 for energizing the igniter, a flame detector such as flame rod 16, a switch such as S.C.R. Q2 for controlling a fuel supply valve 25, and a safety timer including capacitive voltage divider 50, 51, the timer being energized from supply terminals 11, 12 on a demand for heat but the energizing charge leaking away through timing resistors 26, 81 unless the flame rod 16 senses flame at the burner head and so supplies energy on line 42 to maintain the charge on the capacitors 50, 51 and on line 41 to disable the igniter 14, 15. Unless the flame rod senses flame within a predetermined start-up period or should the flame extinguish during burner operation, the charge on capacitors 26, 81 will decay causing S.C.R. Q2 to switch off the fuel valve 25, and the relaxation oscillator and thus the igniter.
Patent GB-1237672-A (GB)
Title: Method for bonding a crystal to a solid delay medium
IPC: C04B37/04
Filed: 1969-11-06
Abstract: 1,237,672. Soldering. CORNING GLASS WORKS. 6 Nov., 1969 [15 Nov., 1968], No. 54413/69. Heading B3R. A method for forming a bond between a crystal 10 and a solid delay medium 18 comprises the steps of depositing metallic base layers 12, 14, 20 on the surfaces to be joined and then depositing on at least one of the layers a further layer of indium in a non-oxidizing environment, pressing the surfaces together at a pressure of at least 90 p.s.i., heating the indium to at least its melting point for at least 15 seconds and reducing the temperature below said melting point while under pressure so that indium solidifies to form said bond. The crystal 10 is a piezoelectric material and may be ceramic or quartz. The layer 12 is preferably a nickelchromium alloy or a layer of chromium followed by a layer of nickel can be substituted for the alloy after which a layer 14 of gold is deposited. These layers 12, 14 are deposited in a non- oxidizing environment such as an inert gas or vacuum. The delay medium 18 may be silica, glass or glass ceramic on which is deposited a nickel-chromium base layer 20 followed by a layer 22 of indium. The layers 12, 14, 20, 22 may be deposited by vacuum deposition, sputtering, vacuum evaporation or electron beam evaporation. Prior to mating it may be desirable to burnish the surface of the indium layer 22 with a nylon cloth to remove any oxides and surface impurities. The indium layer may be applied to either or both of the base layers. Alternatively the base layers may comprise successive coatings of aluminium, nickel and gold or may just be platinum or an alloy of gold and platinum.
Patent GB-1484689-A (GB)
Title: Lamps
IPC: C08F279/02
Filed: 1974-12-18
Abstract: 1484689 Acrylonitrile copolymer lenses MONSANTO CO 18 Dec 1974 [19 Dec 1973] 54708/74 Headings C3P and C3G [Also in Division F4]  A lens of a vehicle exterior lamp comprises a copolymer of (A) acrylonitrile or a mixture thereof with up to 20%, based on total nitrile weight, of methacrylonitrile, and (B) a substituted or unsubstituted monovinyl aromatic monomer, which may be replaced in an amount up to 10% by weight by a C 1-4  alkyl vinyl ether, a vinyl ester, a C 1-4  alkyl acrylate, a C 2-4  alkyl methacrylate, a C 1-4  alkyl itaconate or C 2-4  α-olefin, or in an amount up to 100% by weight by methyl methacrylate, one ratio of A to B being from 55 : 45 to 85 : 15. The lens composition may further include up to 30% by weight of a synthetic or natural rubber component whose refractive index is substantially the same as that of the copolymer. The vinyl monomer (B) is preferably styrene or α-methyl styrene, but other substituted styrenes, vinyl naphthalenes and vinyl anthracene are disclosed. The rubber component may be polybutadiene, isoprene, neoprene, a nitrile rubber, acrylate rubber, acrylonitrile-butadiene copolymer, ethylenepropylene copolymer or a chlorinated rubber, and may be incorporated by direct polymerization of the monomers, grafting or polyblending.
