baber/WOPTO huggingface dataset:
Patent GB-1124916-A (GB)
Title: Electronic control arrangement for photographic orcinematographic cameras
IPC: G03B9/08
Filed: 1966-03-14
Abstract: 1,124,916. Semi-conductor circuits. COMPUR-WERK G.m.b.H. 14 March, 1966 [17 March, 1965 (2); 18 June, 1965; 19 Nov., 1965], No. 11004/66. Heading H3T. [Also in Divisions G1 and G2] In a battery-powered electronic control system, the battery is conserved by providing an electronic switch which automatically connects the battery to the control system when an adjustment is called for and automatically disconnects the battery when the adjustment is completed. Fig. 8.-In a servo-control mechanism [Division G1] incorporating a battery-powered selfbalancing resistance bridge, the slider of a setting potentiometer 54 is connected to a manual selector control which has a number of stable positions and movements of the selector control from one setting to another through an unstable intermediate position causes a momentary closing of contacts 88, 90 to trigger a switch comprising two transistors 94, 96 thereby connecting the battery 66 to the bridge circuit. Transistors 94, 96 remain conducting until the bridge is rebalanced by a motor 38 which is energized by the out-of-balance voltage appearing across the sliders of the setting potentiometer 54 and a rebalancing potentiometer 56. A light 108 is energized while the battery is connected to the bridge. When the bridge is balanced, transistors 94, 96 become blocked thereby disconnecting the battery and extinguishing light 108. A Zener diode 86 stabilizes the battery voltage. Fig. 17.-In a time delay circuit, for controlling the opening and closing of the shutter of a camera [Division G2], the shutter release button (356) is connected to switches S1, S3. When the button (356) is actuated, switches S1 S3 are closed momentarily to trigger an electronic switch comprising transistors T6, T7 thereby connecting the battery B to the time delay circuit and energizing an electromagnet MF. After a time delay dependent on which tap of the resistance chain Rx, Rm, Rv is connected via switch blade 352a to a capacitor C1, Schmitt trigger T2, T3 triggers transistor T1 to discharge capacitor C3 through electromagnet MA thereby opening the shutter and moving switch S4 from position I to position II. After another time delay dependent on Rz and C2, Schmitt trigger T4, T5 de-energizes electromagnet MF thereby closing the shutter and returning switch S4 to position I. Transistors T6, T7 are now blocked and the battery is therefore not connected to the time delay circuit. Switch S2 is closed by the action of opening the shutter and allows passage of current to a flash-bulb L.
Patent GB-1243429-A (GB)
Title: Seat suspension assembly
IPC: B60N2/52
Filed: 1969-03-03
Abstract: 1,243,429. Damped fluid Springs. INTERNATIONAL HARVESTER CO. 3 March, 1969 [4 March, 1968], No. 11090/69. Heading F2S. [Also in Division A4] For supporting a seat 15, Fig. 1 (not shown), a self-damping spring mounting consists of a piston-and-cylinder fluid-displacer unit 20, the piston 26 of which is tubular and is connected by way of a conduit containing an adjustable flow restrictor 43 to a resilient biasing means acting on the fluid in the unit 20. The biasing means shown is a hydro-pneumatic accumulator in which liquid is separated by a piston 57 from gas 58, the gas chamber either being closed as shown or having a filling valve in it. To raise or lower the supported seat a pump and reservoir system 68, 70 can be suitably connected by means of a valve 66 to an inlet 32 in the support housing.
Patent GB-1527350-A (GB)
Title: Slider for sliding clasp fasteners
IPC: A44B19/30
Filed: 1975-12-09
Abstract: 1527350 Sliding clasp fasteners YOSHIDA KOGYO KK 9 Dec 1975 [21 Dec 1974] 11217/78 Divided out of 1526967 Heading E2S A non-releasable locking slider 10b has a resilient locking pawl 16b in a wing 11 which extends partly into the guide channel where inclined portion 17a engages the fastener elements and permits one-way motion of the slider, there being no means for disengaging the pawl to permitting opening of the fastener. A pull-tab may be included, but does not act upon the pawl.
