baber/WOPTO huggingface dataset:
Patent GB-879507-A (GB)
Title: Improvements in or relating to circuit arrangements for frequency modulation
IPC: H03C3/00
Filed: 1960-06-15
Abstract: 879,507. Frequency modulation. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 15, 1960 [June 18, 1959], No. 21030/60. Class 40(5) Cascade connected pairs of tubes 1, 2 and 3, 4 have a common output connected back through different phase shifting lengths of a delay line 7 to the control electrodes of the lower tubes to generate oscillations of frequency intermediate between those generated if each cascade circuit was alone operative, and modulation is applied in push-pull to the upper control grids 1, 3, the latter being earthed at the generated frequency, to frequency modulate the generated oscillation. Preferably the delay line is tapped for the feedback at 60 degrees and 120 degrees phase shift at the mean frequency so that the impedance presented to the common output of the cascade circuits is complex and the frequency modulation may be linearized using the phase/frequency characteristic of the circuits. Alternatively phase shifts of +90 degrees, -90 degrees or 120 degrees, 240 degrees may be used. Resistors 14-21 apply equal operating potential to the upper grids 1, 3. In a modification the tubes 1, 3 and 2, 4 are frame grid double tubes in a common bulb and stabilizing D.C. negative feedback is applied from the anodes of the upper tubes to the control grids of the lower tubes. Transistors may replace the tubes. Specification 512,028 is referred to.
Patent GB-320429-A (GB)
Title: Improvements in or connected with tipping apparatus for wagons and the like
IPC: B65G67/00
Filed: 1928-07-20
Abstract: 320,429.. Biles, A. W. July 20, 1928. Winch-actuated hoists with guided carriers.-A carrier A with pivoted rail platform B and with side support C for a wagon is raised in guides F by a cable H' and winding-drum G until the top of the wagon engages a support E on a holder D pivoted at 2. The holder D is supported by a cable H anchored to it at 4 and tensioned by a weight K hanging in a bight, the other end of the cable H being wound on the drum G so as to be payed out when the carrier A is raised. Further winding on the cable H<1> tips the wagon. As shown, the carrier A is supported by sheaves 9 in a bight of the cable H' anchored at 10 and the parts G, H, H<1>, K &c. are duplicated. Specification 284,045, [Class 78 (iv), Loading &c.], is referred to.
Patent GB-616562-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H51/32
Filed: 1946-07-15
Abstract: 616,562. Electric selective signalling systems. GENERAL ELECTRIC CO., Ltd., and SMART, N. C. July 15, 1946, No. 21079. [Class 40 (i)] In a code-responsive switching mechanism of the type described in Specification 546,889, in which operation of a lever by a relay sets a motor in operation, this motor rotating a plurality of cams to close a work contact, and in which the cycle is completed only if the received signals are of correct duration and frequency, the relay operating the lever is of a vibratory tuned reed pattern to render the circuit more selective to the operating frequency, and the lever, when moved off normal, is held there by a magnet until restored by a further motor-driven cam. Referring to the Figure, reception of the correct frequency at coil 2 causes vibration of reed 6 to rotate lever 4 about a pivot 5. An armature 35 at its upper end is brought into proximity with a magnet where it is held, causing pivotal movement of a further lever 36 and closing the circuit of motor 12 through contacts 13. The motor commences to. rotate cams through step-down gearing 11 and a pin wheel through further step-down gearing 25, this pin wheel restoring the levers to their original positions. If the duration and spacing of the code signal is not correct one of levers 20 or 21 engages with one of the projections on code cams 26 and 27 causing reversal of the motor to its original position as described in Specification 546,889. The work contact is shown at 32, and contacts 39 hold the motor circuit closed when contacts 13 part if the motor is away from its zero position.
Patent GB-136643-A (GB)
Title: Improvements in Autographic Registers.