Patent GB-1360954-A (GB)
Title: Means for joining concrete piles in end-to-end relation
IPC: E02D5/52
Filed: 1972-11-27
Abstract: 1360954 Joining concrete piles M LAINE and M LOUKOLA 27 Nov 1972 [13 Dec 1971] 54754/72 Heading F2G In order to join the abutting end shoes 13, 14 of two concrete piles, I or C-section rails 7 are hammered into aligned channel-section members 9, 10, so deforming the interengaging flanges 8 and 11, 12 as to provide effective gripping between them. The members 9 and 10 may be welded to the shoes 13, 14 and to the pile reinforcement 23. Ribs 15 bite into the underfaces of flanges 8 or into the faces of flanges 11, 12. The flanges 8 or 11, 12 may be flexed by the interengagement.
Patent GB-1249638-A (GB)
Title: Improvements in mechanisms for driving the cutter elements of a rotary mowing machine
IPC: A01D34/76
Filed: 1968-11-19
Abstract: 1,249,638. Rotary mowing machine. KUHN FRERES & CIE. 19 Nov., 1968 [22 Dec., 1967], No. 54861/68. Heading A1F. A rotary mowing machine includes bridge pieces 26 interconnecting the lower ends of bearing blocks generally indicated at 117a, 117b the bearing blocks supporting an inner race 16 of pinions 14 which drive the cutter blades 8 and being fastened by studs 19 to the upper section 2 of a two-section casing. In an alternative form (Fig. 6, not shown), a bridge piece 28 interconnects all the bearing blocks. To avoid jamming of the gear teeth, an assymetrical arrangement of the gears 13 and 14 is provided.
Patent GB-1172224-A (GB)
Title: Improvements relating to Pneumatic Devices for Driving Fasteners or like purposes
Inventor: HILLIER MALCOLM EDWIN
IPC: B25C1/04
Filed: 1965-12-29
Abstract: 1,172,224. Fastener driving tools. GASTON E. MARBAIX Ltd. 29 Dec., 1966 [29 Dec., 1965], No. 55142/65. Heading B4C. A pneumatically-actuated fastener driving tool comprises a piston 7 reciprooable in a cylinder 5 which is mounted in a housing 1, the open ends of the cylinder being controlled by first and second main valves 10 and 14. The main valve 10 is in the form of a differential piston slidable in bores 3, 4 formed in a cap 3 and the body 1, a sealing ring lOC being fitted in the valve for engagement with the end of the cylinder; a piston-actuated exhaust valve 11 is located in the valve 10. The main valve 14 is provided with an opening 14H through which a driving blade 8 moves, a groove 8A being formed in the blade for controlling a ball valve 16 located in the main valve 14. In operation, with the tool in the position shown in Fig. 1, air from a chamber 2A flows through a triggeroperated valve 21, passages 21B, a chamber 15, passage 1A and a chamber 13A to maintain both main valves in contact with the ends of the cylinder. Due to the pressure in the chamber I3A, the valve 11 is opened so that the air above the piston is exhausted. Upon actuation of the valve 21, the air pressure is cut-off from the chambers 13A, 15 so that the main valves move away from the ends of the cylinder thereby allowing air to act on the driving piston 7. At the start of its downward stroke, the ball valve 16 is opened thereby allowing the air below the piston to be initially exhausted through passages 14K, 14J, chamber 15, passage 21B, valve 21 and passage 23. When the valve 14 drops the remaining air is exhausted through ports and an annular groove 14L in the valve 14 and ports 1B in the body 1. In the modification shown in Fig. 6, the trigger-operated valve 35 is adapted to control the air in chambers 13A, 15 and is arranged to operate in conjunction with a valve 37A in order to exhaust the pressure in the chamber 13A, the valve 37A having to be opened by pressure on the workpiece before the tool can be fired; the ball valve 16 is replaced by a valve 30 movable in the main valve 10 and body 13. The piston 7 may be retained in its raised position by means of a magnet (40, Fig. 4) or by a spring- clip and detent device and a resilient buffer ring 14C provided; alternatively, the buffer ring may be dispensed with and the valve 14 itself made of a resilient material (Fig. 8). In the further embodiment shown in Fig. 13, the main valve 206 is of annular form and is slidable on a boss 201 formed on a cylinder cap 200 secured to the body 101. The control of the exhaust above and below the drive piston 108 is controlled by means of a valve 203 in the boss 201. The lower main valve 128 is urged away from its seat by means of small pistons 130.
