baber/WOPTO huggingface dataset:
Patent GB-1348224-A (GB)
Title: Film feed mechanism
IPC: G03B1/22
Filed: 1972-05-11
Abstract: 1348224 Cinematography ARNOLD & RICHTER KG 11 May 1972 [30 June 1971] 22215/72 Heading G2F  An intermittent film feed mechanism includes two claw arms 11, 12, a registration member 14, a shaft 4 powered intermittently by an electric motor (not shown) through clutch member 47 and cams 7, 10 causing the arms 11, 12 to produce a film feeding movement, cams 8, 9 causing the film penetration movement and cam 13 controlling the member 14. As shown each claw arm 11, 12 carries two claws 21, 22 and the member 14 has a single pin 29. A lever 16 is providedtocounterbalance the faces set up by the other members on the shaft 4. The arms 11, 12 and lever 16 are pivoted about the axis of pin 24 and have forked ends. Levers 27' may be moved to adjust the position of pins 24 to thereby adjust the length of the feed movement of the claws 11, 12. The shaft 4 also carries flywheels 17, 18. The electric motor may be of the disc rotor type and carries a clutch member co-operating with the member 47. Rubber layer 48 provides sound proofing.
Patent GB-1087149-A (GB)
Title: Metal forming apparatus
IPC: B30B1/10
Filed: 1966-05-19
Abstract: 1,087,149. Jointing by stamping. AMP Inc. May 19, 1966 [June 12, 1965], No. 22324/66. Heading B3Q. A crimping &c. press comprises a ram 3 carrying crimping dies 6, 7 and reciprocated by a toggle link 23, a lever 26 for operating the link 23 being moved to carry its pivot 27 over the ram, partially straightening the toggle, before the lever is turned for completing the straightening and thus the ram-stroke. The lever is supported by rollers 28, 33, guided in slots 29, 34 in the side plates 1 of the press. An initial part of the left-hand slot 34 is parallel to, and of the same length as, the other slot, so that the lever is first moved horizontally. With the rollers 28 at the right-hand end of the slots 29, the lever is turned about them as the other end of the lever is guided by the arcuate extensions of the left-hand slots. Drive is from a fluid-pressure cylinder 30 pivoted between the side-plates 1. Feeding.-A feed-tongue 39, pressed clockwise by a spring 43, is carried by a lever 37 and may be adjusted by a screw 42. The lever 37 is biased clockwise about its pivot 38 by a spring 40 into engagement with one of the rollers 33 on the toggle-lever 26, so that the feed finger is operated by the toggle-lever. A screw-stop 41 co-operates with the feed-lever 37, and a spring-pressed workholder 22 keeps a strip of connectors in a channel 16 in the press-table. Shearing.-A shear blade 5 on the ram, cooperating with a pair of stationary blades 14 on the table, severs a bridge between adjacent connectors.
Patent GB-983302-A (GB)
Title: Improved driving assembly for combined harvester-threshers
IPC: F16H9/14
Filed: 1961-06-21
Abstract: 983,302. Combine-harvesters. MASSEYFERGUSON SERVICES N.V. June 21, 1961 [July 6, 1960] No. 22360/61. Heading A1F. [Also in Division F2] A variable-speed transmission for driving a component of a combine harvesterthresher comprises a variable diameter pulley (not shown) driving through a belt 47 a variable diameter pulley having flanges 86, 87 urged together by a spring and fast in rotation with a stub shaft 75 which is adjustable about an output shaft 70 to adjust the belt 47. The stub shaft 75 drives the output shaft 70 through a twospeed gear comprising a pinion 76 slideably splined on the shaft 75 and selectively meshing a ring gear 72 fast with the shaft 70 to give a low ratio range and meshing, through an idler (not shown) a pinion 73 on the shaft 70 to give a higher ratio range. The pulley 86, 87 is adjusted around the shaft 70 by mounting the stub shaft 75 in a housing 74 which is fitted in a circular track formed in a wall portion 71 of the harvester in which the shaft 70 is rotatably supported. The housing 74 can be adjusted in its track by a screw arrangement and clamped to the wall 71 in the selected position.
