baber/WOPTO huggingface dataset:
Patent GB-1182234-A (GB)
Title: Electromagnetic Stepping Circuit.
Inventor: HUSBANDS KEITH RONALD FREDERIC
IPC: H04M19/02
Filed: 1968-03-08
Abstract: 1,182,234. Exchange apparatus. ERICSSON TELEPHONES Ltd. 4 Oct., 1968 [8 March, 1968], No. 11514/68. Heading H4K. A self-stepping circuit for an electromagnetic device such as a uniselector comprises a magnet coil D in series with interrupter contacts I, a resistor R, light current contacts r to initiate self-stepping, and a relay B; drive to the magnet coil D being taken from an amplifier T1, T2, T3, activated by contacts b of relay B after a delay introduced by circuit A. The current operating relay B in response to operation of contacts r is insufficient to operate magnet coil D or do harm to contacts r. The delay introduced by A allows magnet coil D to deenergize fully before being required to take another step. A diode q protects transistors T1, T2 of the amplifier from overvoltages when coil D is disconnected. Contacts d operate to drive the magnet coil D for single step operation. The contacts b, d and r may be reed contacts or may be transistor switches.
Patent GB-452200-A (GB)
Title: Lubricating pump
IPC: F16N13/18
Filed: 1936-04-22
Abstract: 452,200. Lubricating-pumps. MULLER, E. L., 215, Kurf³rstendamm, Berlin. April 22, 1936, No. 11528. Convention date, May 9, 1935. [Class 102 (i)] A lubricating - pump is mounted on a moving part and is actuated by momentum. The cylinder 2 is stepped and slides in a casing 1 and contains a stepped piston 5 which is slightly longer than the cylinder. The piston and cylinder move together until the piston strikes one of the abutments 3, 4, and the further movement of the cylinder causes suction and delivery in the annular pumping space. The cylinder has suction and delivery ports 9, 6 respectively which co-operate with suction and delivery ports 10, 7 in the casing. The suction port 10 is connected to a chamber 11 fed with lubricant from a reservoir through a slot 13. A momentum actuated valve 14 allows release of air from the chamber 11. A fitting 18 may be removed to allow the pump to be flushed.
Patent GB-183560-A (GB)
Title: Improvements in or relating to spools for photographic or the like films
IPC: G03B17/30
Filed: 1921-04-22
Abstract: 183,560. Rivetta, G. April 22, 1921. Winding webs.-A spool for winding photographic films has an inclined groove 4, extending almost the whole length of the spool, and enlarged at its inner end to form a triangular space 6. The end of the film is bent over and inserted within the groove until the bent-over tongue passes the projection 9, when, owing to its elasticity, the tcngue is pressed against the far side of the space 6, as shown in Fig. 3.
Patent GB-667447-A (GB)
Title: Improvements in and relating to frequency control systems
IPC: H03L7/04
Filed: 1950-05-11
Abstract: 667,447. Automatic frequency control systems. BRITISH THOMSON-HOUSTON CO., Ltd. May 11, 1950 [May 21, 1949], No. 11787/50. Class 38 (iv). The local heterodyne oscillator 7 of a pulse radio-echo system has its frequency controlled by three loop circuits A, B, C of which A provides a quick-acting control over a narrow frequency range, C provides a slow-acting control over a wider range, and B varies the tuning frequency of the discriminator 17 in accordance with deviations in the intermediate frequency. The aerial system 3 is connected through a TR switch 4 to the transmitter 1 and receiver 2. The local oscillator 7, shown as a reflex klystron, feeds the mixer in the receiver 2, and also feeds a balanced off-time discriminator 17 of the kind using resonant cavities. The discriminator output is fed through an amplifier 18 and an adjustable bias device 33 to the reflector electrode 10 to adjust the frequency for small deviations. When the deviation is of larger amount, loop C comes into operation, and the control voltage from the amplifier 18 passes the limiter 30 to control an amplifier 31 and motor 32, which adjusts tuning- plugs 11, 12 in the sense to correct the frequency deviation, and also adjusts the bias device 33 in the direction to provide optimum operation of the klystron. By means of loops A and C, the local oscillator thus tends to maintain its frequency at the centre frequency of the discriminator 17. It is, however, desirable that the local oscillator frequency should follow any variations in the transmitted (and received) frequency in order that the I.F. in the receiver should be invariable. This control is effected by mixing the local oscillation with the transmitted oscillation at 20, and feeding the beat frequency through an amplifier 22 to a discriminator 23 tuned to the desired intermediate frequency, the discriminator output being amplified at 24 and passed to a motor 25 for adjusting at 171 the centre tuning of the discriminator 17. Loop A or B now operates to adjust the klystron frequency in accordance with the new setting of the discriminator 17.
Patent GB-124138-A (GB)
Title: Improvements in Directional Aerials for use in Wireless Telegraphy.
Inventor: WRIGHT GEORGE MAURICE
IPC: G01S1/02
Filed: 1918-07-18
Abstract: 124,138. Wright, G. M. July 18, 1918. Directive wireless signalling; aerials.-In a directional aerial of the frame type, an adjustable condenser d located in an acceasible position is connected to the top of the flame by a pair of symmetrical leads. In order to keep the transformer winding symmetrical and to make the earth connexion readily adjustable to the potential node, a split transformer winding a, b is used, and an inductance c with an adjustable earthed contact is connected between the two parts a, b.