Inventor: THOMPSON WILLIAM PHILLIPS
IPC: B41L5/06
Filed: 1918-12-19
Abstract: 136,643. Thompson, W. P., (Business Systems, Ltd.). Dec. 19, 1918. Memorandum appliances; carbon papers, arrangements of. - An autographic register, ir which a number of superposed webs of paper containing printed forms, such as sales slips, are fed over a writing-table, is provided with alining-pins for periodic engagement with perforations in the webs to register the superposed forms at the completion of each recording and feeding operation. When the alining-pins are lifted out of the register openings, they are moved out of line with them by spring action. The superposed webs and the carbon paper are supported between a writing-table 5 and a frame 60 both mounted on pivots 6, the webs being fed under the alining-pins 110 and between the feeding-rolls 80, 90. The lower feed-roller 90 is mounted on spring-controlled pivoted plates 91 operated by arms 100, 98 mounted on a spindle 97, to lower the roller 90 out of action. As long as the alining pins rest on the webs, they act through cranks and cams on a spindle 115 to keep the arms 100, 98 out of action; but, when the alining-pins drop into the register openings in the webs, the spindle 115 is allowed to turn under the action of springs and to turn a cam 165. This action allows a frame 170 pivoted to a spring- pressed detent arm 102 to descend and bring the detent into gear with teeth 83 on the feed-roller 80. This operates the arm 100 to release the feedroller 90 and lock the feed-mechanism in its inoperative position. The webs may then be drawn back into register by guide-rolls 20 sliding in bearing-slots. The alining-pins are raised and the feed-rolls brought into action again by depressing a plate 143 which is geared to the spindle 115. Specification 136,642 is referred to.
Patent GB-573859-A (GB)
Title: Improvements relating to cylinder gauges
IPC: G01B5/08
Filed: 1943-12-17
Abstract: 573,859. Linear-dimension gauges. OLDAK, F. Dec. 17, 1943, No. 21220. [Class 106 (ii)] A gauge for measuring internal diameters cornprises a head 1 carrying a fixed contact 3, a slidable gauging contact 5 and two slidable locating contacts 7, 8. The gauging and locating contacts are arranged so that they can be withdrawn into the head by operating a hand lever 16a, Fig. 1, thus enabling the gauge to be readily inserted into a bore. The hand lever 16a pivoted at 17 has a forked end 16b engaging slots in the locating contacts 7, 8 to draw these into the head 1 against the springs 10, 11, the contacts 7, 8 being connected by a bridge 9 bearing against a shoulder on the gauging contact 5 to move this latter also against its spring 6. The gauging contact 5 has a wedge-shaped projection 12, Fig. 2, operating through balls 14 a similar projection 13 secured to a rod 15 passing through the handle 2 to a dial indicator, not shown. The fixed contact 3 may be replaced by a longer member to adapt the gauge for larger bores.
Patent GB-986548-A (GB)
Title: Radiation-sensitive photographic materials
Inventor: DUFFIN GEORGE FRANK
IPC: C09B23/10
Filed: 1962-06-01
Abstract: 986,548. Photosensitive materials. ILFORD Ltd. May 24,1963 [June 1, 1962],No. 21317/62. Heading G2C. A photosensitive material comprises a support carrying a layer of a compound in the solid phase and having the formula: - wherein Y is sulphur or silenium, R is alkyl hydroxyalkyl, carbamoyl-alkyl or aralkyl, Z and Z<SP>2</SP> are hydrogen atoms or together complete a fused-on benzine ring, Z<SP>1</SP> is a hydrogen or halogen atom and X is an anion. A solution of the compound may be applied directly to a paper base and dried, or the compound may be applied in a layer with a binder such as rubber polyvinyl chloride/ polyvinyl acetate copolymer or partially hydrolysed polyvinyl acetate. The coating composition may contain a base such as piperazine or an alkali metal hydroxide, or an aqueous solution of such a base may be applied over the photosensitive layer. The materials give print-out images on exposure to ultra-violet radiation. Specification 843,363 is referred to.
Patent GB-794587-A (GB)
Title: Three-phase four-wire induction meter
IPC: G01R11/40
Filed: 1955-07-22
Abstract: 794,587. Meter brakes. LANDIS- & GYR, AKT.-GES. July 22, 1955 [July 27, 1954], No. 21318/55. Class 35. [Also in Group XXXVI] A three-phase induction watt-hour meter comprising three driving systems I, II, III disposed uniformly about the axis 11 of a rotor disc 12 upon which they act is also provided with two brake-magnet systems 22, 23 arranged on the bisectors of the angles between two adjacent pairs of the driving systems. The disc 12 preferably comprises a plurality of thin, radially slotted aluminium sheets stuck together and insulated from one another to reduce coupling between the eddy-currents induced in the disc. The metering mechanism 24 may be disposed on the remaining bisector.
Patent GB-1133053-A (GB)
Title: Double bushing arrangements suitable for use in high voltage switchgear
Inventor: TAYLOR SIDNEY
IPC: H02B11/167
Filed: 1964-12-31
Abstract: 1,133,053. Isolating switches. SOUTH WALES SWITCHGEAR Ltd. 4 March, 1966 [31 Dec., 1964], No. 21548/68. Divided out of 1,133,051. Heading H1N. Two pivoted bushing isolator blades 2, 5, arranged so that one contact of each may be brought into contact with one another or with a single fixed contact 1, are pivoted about non- parallel axes so that they do not interfere with one another. In the open position the isolator blades 2, 5 lie parallel to and overlapping one another (Fig. 2, not shown) for compactness. The isolator blades are employed in the switchgear arrangement of the main Specification.