Patent GB-1369527-A (GB)
Title: Containers for fluid materials
IPC: B65D83/14
Filed: 1972-12-01
Abstract: 1369527 Portable containers &c C E LEBEL and P I I KARMITZ 1 Dec 1972 [2 Dec 1971] 55707/72 Heading B8D [Also in Division F1] A container for fluid material has, to give an indication of the level of product therein, a base comprising a first portion 2 lying in a horizontal plane, and a second portion 6 diverging upwardly from the plane, the arrangement being such that when the product therein exceeds a preselected amount the container stands on said first portion and when the fluid falls below said preselected amount the container topples in the direction of the second portion. To facilitate toppling, the container is provided with a weight 8 and the dispensing outlet 7 is offset. The weight, which may comprise one or more magnets, may be located within the container, outside the container, or in an external recess in the base of the container. In an alternative embodiment, Fig. 6 (not shown), the base is a removable member (35) adapted to be press-fitted on to a conventional container. In a further alternative embodiment, Fig. 7 (not shown), the toppling edge is variable by breaking off points (45) on the base of the container.
Patent GB-1212009-A (GB)
Title: Two-roll machine for rolling sheet metal
IPC: B21D5/14
Filed: 1967-12-14
Abstract: 1,212,009. Two-roll sheet metal bender. KAUFMANN TOOL & ENG. CORP. 14 Dec., 1967 [15 Dec., 1966], No. 56912/67. Heading B3E. A two-roll sheet metal bender comprises a roll with a rigid periphery and another roll with a deformable peripheral surface, the latter roll having portions of the surface removed to provide spaces into which the deformable material can flow when radial pressure is applied to the roll. The rigid roll 16 is supported in bearings 54a and 54b mounted in a frame 18. The deformable roll 12 consists of a rigid sleeve 26 covered with urethane rubber 70. The covering has spaced annular grooves 74, or is made up of separate sections (80), Fig. 3 (not shown) spaced apart by rings of smaller diameter. When a sheet metal workpiece S is passed through the rollers, the pressure of the upper roller causes a local depression to appear in the upper roller. The force required to produce this depression is reduced, as compared with a solid roller, since the displaced urethane rubber can move axially into the grooves. The sleeve 26 has a sprocket wheel 28 secured to one end which is chain driven by a motor 32 through a reduction gear 30. The sleeve is mounted on bearings 25 which are supported by a spindle 20. The spindle 20 is carried in blocks 22 which are slidably mounted in the frame and are moved to provide the pressure between the rolls by an hydraulic cylinder 38 connected to the blocks 22 by linkage 44 and toggle links 46. A handwheel 48 initially varies the spacing between the rolls to determine the pressure developed. The side 56 of the frame is pivotally mounted at 58 and is swung outwards by an hydraulic motor 60. The machine is suitable for bending material up to # inch thick, the axial length of the grooves 74 being  inch and their radial depth not less than 1/4 inch.
Patent GB-1118863-A (GB)
Title: Apparatus for winding thin film into a roll at high speed
IPC: B65H18/10
Filed: 1966-12-20
Abstract: 1,118,863. Winding webs. JOHN DUSENBERY CO. Inc. 20 Dec., 1966 [19 Jan., 1966], No. 57049/66. Heading B6B. In a winding machine for a plurality of webs longitudinally slit from a single web, the webs are alternately wound on to spindle driven webrolls 22, each web 13 passing around an air bearing 29 and a contact roller 30 mounted on arm 24 pivotally mounted on a pin 26 parallel to the web-roll axis. Each pin 26 is carried by the spaced arms of a support member 25 adjustably positioned on a rail 27 connected to an air manifold 33. A pipe 31 connects the manifold to the air bearing 29 which comprises either a porous tubular member of sintered metal (Fig. 5) or a metal tubular member with a plurality of radial holes through the wall (Fig. 6). Both types of air bearing are secured by a screw (43) to a metal bushing (40, Fig. 5) force fitted into a hole in the arm 24, the bearing seating against a flange (41) of greater diameter than the bearing. The contact roller 30 is rotatably mounted on a shaft (49) force fitted into a hole in the arm 24, and has an outer covering of resilient material such as rubber. Alternatively, the roller 30 may be flanged (Fig. 7) to provide transverse registering of the web on the webroll. A spring loaded pawl (36, Fig. 2) may be used to hold the lever 24 away from the surface of the web-roll, so that it may be changed.