Patent GB-919130-A (GB)
Title: Improvements in or relating to hydraulic servo-motors with oscillating vanes
IPC: F15B15/12
Filed: 1961-03-28
Abstract: 919,130. Oscillating-vane pumps. KONSTRUKTIONER & EXPERIMENT A.G. March 28, 1961 [April 4, 1960], No. 11256/61. Class 110 (2). In an oscillating-vane pump comprising a cylindrical housing 1, Figs. 1 and 2, closed at its ends with end covers 3 supporting a concentrically mounted rotor 5, the abutments 6 secured to the housing and the vanes 8 secured to the rotor are covered on their side faces with a resilient material such as rubber, leather or a synthetic plastic material having projecting lips on all four sides. The inner faces of the covers 3 are recessed and fitted with resilient annular pads 12, e.g. of nylon, having an inner projecting ring portion sealingly engaging conical portions 10 of the rotor 5.
Patent GB-632354-A (GB)
Title: Improvements in the recording of rapidly-varying electrical voltages
IPC: G01R13/04
Filed: 1941-09-06
Abstract: 632,354. Recording-apparatus. OPPEGAARD, K. F. Sept. 6, 1941, No. 11402. [Class 106 (iv)] [Also in Group XXXVI] A record of a voltage is made on a moving strip B by one of a plurality of pins moving transversely to the strip (e.g. carried by the wheel R) which receives an impulse when the sum or difference of the voltage to be recorded and an auxiliary periodically-varying voltage reaches a predetermined value. The voltage to be measured is applied at Ex= and together with the potential from a potentiometer P is fed to the input of a thyratron T; the contact S of the potentiometer moves with the wheel R, so that when the sum or difference of the voltage at Ex= and S reaches a predetermined value, the thyratron T conducts to allow condenser C1 to discharge to give an impulse to the pin to record electrolytically or by a spark to the strip B. The thyratron is extinguished by a commutator breaking its anode circuit or by the voltage drop generated across resistance W2. In a modification, the potentiometer is replaced by a sawtooth oscillator synchronized with the wheel R, Fig. 2, not shown. The voltage Ex= may be replaced by a rectified alternating voltage Ex-. The wheel R may be geared with a commutator to record successively voltages from different sources.
Patent GB-952820-A (GB)
Title: Improvements in or relating to antibiotic production
Inventor: GROWICH JOHN ANDREW
IPC: C12P29/00
Filed: 1962-03-26
Abstract: Tetracycline is produced by cultivating a strain of Streptomyces aureofaciens which produces tetracycline to the substantial exclusion of chlortetracycline under submerged aerobic conditions in an aqueous nutrient medium containing assimilable sources of carbohydrate, nitrogen and inorganic salts until substantial quantities of tetracycline are produced, the tetracycline-producing strain being also characterized by its ability to impart to the whole harvest mash a colour characterized by a reflectance curve, when plotted linearly, wherein the vertical distance between the reflectance curve and a straight line drawn through the reflectance curve intercepts at 400 mm  and 550 mm  is greater at 420 mm  than at 430 mm . Specification 690,381 is referred to.
Patent GB-707699-A (GB)
Title: Improvements in the heads of equipment for magnetic recording and reproduction
IPC: G11B5/29
Filed: 1952-05-07
Abstract: 707,699. Magnetic recording and reproducing apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 7, 1952 [May 10, 1951], No. 11531/52. Class 40 (2). In a magnetic recording/reproducing head having at least one magnetic circuit incorporating two rigid core elements pressed together and forming two parallel magnetic gaps. The planes of said core elements defining the main direction of the flux are at an angle to each other deviating from 180 degrees. In the embodiment' described with reference to Figs. 1 and 2, the core elements 2, 3 are gripped in non-magnetic holders 20, 21, respectively, and pressed together against spacing plates 7, 8 by a U-shaped spring 16 in conjunction with a resilient clamping piece 17, and held against 'supporting surfaces on a supporting body 24 to which the spring 16 is secured by screws 25, 26. The remaining Figures illustrate embodiments employing two magnetic circuits, such. as for stereophonic recording and reproduction. In one embodiment, Fig. 5, diametrically opposite core elements 35, 38, and coils 57, 58 thereon, respectively, are offset from the direction of travel of the recording medium. Other arrangements of the core elements may be as shown in Fig. 6a, b, c and d. In yet another embodiment, Figs. 7 and 10, the core member's are offset both from the direction of travel of the recording medium and from the perpendicular of the plane of the medium, the coils 57, 58 surrounding the parts of the core elements opposite to the recording gaps.