Patent GB-651931-A (GB)
Title: Improvements in halogen containing derivatives of butadiene sulphone
Filed: 1948-08-25
Abstract: 3-Bromo-4-trichloromethyl tetrahydro thiophene-1,1-dioxide is obtained by subjecting butadiene sulphone and trichlorobromomethane in the proportion of at least two mols. of trichlorobromomethane to one mol. of butadiene sulphone to the action of either actinic light or a diacyl peroxide at elevated temperature at which the diacyl peroxide is decomposed, until 3 - bromo - 4 - trichloromethyl tetrahydro thiophene-1,1-dioxide is formed and separating said product.  The reaction initiator is preferably added in portions throughout the course of the reaction and may be effected at between 50 DEG  C. and 120 DEG  C. depending on the peroxide used as initiator.  The product may be dehydrohalogenated by contacting it with an aqueous solution containing an alkali metal hydroxide to give an unsaturated derivative, 4-dichloromethylene 4,5-dihydro thiophene 1,1-dioxide, and this compound as well as the main product are stated to be useful as insecticides.  In examples: (1) butadiene sulphone is added to trichlorobromomethane and a solution of diacetyl peroxide in trichlorobromomethane then added in five equal portions at half-hour intervals, the temperature being maintained at 80-85 DEG  C. 3 - Bromo - 4 - trichloromethyl tetrahydro thiophene-1,1-dioxide is obtained; (2) the same product is obtained by placing a solution of butadiene sulphone in trichlorobromomethane in a glass apparatus containing a spiral neon fluorescent lamp.  The air is displaced with nitrogen and the light turned on for 12 hours; (3) the product of (1) is dissolved in ethyl alcohol and titrated with potassium hydroxide solution to the colour change using phenolphthalein as indicator. The mixture is filtered and the dehydrohalogenated product obtained from the filtrate.  The Specification as open to inspection under Sect. 91 refers to the use of any peroxide compound as reaction initiator.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1150678-A (GB)
Title: Drying Device for Freshly Printed Sheets
IPC: B41F23/04
Filed: 1967-05-15
Abstract: 1,150,678. Printing-machines. ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER A.G. 15 May, 1967 [21 May, 1966], No. 22366/67. Heading B6C. [Also in Division F4] A device for drying ink on printed sheets from a printing machine 1 comprises a vertical conveyer in which two separate pairs of chain conveyers (9, 10), Fig. 2 (not shown), each carry grippers 12, 14 respectively for the leading and trailing edges of the sheets. The sheets are heated by hot air in a heating unit 39 as they travel upwardly and cooled by cold air in a cooling unit 45 as they travel downwardly. The cold air may be humidified to replenish the water content of the sheets. After leaving the drying device, the sheets are further cooled by water-cooled rollers 46, 48 and the non- printed or dry sides of the sheets are moistened by sprays 50, 51. The sheets are conveyed faceupwardly to a laying-out table 49 by a conveyer 38. Guide bars 40 support the sheets as they pass through the heating and cooling units 39, 45. Each conveyer (9, 10) comprises two chains driven by sprocket gears, e.g. 17, on common axles, the gears (15-18), Figs. 3-5 (not shown), driving the outer conveyer (9) being disengageable from their axles to effect adjustment of the separation of the grippers 12, 14 in order to accommodate different sheet lengths. The heating and cooling units are separated by an insulating partition 68.
Patent GB-203501-A (GB)
Title: Improvements connected with cover or tyre clips for use with vulcanizers
IPC: B29C35/00
Filed: 1922-08-17
Abstract: 203,501. Milburn, S. Aug. 17, 1922. Vulcanizing, pressing devices for; vulcanizing-clamps.-A clamp for holding tyre-covers on a mandrel during vulcanization comprises members interposed between the cover and the mandrel, and between which and the clamp-jaws the cover is gripped. Members 7 smooth on the inside to reduce friction between them and the mandrel, and roughened on the outside are placed between a mandrel 8 and cover 9, and to lugs 13 on these members are pivoted links 12, the ends of which are connected to a nut 10 by pivoted links 11. Passing through the nut 10 is a screw 6 bearing on the mandrel 8. On drawing the nut 10 downwards, adjustable jaws 19 on the links 12 are forced against the cover 9 pressing equally all the layers of canvas between themselves and the members 7, and the cover 9 is drawn over the mandrel 8. The clamp may be used in conjunction with a wrapping.
Patent GB-658326-A (GB)
Title: Improvements in or relating to the recovery of purified selenium-sulfur mixtures from crude selenium and sulfur containing material
IPC: C01B19/02
Filed: 1949-08-29
Abstract: In the process of recovering a purified sulphur-selenium mixture from crude material containing the same having a sulphur content of at least one-seventh the selenium content by weight, by heating the material out of contact with air in a mineral acid such as sulphuric or phosphoric acids, which have a boiling point above the liquefaction temperature of the material, followed by washing of the resultant mass with water, the mass is further purified by heating out of contact with air in boiling water thus freeing the residue from the acid treatment.  The sulphur-selenium ratio is preferably between 1 : 7 and 1 : 2 by weight, and sulphur may be added to the crude material to ensure the lower limit is attained.