Patent GB-1458675-A (GB)
Title: Timing system
IPC: G04C21/32
Filed: 1973-12-10
Abstract: 1458675 Timing system INDUSTRIAS RUMBO S A 10 Dec 1973 [19 Dec 1972] 57049/73 Heading G3T [Also in Division G4] A timing system provides signals at predetermined times to receiving devices 13, 13',... The devices may for example be loud-speakers for calling people at different times in a hotel. Signals are sent to the devices (at times independently selected for each device) under the control of a rotary switch or "clock" 5 having "hands" which connect current to a plurality of fixed contacts each of these is connected to a corresponding fixed contact on a series of switches 2, 3,... (each of which switches corresponds to a device 13, 13' ...) and has a wiper which is aligned beforehand with a respective fixed contact chosen to determine the time of transmission to the corresponding device. Each switch 2 is paired with a corresponding switch 2', their wipers being mechanically linked. The rest position of a wiper is determined by selection of a switch 10, 10', ... and the wiper is moved thereto by means of a device-selecting  switch 6 to actuate a motor 11 whose shaft 9 is coupled by a selected electromagnetic coupling 8 to the wiper. Each set of switches 6, 3, 3', has a relay 12 which, when "clock" 5 reaches the time for operating the respective device 13, actuates a circuit to start a signal generator 1 and another circuit to connect the generator output to the device. The signal may be cut off by means of a switch 14.... (e.g. at the respective device) which actuates a relay 7 to energize motor 11 (when no switch 10 is depressed) so that the corresponding cursor moves to a "O" position. Alternatively, selection of a switch 14 may actuate a relay 15 which disconnects the device without moving the cursor. Modifications and alternative embodiments (e.g. using counters) are also mentioned Fig. 2, (not shown).
Patent GB-1437544-A (GB)
Title: Signal seeking tuning system
IPC: H03L7/12
Filed: 1973-12-12
Abstract: 1437544 Phase lock systems MOTOROLA Inc 12 Dec 1973 [26 Jan 1973] 57611/73 Heading H3Q A signal seeking timing system for a receiver of the stop or tuning type comprises a phase lock loop including a mixer stage 14, a VCO 16, a phase detector 44 for comparing the mixer output with a reference oscillator (48) output for controlling the VCO 16 via a charge storage arrangement 56 and an arrangement 50-54; 64, 66; 74-86 for overriding the AFC output from the phase detector for varying the frequency of the VCO 16 in a predetermined manner. The system may include first and second override arrangements 64-86 with set reset states of operation for selectively overriding the phase detector output. Normally, when the receiver is tuned to a particular station, the video carrier at the output of I.F. amplifier 18 is maintained in synchronism with the output of a reference oscillator 48 via an arrangement including a phase detector 44, logic gates 50-55, a charge pump 46 and a charge storage arrangement 56 including a capacitor 58. Thus if a phase or a frequency difference is detected at 44, the inputs of the charge pump 46 are such that the capacitor 58 is either charged or discharged for retuning the VCO to its initial value. If the receiver is to be tuned to a different input frequency, then one of the switches 74, 76, e.g. touch switches, is activated for setting the associated flip-flop and thereby control operation of the charge pump 46 for sweeping the VCO up or down as desired. When the VCO is tuned correctly to the new desired frequency, a signal at the audio carrier is passed via a detector 90 to an AND gate 92 which also receives a signal from an amplitude comparator 94 indicating that the video carrier is also of sufficient magnitude and a monostable multivibrator 100 is triggered for resetting the flip-flops 64, 66. When the upper end of the sweep range is reached, a PUT 104 fires to discharge capacitor 58 and flip-flop 64 is simultaneously set via OR gate 102 for tuning the receiver to the lowest input frequency desired to be recevied. A gated AGC signal is applied to the IF as well as the RF and mixer stages. The phase detector may be of the digital type as shown or of the analogue type.