Patent GB-1329679-A (GB)
Title: Mounting arrangement for magnetic tape head
IPC: G11B5/48
Filed: 1972-03-13
Abstract: 1329679 Head mounting assembly MOTOROLA Inc 13 March 1972 [1 April 1971] 11549/72 Heading G5R A head mounting assembly 10 for e.g. a tape cartridge player permits azimuthal and altitude adjustment of the head 12 and comprises a collar 14 in which the head 12 is secured by a set screw 30, and a block 48 to which the collar 14 is secured, by a retaining spring 80, for rotation relative thereto. A cylindrical extension 34 on the collar 14 fits in a circular aperture 46 in the block 48 and includes tabs 42, 43 under which the spring 80 is located. The extension 34 also includes a tab 35 which is received in an opening 72 of the block 48 and is acted on by a set screw 74 for azimuthal rotation. The spring 80 biases the tab 35 against the set screw 74 by means of an end portion 88 which abuts a shoulder (78), Fig. 4 (not shown), of the block 48. The assembly 10 is mounted for altitude adjustment on two pins (92, 94), Fig. 5 (not shown), the pin (92) extending through holes (63), 65 in arms (62), 64 of the block 48, the pin (94) extending between arms 23, 66 provided on the collar 14 and block 48 respectively. The extension 34 has a rectangular aperture 36 for access to electrical terminals 38 of the head 12.
Patent GB-1500073-A (GB)
Title: Band clamps
IPC: F16B2/08
Filed: 1975-03-20
Abstract: 1500073 Band clamp I T W Ltd 18 March 1976 [20 March 1975] 11600/75 Heading E2B A band clamp comprises a band 1 integrally attached to one end of a housing 2 which receives screw 3. The screw 3 is also attached to the housing 2 by the means of frangible bridge 7 for ease of manufacture and is formed with a slot 9 and a neck 19 50 that when the free end 6 of band 1 is inserted in slot 4 in housing 2 and the screw 3 rotated to engage grooves or slots 8 shear failure occurs at X-X when a predetermined tightening torque is reached. After removal of screw head 10 rotation of screw 3 using slot 9 is possible for untightening. Other types of shearable screw head may be used e.g. of the butterfly head type. The screw may also be used to form the complementary grooves in the strap while the strap is drawn through the housing.
Patent GB-768327-A (GB)
Title: Sewing machine needle carrier
IPC: D05B55/02
Filed: 1955-04-25
Abstract: 768,327. Sewing machine needle holders. SINGER MANUFACTURING CO. April 25, 1955 [May 5, 1954], No. -11809/55. Class 112. In a holder for the curved needles 19, 20, of an overedge sewing machine, one needle may be adjusted lengthwise of itself and relative to the other needle to facilitate the formation of stitches. The oscillatory needle bar 10 is formed with a plate 12 which carries a bolt 13. The latter is formed with a pair of radial holes 17, 18, and supports a washer 14 which is formed on its respective opposite faces with a pair of radial grooves 15, 16. Needle 19 passes through groove 15 and hole 17, and needle 20 passes through groove 16 and hole 18, the needles being clamped in position by a nut 21 on bolt 13. A bar 26 carried rotatably in plate 12 has a cylindrical surface 28 and an eccentric surface 29 against which the blunt ends of needles 19 and 20 are respectively adapted to abut, needle 20 thereby being adjustable longitudinally. Bar 26 is locked in adjusted position, by a nut 31. In a modification the free end of bar 26 lies in a bearing provided in an extension of washer 14. In a further modification both abutment surfaces on the bar are cylindrical, one surface being of greater diameter than the other, and interchangeable bars being provided for effecting needle adjustment.
Patent GB-647775-A (GB)
Title: Television broadcasting system
IPC: H04N7/08
Filed: 1947-05-02
Abstract: 647,775. Television transmission systems. STANDARD TELEPHONES & CABLES, Ltd. May 2, 1947, No. 11857. Convention date, May 10, 1946. [Class 40 (iii)] [Also, in Group XL (c)] In a television system in which a centra transmitter radiates picture signals on one frequency and sound and synchronizing signals on a different frequency the picture signals and accompanying sound signals are generated in a televising unit located at a distance from the central transmitter, the unit incorporating means for receiving the synchronizing signals transmitted by the central transmitter to effect synchronization and means for radiating the generated picture and sound signals to the central transmitter from which the received signals are re-radiated. Fig. 1 shows details of the central transmitter which comprises a mast structure 12 supporting radiating aerial elements 8 ... 11 and a receiving directional aerial 34 for receiving picture and accompanying sound signals generated by the remote televising unit. The received signals are separated in a circuit 22 which supplies the picture signals to a transmitter 5 (operating on frequency f1) for re-radiation from aerial element 9 and the sound signals to one channel of a multi-channel system 4 for re-radiation from aerial element 8 (on frequency f0) another channel of which conveys the synchronizing signals and further channels of which serve for the transmission of sound signals from sources 23 and 24 accompanying picture signals (generated by remotely located camera units 32, 33) which are transradiated by the central transmitter, includes means for separating the sound and synchronizing signals, supplying the latter to mitted by units 6 and 7 (on frequencies f2 and f3) from aerial elements 10 and 11 respectively. The distant televising unit (Fig. 2) comprises two receiving circuits connected to aerials 37a and 46 and a transmitter unit 37, including a television camera and microphone unit 58, connected to aerial 60 which radiates the generated signals to the central transmitter. The circuit connected to aerial 37a which is arranged to receive the multi-channel signals synchronize the operation of the camera unit 58 and the former to a sound reproducer 55 which together with a picture reproducer 41, supplied with video signals transmitted by the central transmitter and received over aerial 46, serves to monitor the sound and picture signals. Specifications 597,461 and 605,109 are referred to.