Patent GB-387672-A (GB)
Title: Improvements relating to lamp shades
IPC: F21V1/02
Filed: 1931-08-07
Abstract: 387,672. Lampshade-holders. ROBERTSON, D. and KINCH, C., 78, St. Agnes Place, Kennington, London. Aug. 7, 1931, No. 22397. [Class 75 (ii).] Means for securing a lampshade to a supporting fitting comprises oppositely disposed members secured to the ring of the shade and engaging the ends of the radial arms of the supporting fitting with sufficient friction to ensure the shade remaining in any position in which it is set. In the form shown in Fig. 1, the supporting fitting is provided with a central portion d adapted to be secured to an electric lamp holder and with radial arms a<1> the ends of which are gripped in sockets formed by coiled springs b<1> having ends b<2> engaging the wire ring c of the shade. Alternatively, sockets e, Fig. 4, may be welded or otherwise integrally secured to the ring c, and the sockets may be flared or the ends of the radial arms may be tapered to facilitate engagement, the sockets may be split and provided with lugs f to receive a binding screw, or, as shown in Fig. 5, they may be flanged to bear against collars formed integrally with or secured near the ends of the radial arms.
Patent GB-857659-A (GB)
Title: Improvements in, or relating to, electric tumbler switches
Inventor: THOMPSON JAMES FRANCIS
IPC: H01H23/16
Filed: 1956-07-20
Abstract: 857,659. Tumbler switches. WANDSWORTH ELECTRICAL MANUFACTURING CO. Ltd. July 22, 1957 [July 20, 1956], No. 22476/56. Class 38 (5). In a switch, particularly for A.C. circuits, having the moving contacts 13 mounted on an insulating block 15 and moved relative to the fixed contacts 12 by a dolly 31 pivoted within a bridge 4 fixed to the switch base 1, the block 15 carries a spring-loaded stud 21 which is reciprocable in carrier 18, 19 depending from the bridge 4 and embracing and pivotally supporting the dolly so that the block, carrier and bridge can be assembled as a single unit prior to the fixing of the bridge upon the base. In the double-pole switch shown, the upstanding arms 19 of the carrier are attached to the bridge 4 by screws 34 which have non-threaded portions 35 to allow slight relative movement and so equalize the contact pressure. Each pair of moving contacts 13 is carried on a bar 14 which is secured to the block 15 by a rivet 17 also allowing slight movement. The stud 21 is cammed down to open the contacts by the arm 27 of a bell-crank lever 27, 28 which is pivoted at 29 to an inverted U-shaped bracket 30 secured to the dolly. The bracket 30 is pivoted about a pin 32 in the bridge 4 and the bifurcated arm 28 of the bell-crank lever embraces a pin 37 fixed to the carrier and coaxial with screws 34. A compression spring 39 surrounds the arm 28 of bell-crank lever between the pin 37 and the arm 27 to retain the switch in either of its set positions.
Patent GB-1310126-A (GB)
Title: Process of applying photoresist to substrates
IPC: G03C1/74
Filed: 1970-05-08
Abstract: 1310126 Coating apparatus SHIPLEY CO Inc 8 May 1970 [8 May 1969] 22479/70 Heading B2L [Also in Division G2]  A coating apparatus having means for controlling the capillarity, tension and position of the applicators comprises several wicks 21 of which three are shown mounted in a frame 22. Each wick has enlarged edges 21a and 21b  for gripping, one enlarged end 21a of each wick fitting within a groove 24 in a mounting bar 25 and the other, 21b, being secured within grooves 27 provided in tension bars 28. The longer leg of each U-shaped mounting bar is connected to the frame 22 by an adjusting screw which allows the mounting bars to be levelled with respect to the substrate 1 being coated. The tension bars 28 are free to slide vertically and therefore permit the wicks 21 to be tensioned to control their thickness and therefore to control the pressure of the wicks against the substrate 1. The tension bars 28 are secured to the frames 22 by adjustment screws 29 which apply tension to the bars 28. The wicks 21, mounting bars 25 and tension bars 28 are stacked in a cavity 30 in the frame 22 between frame end pieces 31 and 32. A capillarity adjustment bar 33 bears against the stacked parts to squeeze the wick by means of adjustment screws 34 and 35 and frame end piece 32. The capillarity bar 33 exerts uniform force on each wick 21 since the mounting bars 25, tension bars 28 and vertical adjustment screws 29 are free to slide within the frame 22. The liquid to be applied by the wicks is fed in through hoses 39.