Patent GB-653134-A (GB)
Title: Improvements in electromagnetic step by step switch magnets
IPC: H01H63/20
Filed: 1948-08-16
Abstract: 653,134. Electromagnets. GENERAL ELECTRIC CO., Ltd., and ROSE, W. R. Aug. 16, 1948, No. 21578. [Class 35] [Also in Group XXXIX] A rotary drive magnet for a step-by-step telephone switch (see Group XXXIX), comprises a framework 2 to which is secured a core and coil 1 and a plate 9 provided with lugs 7, 8. A pivot pin (not shown), is freely supported by the lugs and is secured to an armature 5 by screws 4. The armature is normally urged against an adjustable stop 21 threaded into a bent-up portion 20 of the framework, by a flat spring 23 which may be adjusted in tension by a screw 24.
Patent GB-519368-A (GB)
Title: Improved process for the production of composite wood material
IPC: B27D1/04
Filed: 1938-07-20
Abstract: 519,368. Laminated wood blocks. DASHWOOD, A. A. July 20, 1938, Nos. 21596/38 and 6412/39. [Class 145 (ii)] A composite wood block consists of rotary cut veneers treated with a bonding material and' consolidated under pressure applied edgewise of the veneers. The layers may first be compressed in the usual manner and then held against separation when the edgewise pressure is applied. Specification 484,081 is referred to.
Patent GB-1483150-A (GB)
Title: Method of treating human and animal waste products and products so obtained
IPC: C02F11/12
Filed: 1975-05-20
Abstract: 1483150 Treating human and animal waste products AN FORAS TALUNTAIS 20 May 1975 [29 May 1974] 21612/75 Headings C1B and C1C A method of treating human and animal waste products in the form of a slurry to produce a semi-solid material comprises adding to the slurry and admixing therewith an aldehyde together with a nitrogenous substance having free amine or amide groupings and capable of complexing with the aldehyde, and then adjusting the pH of the mixture until it is less than 4 to promote complex formation, and subsequently neutralizing the material. The waste products may be animal manure, human excreta, dairy effluent, blood or intestinal contents. The product of the process may be used as a fertilizer, alone or admixed with peat moss, or with added trace elements (e.g. P, S, K and trace elements). The aldehyde used may be formaldehyde, acetaldehyde or glutaraldehyde, and the nitrogenous substance may be biuret, urea, casein, gelatine, animal hides, hoop, crushed bone, blood, animal offals, feathers or wool.
Patent GB-477267-A (GB)
Title: Improvements in and relating to electric arc lamps
IPC: H05B31/00
Filed: 1937-08-06
Abstract: 477,267. Arc lamps. LUSTIG, K. Aug. 6, 1937, No. 21739. [Class 39 (i)] In an electric arc lamp the gases entering above the arc are withdrawn by a pipe 12 which is arranged in the shadow of the carbonholder 6, whereby no additional shadows are formed. In the form shown, the arc is arranged within a casing containing a mirror 2 and a front glass 3. Air from opening 9 is driven by an impeller 23 through the hollow positive electrode holder 6 and pipe 10 into the casing. The arc is surrounded by a chamber, open at the sides but closed by the bottom and top plates 17, 18 respectively, and containing ribs 16 which disperse unwanted light. The pipe 10 opens into the top of the chamber, from which the fumes are carried away by the pipe 12. Cooling means, such as ribs 14, are provided in the middle section of the pipe, upon which deposits are formed. The impeller 23 is driven by the carbon-controlling motor 8. In modifications a suction fan may be placed in the end of pipe 12, in addition to or instead of the impeller 23. The top plate 18 may be perforated, and the pipe 10 dispensed with.
Patent GB-316182-A (GB)
Title: Improvements in the dyeing of fibre laps
IPC: D06B5/16
Filed: 1929-07-16
Abstract: 316,182. Obermaier, C., (trading as Obermaier & Co.). July 24, 1928, [Convention date]. Circulating fluids through materials on perforated tubes.-In the dyeing or wet treatment of fibre laps, the bobbins of combed fibre a are placed on a perforated downwardly-tapering tube e, and extension tube h, the tube e being held in a. base f by a pin g, and are compressed, outside the dyeing apparatus, with the aid of a flanged cover i, to an extent equal to the normal shrinkage during treatment. The tube h is then removed and the cover i fixed by a pin which also passes through the tube e.