Patent GB-110733-A (GB)
Title: Improvements in or relating to Telegraph Systems.
IPC: H04L17/12
Filed: 1917-08-18
Abstract: 110.733. Automatic Telephone Manufacturing Co.. and Harrison. H. H. Aug. 18, 1917. Automatic t e l e - graphs; synchronous movements and synchronism indicators.- In an automatic telegraph system comprising a tape perforator, a transmitter, and a rotary distributor, the operation of the transmitter is stopped automatically and the line disconnected from the source of code impulses and connected to a source of spacing current when the length of tape between the perforator and the transmitter is reduced to a predetermined minimum. In a modification, the source of spacing current is disconnected intermittently from the line and a correction signal impulse for synchronizing purposes is sent to line. In the arrangement shown in Fig. 1, the tape S between a perforator P and a transmitter T passes over a roller r mounted on a spring-controlled bell-crank lever T C A, the arm c l of which normally engages; a contact t c. A normally balanced differential relay C R is provided with three armatures a<1>, a<2>, a<3> which normally occupy the positions shown on the drawing. The inner pair of contact brushes of the arm C B A of a rotary distributor is arranged to bridge a conducting ring R<2> connected to a battery B<1> and a contact T S' connected to the winding w<1> of the relay C R by the leads 1, 2 and to the winding w<2> of the relay C R by the lead 1 and the armature a<3> of the relay. The circuit of the winding w<2> is completed through a resistance R while the circuit of the winding w<1> is normally completed through the lead 3, contacts c l, t c, lead 4 and the winding T M of the transmitter. Under this condition, the relay C R is inoperative. When the length of tape between the perforator P and transmitter T is reduced to a pre-determined minimum, the lever T C A is operated to open the contacts c l, t c, whereby the relay C R is energized to close a holding circuit for itself from the battery B<3> through the armature a<2>, winding w<2>, and the resistance R. The operation of the armature a<1> disconnects the segment R<5>, associated with the code impulse segment R<6>, from the line M L and connects the line to a source B<2> of negative spacing current through the intermediate brushes of the arm C B A and the ring R<3>. When the tape S allows the contacts c l, t c to close, the energization of the winding w' again neutralizes the action of the winding w<2> and the circuits are returned to the condition shown in the drawing. In the modification shown in Fig. 2, the segment R' is divided into three parts, the middle portion being connected to a source of positive current for synchronizing purposes.
Patent GB-835878-A (GB)
Title: Improved baler
IPC: A01F15/10
Filed: 1956-04-19
Abstract: 835,878. Pick-up balers. MASSEY-FERGUSON Inc., [formerly MASSEY HARRIS FERGUSON Inc.]. April 19, 1956 [April 26, 1955], No. 11945/56. Class 94(1). A pick-up baler has means for delivering material gathered by the side pick-up mechanism to the compression chamber, comprising two spaced finger assemblies pivoted on cranks and linked to give an orbital and oscillatory motion to their feeding portions. Feed mechanism. Each assembly comprises three fingers 192b, 205b fixed on a tube 193, 206, through which runs a shaft 203, 216 mounted on a crank 200, 211. The assemblies are joined by a rod 196 and the inboard assembly is connected to a fixed portion of the machine by a yieldable link 226, the latter having spring means, Fig. 10, (not shown), to prevent damage should an assembly be obstructed. The crank shafts are rotated in unison by a chain drive from a shaft 2161. Pick - up mechanism. The pick-up tines 141, Figs. 3, 6, are formed of wire wound round and secured to rods 138 mounted on discs 137. The tines project between the usual stripper plates 148 and are arranged to alter their angle to the radial direction, as they recede below the plates, by cam means 166-172 acting on the rods 138. Twine or wire feeding mechanism. Each bale is bound in two positions and wires are fed from below and above the baling chamber and joined by tying or twisting means, which may be as described in Specification 834,804. The upper wires 237 pass beneath rollers 253<SP>1</SP> to the bale and the lower wires 238 pass over rollers 240 to needles 246, Fig. 14, for carirage through the baling chamber to the tying mechanism 33. The wire joints 245 are formed on top of the bale. The compressing plunger 110 has slots 121, 122 to facilitate tying. General. A shear coupling is provided in the plunger drive and a positive stop 248, Fig. 14, is arranged to obstruct the plunger if the needles 246 do not clear the baling chamber. Couplings 39, 42, Fig. 3, permit attachment to a tractor and a front towing coupling is also provided. The pick-up is raised and lowered by a hand lever 156.