Patent GB-701851-A (GB)
Title: Electrical pulse circuits
Inventor: STEAD LESLIE GEORGE
IPC: G06F7/38
Filed: 1951-09-26
Abstract: 701,851. Digital electric calculating apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 18, 1952 [Sept. 26, 1951], No. 22541/51. Class 106 (1) [Also in Group XL (c)] A modulus two adder comprises at least two ring modulators connected in cascade and arranged to be controlled by electrical digit pulses to be added, the first ring modulator being arranged to be fed with short electrical interrogating pulses. The circuits described give the digit of least significance of the binary sum of the digit pulses applied. In an arrangement for adding two binary digits applied at inputs 1 and 2, two ring modulators are biased so that current through the rectifiers reverses when the respective input changes from zero volts (digit "o") to V volts (digit "1"). A short, positive-going interrogating pulse applied via an input transformer T1 midway between the changeover points of the binary digit inputs, causes a positive-going or negative going pulse across the common inductor 2 according to whether a "0" signal or a "1" signal is present at input 1. Similarly, the pulse appearing across the inductor 2 will cause a pulse of like or opposite polarity across a transformer T3 according to whether a "0" signal or a "1" signal is present at input 2. To overcome the effect of possible spurious output pulses a biasing pulse is applied to the centretapping of the secondary winding of transformer T3, and the cathode of a double triode VI, V2 is biased so that one side conducts only when the grid voltage exceeds the bias voltage V. The output is registered on a trigger pair V3, V4. Instead of the common inductor 2 between the ring modulators, a transformer counting may be used. The circuit may be extended for more than two inputs by employing further transformers and rectifiers. The rectifiers may be thermionic, crystal diodes, or metal rectifiers.
Patent GB-649865-A (GB)
Title: Improvements in mercury pump
IPC: F04D1/14
Filed: 1949-08-26
Abstract: 649,865. Centrifugal pumps. MATHIESON CHEMICAL CORPORATION. Aug. 26, 1948, No. 22549. Convention date, Sept. 16, 1947. [Class 110(1)] Pure mercury or a liquid amalgam thereof enters the lower part of a pump chamber 1 and is given a motion of revolution about the vertical axis of the pump by means of an impeller blade 2 having substantially the shape of the vertical crosssection of the chamber, whereby it overflows over a rim 14 and under a trap 9 into a discharge trough 8. Excessive agitation of the mercury or amalgam, which might lead to oxidation and separation into a granular mass of discrete particles, is prevented by filling the space between its surface 13 and a cover 5 with water which is supplied and discharged through pipes 11, 12.
Patent GB-959281-A (GB)
Title: Servo motor apparatus
Inventor: SUMMERLIN FREDERICK ARTHUR
IPC: B23Q5/40
Filed: 1959-07-01
Abstract: 959,281. Hydraulic clutches. SPERRY GYROSCOPE CO. Ltd. Sept. 30, 1960 [July 1, 1959], No. 22645/59. Heading F2C. [Also in Division B3] Apparatus for driving a shaft, such as the leadscrew of a gear grinding machine comprises a first motor 9 for applying a torque to the shaft in a first direction about its longitudinal axis, a second motor 8 for applying a torque to the shaft in a direction opposite to that of the first motor, and means 5 differentially controlling, the supply of power to the two motors, whereby the shaft is rotated in one or other direction by one of the motors and the rotation is resisted by the other motor. The differential means consists of a valve having a port 3 connected to an hydraulic pump 1 and ports 6, 7 connected to the hydraulic motors 8, 9. Further ports 13, 14 are connected to a return line 15 which leads to a reservoir 2 and is connected by a restricted outlet 11 to a line 10 interconnecting the motors. The valve has a spool 4 having lands which may be slightly less in width than the ports 6, 7 so that when the spool is in its neutral position, a small flow of fluid by-passes the motors and passes through the ports 13, 14 to the return line. Movement of the spool to the right supplies fluid to the motor 9 to drive the shaft in a forward direction and reduces the flow of fluid by-passing the motor 8 so that the drive from the motor 9 is resisted by the motor 8 and play in the gear trains between the motors and shaft is taken up. Further movement of the spool causes the motor 9 to drive the motor 8 as a pump to pass fluid from the pipe 10 connected to the exhaust of the motor 9 through the ports 6, 13 to the reservoir. Movement of the spool in the opposite direction causes the motor 8 to drive the shaft in the opposite direction against the resistance of the motor 9. Excess pressure in the system is relieved by a valve 12.