Patent GB-615585-A (GB)
Title: Distribution system for high frequency electrical energy
IPC: H04N7/10
Filed: 1946-07-22
Abstract: 615,585. Distributing music &c. FARNSWORTH TELEVISION & RADIO CORPORATION. July 22, 1946, No. 21820. Convention date, Oct. 5, 1945. [Class 40 (iv)] [Also in Group XL (b)] A distribution system for high-frequency electrical energy comprises an input terminal, n impedance inverters connected thereto, and n transmission lines connected to each inverter, each of the transmission lines being terminated in an impedance substantially equal to the characteristic impedance of the impedance inverters. The example shows a television receiving system in which energy passes from an aerial 1 to impedance inverters 4, 5, 6 which consist of quarter wave lines and each are connected to groups of transmission lines 7, 8 and 10 respectively. These lines are terminated in television sets 12, any unwanted line being provided with a suitable impedance 15.
Patent GB-410083-A (GB)
Title: Improvements relating to synchronising clutches for power transmission
IPC: F16D23/10
Filed: 1932-08-05
Abstract: 410,083. Free - wheel clutches. LEGGE, N., Hall Gate, Hexham, Northumberland. Aug. 5, 1932, Nos. 21963 and 27480. Addition to 354,711. [Class 80 (ii).] In an overrunning claw clutch according to the parent Specification, adapted to be engaged automatically upon synchronism by means of an auxiliary positive unidirectional drive which is operated by the driving or driven member A<1>, carrying one set of claws A<2>, and which controls an intermediate member B<1> provided with the other set of claws B<2> and helically movable on the driven or driving member C<1>, axial displacement occurs between the pawls &c. and the co-operating teeth or jaws of the auxiliary drive during engagement of the claw clutch, such axial displacement rendering the pawls inoperative. As shown, spring-loaded radiallyslidable pawls A<3> carried by the member A<1> co-operate with the claws B<2>, and, upon engagement of the claws A<2>, B<2>, the pawls enter a recess in the member B<1> behind the claws B2 ; alternatively the pawls may be depressed by means of an inclined surface in the member B<1>. The latter has inclined slots B<6> engaging keys C' on the member C<1> to produce the helical movement and may be maintained normally in its disengaged position by a spring or by spring detents. A washer C<4> co-operates with a recess B<5> to give a dashpot action during engagement. Manual engagement of the clutch may be effected by acting on a flange B<4> of the member B<1>. In the application to the tail clutch of a motor vehicle, the flange is caused to move to the left when reverse gear is engaged. A slipper ring D<1> has jaws D<2> slidable axially between projections B<3> on the member B<1> and co-operating with projections C<3> on the member C<1>. The ring D<1> may, only after engagement of the clutch, be slid automatically, such as by a spring, or voluntarily to the left so as to give bi-directional drive. The jaws D<2> may be extended as shown to engage the claws A<2>, and the ring may be retracted by operation of a knob or lever on the gear lever. The pawls A<3> may be arranged to slide axially instead of radially. According to the first Provisional Specification, the pawl mechanism may be enclosed by other parts of the mechanism or by suitable covers so as to work in an oil bath, and the ring D<1> may be mounted on the member A<1> and have pins engageable with holes in a flange on the member C<1>. According to the second Provisional Specification, the ring D<1> may have pins passing through holes in the member B<1> and engageable with holes in a flange on the member C<1>, and the washer C<4> and members B<1>, C<1> may be magnetized so as to reduce the possibility of bounce upon engagement.
Patent GB-1205739-A (GB)
Title: Improved crane
Inventor: DINES BARRY ERNEST
IPC: B66C23/36
Filed: 1969-04-30
Abstract: 1,205,739. Breakdown cranes. B. E. DINES. 30 April, 1969, No. 22100/69. Heading B8H. A breakdown crane adapted to be mounted in the interior of, or towed behind, a towing vehicle comprises a telescopic boom 4, 5 pivoted at 19 to uprights 3 on a base frame 1 which telescopically receives a draw-bar 12 secured by a pin 13 to the vehicle. The boom is raised and lowered by means of a screw or hydraulic jack 20 detachably secured to a plate 9 which may be adjustably mounted on the base frame 1. The boom may be supported in selected positions by a pawl 7 engaging notches 8 in uprights 2 secured to the base frame or by a pin passing through selected apertures in the uprights 2, Fig. 3 (not shown). Removable wheels 15 are provided on the base frame 1.