Patent GB-1537096-A (GB)
Title: Blood processing apparatus
IPC: A61M1/36
Filed: 1976-03-25
Abstract: 1537096 Centrifuges for treating blood BAXTER TRAVENOL LABORATORIES Inc 25 March 1976 [27 March 1975 11 Feb 1976] 11953/76 Heading B2P A centrifugal blood processing apparatus is disclosed similar to that described in Figs. 8, 9 and 13 of Patent Application 1537095, but the main claim is directed to a presterilized flow apparatus for use with the centrifuge forming part of the processing apparatus and comprising at least one (blood receiving) container for removably mounting on the centrifuge rotor and an umbilical cable fixed at one end to the container and having inlet and outlet passages therein extending from inlet and outlet apertures at the other end of the cable to communicate with the interior of the container, the cable and the container having leak-proof interior surfaces, and the cable having a portion which is capable of being repeatedly partially twisted and untwisted without damage, in use, due to rotation of the container in the centrifuge whilst said other end of the cable is held stationary. Details are given (a) of the connector or junction block located between the said other end of the umbilical cable and the red blood cell and wash solution containers and (b) of a leader assembly for facilitating the installation of the blood receiving containers in the centrifuge rotor.
Patent GB-591317-A (GB)
Title: An improvement in or relating to scoops for the mining of coal
IPC: E21F13/06
Filed: 1945-05-12
Abstract: 591,317. Scoops for mining coal. THOMPSON, S. May 12, 1945, No. 11973. [Class 78(iv)] A scoop for transporting coal has door c pivoted at d so that it scrapes coal in the operative direction only, the door being connected by lever e to dragbar g which slides longitudinally as governed by the stop g<1> abutting against end stops on fixed frame a, b. The scoop is dragged over to a shoot by means of a haulage rope and thence the coal may fall on to a conveyer.
Patent GB-248961-A (GB)
Title: Improvements in chain-drives for overhead camshafts of internal combustion engines
IPC: F01L1/02
Filed: 1925-05-08
Abstract: 248,961. Lord, A. O. May 8, 1925. Valve gear.-A pair of overhead cam shafts a, b are driven from an intermediate shaft g by a single chain e passing over sprockets c, d, f and also over jockey pullsys l, m, one or both of which are adjustable for tightening the chain, for example by means of an eccentric mounting o. The intermediate shaft g may be driven from the crank shaft k by a chain i and sprocket h, j, the shaft g then having an eccentric mounting for tightening the chain i.
Patent GB-494589-A (GB)
Title: Improvements in or relating to motion picture apparatus employing a film magazine
IPC: G03B19/18
Filed: 1937-04-27
Abstract: 494,589. Kinematograph apparatus. KODAK, Ltd. April 27, 1937, No. 12051. Convention date, May 16, 1936. [Class 97 (i)] The film magazine is held in operative position by a spring-pressed plate retractable by the action of the lock of the cover of the magazine chamber. As shown the magazine 7 is pressed against the block 9 containing the objective and exposure aperture, by a plate 27 pivoted on a rod 28 and controlled by a spring 29 thereon. The plate 27 is engaged by studs 32, 47 on a sliding bar 30 serving to lock the cover 6 so that on moving the bar 30 to the left to lock the cover, the plate 27, under the action of the spring 29 and stud 47, presses the magazine into its exposure position. On releasing the latch the stud 32 moves the plate 27 to permit removal of the magazine. Specifications 494,590, 494,591, and 494,592 are referred to.