Patent GB-1038234-A (GB)
Title: Keypunch input with repeat readout
IPC: F15C1/00
Filed: 1964-06-02
Abstract: 1,038,234. Pure fluid amplifiers. SPERRY RAND CORPORATION. June 2, 1964 [June 5, 1963], No. 22749/64. Heading G3H. [Also in Divisions B4 and G4] A fluid operated punching machine in which record cards 83, Fig. 1, are moved successively into a punching station and data punched thereon comprises a keyboard input 9 for producing a fluid signal representing a bit of data to be punched, a bi-stable fluid amplifier 3 responsive to the fluid signal for storing the data bit and continuously producing a fluid output signal, a further fluid amplifier 5 having a power stream input channel 61, an output channel 63 connected to a fluid actuated punch 81 and a control signal input channel 59 for receiving the output signal from the amplifier 3 and deflecting the power stream of the amplifier 5 to its output channel 63, a readout control means 11 permitting the intermittent application of a power stream to the channel 61 to actuate the punch so that the data bit may be recorded a plurality of times in response to a simple fluid signal from the keyboard input. The amplifier 3 comprises a power stream input channel 13, a first output channel 15 for normally receiving an applied power stream and a second output channel 17,a first control signal input channel 19 responsive to the fluid signal from a key 39 for switching the power stream to the channel 17 to thereby store the data bit and a second control signal input channel 21 through which a fluid signal formed by a key 41 may be applied to switch the power stream back to the channel 15. The amplifier 5 has a second output channel 65 for receiving the power stream intermittently applied to its input channel 61 while the power stream of the amplifier 3 is flowing in its output channel 15. A circuit, Fig. 2, for enabling a value in binary coded decimal form to be punched repeatedly in response to a single actuation of a key representing a decimal value comprises a fluid source 1, a plurality of bi-stable fluid amplifier memory elements 3, a further plurality of fluid amplifiers 5, a readout control 11 and a translator 99 having a plurality of fluid amplifier OR gates 100 to 107.
Patent GB-154522-A (GB)
Title: Improvements in liquid fuel burners
IPC: F23D11/12
Filed: 1920-08-03
Abstract: 154,522. Walker, J. Aug. 3, 1920. Spray burners.-A liquid-fuel burner comprises a casing A divided into compartments A<3>, A<4> by a perforated plate 7, air being supplied by a pipe 1 to compartment A<3>. The air, relatively large in volume, issues through the perforations in the plate 7 and is directed across liquid-fuel jets 2', mixing with the liquid fuel in the chamber A<4> and issuing through an outlet A<1>. More than one outlet A<1> may be provided. Steam may also be used for atomizing the fuel in some cases and the nozzles 2 may be interchangeable to suit different kinds of liquid fuel.
Patent GB-223372-A (GB)
Title: Improved method of and apparatus for the vacuum sealing of jars and the like containers
IPC: B67B3/24
Filed: 1923-09-12
Abstract: 223,372. Ginzler, S., and Bennett, H. Sept. 12, 1923. Vacuum closures.- In a vacuum-sealed jar b, a, hole n in the flange of the coverplate f and covered by a packing-ring a is adapted to receive a pin by which the vacuum may be destroyed to facilitate the opening of the jar.
Patent GB-708021-A (GB)
Title: Improvements in or relating to high power electric pulse generators
IPC: H03K3/55
Filed: 1951-10-02
Abstract: 708,021. Pulse generating circuits. GENERAL ELECTRIC CO., Ltd., and BRISCOMB, D. W. Sept 18, 1952 [Oct. 2, 1951], No. 22979/51. Class 40 (6) A high voltage pulse generator in which pulse forming delay line networks are charged via an inductor from a high voltage D.C. source and subsequently discharged into a load through a triggered discharge device, comprises switching circuits which enable the pulse forming networks to be switched into or out of circuit to vary the pulse duration whilst ensuring that the high voltage is connected to the discharge device only when a pulse forming network is also connected in circuit. The Figure shows a circuit for producing high voltage pulses across a load 4 which may be a magnetron oscillator of a radar transmitter. With the switches 13, 14, 15 in the position shown delay line 1 is charged from the high voltage D.C. supply 8 via choke 11 and is periodically discharged through load 4 when thyratron 5 is fired by pulses applied from the trigger-pulse generator 7. Pulses of other durations may be generated by operation of switches 13, 14, 15 so that any combination of delay lines 1, 2 and 3 may be included in the charging circuit. Capacitor 16 reduces sparking of the switch contacts when these are changed-over. Specification 708,012, [Group XL(b)], is referred to.