Patent GB-204830-A (GB)
Title: Improvements in double beat equilibrium valves of piston type
IPC: F01B25/00
Filed: 1922-08-15
Abstract: 204,830. Owen, A. E. Aug. 15, 1922. Closure members.-A valve of the kind described in Specification 171,510 is modified so that one valve member is lifted by engagement with the other valve member. The valve member 2 is formed with a, part 16 which slides withir. the valve member 3, and the two valves co-operate with seatings 4, 5. The member 3 is mounted on the spindle 7 between a shoulder' 8 and a nut 9, and the member 2 is free to slide within the member 3 to an extent determined by the distance between the lower edge of the ribs 18 and part 15 or the ridge 22 and lower edge of the member 2. The diameter of the member 3 is less than that of the member 2, so that the seat 4 may be formed on the valve casing 1, without the necessity for a detachable seating to allow withdrawal of the valves. The space within both valves is open to steam pressure, so that the valve 3 is balanced and the valve 2 nearly so. The valve 3 opens first, and the valve 2 then becomes balanced before it is opened by the continued upward movement of the spindle. Modifications are described in which a detachable side plate is provided on the part 1 for withdrawal of the valve 3, and ir. which the device is adapted as a stop valve in a complete casing.
Patent GB-1435197-A (GB)
Title: Electronic counter assembly with variable counting ranges
IPC: D04B15/66
Filed: 1973-05-10
Abstract: 1435197 Predetermined counting H STOLL G STOLL E STOLL E STOLL J STOLL A STOLL R E STOLL and M STOLL 10 May 1973 [18 May 1972] 22313/73 Heading G4D A counting apparatus is arranged to count through a sequence of n independently adjustable series of pulses issuing an output pulse at the end of each series. A first decade counter Z 1  counts continuously from a clock input A applying pulses sequentially to the contacts 0-9 of each of n separate selector switches W. A set of n gates G0-G9 are triggered one by one by a second counter Z 2  to connect the output of respective switches to an OR-gate G10. When the count in Z 1  reaches the value set on the switch W selected by Z 2  the OR-gate G10 delivers an output pulse at C which also resets Z 1  by way of gate G12 and steps Z 2  to select the next switch W by way of gate G11. If any switch W is set to its eleventh position, U, then counter Z 2  will be stepped on by a pulse on the other input of G11 but no output pulse will appear at C. Thus a smaller number of series, each greater than 10 can be selected. The apparatus is useful to control a knitting machine; each A pulse represents a stitch while each pulse at C instructs the machine to change pattern.
Patent GB-1527048-A (GB)
Title: Method and device for determining the pore water pressure in a soil
IPC: E21B47/06
Filed: 1976-05-28
Abstract: 1527048 Measuring pore water pressure in soil B-A TORSTENSSON 28 May 1976 [30 May 1975] 22323/76 Heading G1S A water filled tube 1, Fig. 1, provided with a pore pressure nylon bodied probe 2 at its end, is driven into the ground and then connected to a measuring device 3, Fig. 3, which is lowered down the tube until a sleeve 9 fits on to a nipple 8, Fig. 2, of the probe. The measuring device 3 houses a pressure transducer 10 by means of which a pore pressure reading is taken on a meter 4 when the ground disturbance due to penetration has ceased and water passes through a sintered ceramic filter 6. After this measurement the device 3 is disconnected and a reading taken of the water pressure in the length of the tube. From these values, and known parameters including a calibration factor which may be used in a simple stated equation, the corrected pore water pressure may be calculated.
Patent GB-276680-A (GB)
Title: Improvements in acoustic sounding apparatus
IPC: G01S1/72
Filed: 1927-08-25
Abstract: 276,680. Behm, A. Aug. 28, 1926, [Convention date]. Mounting and supporting indicating-apparatus. -Comprises a mounting for an acoustic sounding apparatus for measuring distances in water or air by the echo method. A ball lens 18 on a spring 19 is arranged in front of a lamp 21 and the light passes through a lens 14 and is reflected in the form of a spot of light 16 from the mirror 12 on to a screen 17. The screen is made of a material powerfully dispersive of light, such as tracing paper, parchment, milky glass &c.. By unscrewing a cap in the front of the casing, the lamp 21 may be removed. The instrument is mounted on the board 30 by the supports 29 of the axle 6<1> of the cam and spring 25 is suspended from any of a series of holes in a bow-shaped member 31 fixed to the board. The instrument as a whole may tilt about the axis 6' for the observer to survey the whole range of the curved scale. A screen 33 with foldable supports 33<1> is fitted.. On a signal being emitted, a a shot fired, for instance, a spot of light travels rapidly up the scale. When the echo is received in another microphone the ball lens 18 receives a sudden movement which causes the spot of light to trace a transverse path 16<11> to the original path 16<1>.