Patent GB-686695-A (GB)
Title: Improvements relating to stair carpet grips
Inventor: MCDONALD COLIN STEWART
IPC: A47G27/06
Filed: 1950-05-12
Abstract: 686,695. Stair-carpet fasteners. MONO CURTAIN RAIL CO., Ltd. May 7, 1951 [May 12, 1950], No. 11849/50. Class 52(v) A stair-carpet fastener comprises a U- shaped clip member with its lower arm 113 slit to form an outwardly directed tongue 114 which engages behind an upstanding part 101 of a bracket 10 attached to the stair. The outer arm 111 of the clip is set at an angle .so a canting force is set up to ensure firm engagement of the clip section of the bracket.
Patent GB-349244-A (GB)
Title: Improvements in cements for capping electric lamps and the like
IPC: C08K5/521
Filed: 1930-04-15
Abstract: A cement for electric lamp caps and the like, contains in addition to the usual resins or artificial resins, solvents and fillers, one or more esters, having a high boiling point, of an inorganic acid or acids.  As examples of the resins is given shellac, colophony, and Bakelite, as solvents alcohol and acetone, as fillers calcspar and whiting, and as esters triphenyl and tricresyl phosphate.  Additions of 1 to 3 per cent are mentioned.
Patent GB-221242-A (GB)
Title: Improvements in insulators
IPC: H01B17/10
Filed: 1923-05-03
Abstract: 221,242. Polyblank, W. J. May 3, 1923. Oval-link chains; links made of non-metallic materials.-An insulator is composed of a series of links or members of insulating- material connected together with approximately point, knife-edge, Figs. 3 and 4, or line contact. The links are of closed formation and form a chain the links of which are free to rock relative to the next links. Soft pads may be inserted between the interlocking links. The links may be formed with strengthening cores of insulating - material, for example asbestos or fibre.
Patent GB-1286337-A (GB)
Title: Improvements in or relating to nitrile alcohols
Inventor: DAUM GERHARD
IPC: C07C/
Filed: 1970-03-12
Abstract: 1286337 Nitrile alcohols DYANAMIT NOBEL AG 12 March 1970 [13 March 1969 27 March 1969] 12024/70 Heading C2C Nitrile alcohols of the general formula (I) where R 1  is H, C 1-4  alkyl or aryl, R 2  is H or C 1-4  alkyl, or R 1  and one of the R 2  radicals together or both of the R 2  radicals together form part of a carbocyclic ring, X is -CH 2 - or -CH 2 CH 2 - which may be alkyl-substituted and n is 0 or 1, some of which are novel, are prepared by hydrogenating an oxonitrile of the general formula where R 1 , R 2  and n are as above and X<SP>1</SP> is the same as X or is an unsaturated precursor thereof, with hydrogen in the presence of platinum or a platinum-containing catalyst in an amount of at least 0À12% by weight Pt based on the weight of oxonitrile. Temperatures should preferably not exceed 35‹ C., higher temperatures resulting in hydrogenation of the nitrile group as well. 2- Methyl- and 2,3-dimethyl-piperidines are formed as by-products in Examples 1 to 4.
Patent GB-527866-A (GB)
Title: Improvements in alloys
IPC: B23K35/30
Filed: 1939-04-21
Abstract: 527,866. Alloys. HANDY & HARMAN. April 21, 1939, No. 12095. Convention date, April 23. 1938. [Class 82 (i)] An alloy particularly for use as a solder for stainless steels or irons consists of 40-70 per cent. of silver, 20-50 per cent. of copper, 5-15 per cent. of manganese, 2-7.5 per cent. of nickel, and 0.15-0.4 per cent. of silicon. In making the alloy, the silicon may be added in the form of a 20 per cent. silicon-copper alloy. Specification 527,865 is referred to.
Patent GB-108743-A (GB)
Title: Improvements in Advertising Signs, Display Tablets, and the like.
Inventor: TREMAYNE ARTHUR
IPC: G09F7/08
Filed: 1916-08-28
Abstract: 108,743. Tremayne, A. Aug. 28, 1916. Loose - letter and like signs.-In advertising-signs in which interchangeable letters, numerals, &c. are mounted on a board, the letters f are hung on rods, strips or the like b of glass or translucent material supported in a frame provided with a screen d of translucent material such as coloured or opal glass. The screen d may be illuminated by a lamp h enclosed in a casing g which may be provided with a support, i.
Patent GB-611127-A (GB)
Title: Improvements in building blocks
IPC: E04B2/18
Filed: 1946-04-20
Abstract: 611,127. Building blocks; wall ties. HEMS, H. April 20, 1946, No. 12150. [Classes 20(iv) and 87(i)] [Also in Group XV] An apertured block provided on its upper face with two projections 12 spaced apart by twice the thickness of the end walls 10 as in Specification 607,376 is formed with slots 14 in the lower edge of the front and, if desired, rear face 11 to receive metal ties 17 in the formation of a double wall. An opening 15 may be provided to receive a floor beam. The ties 17 which may have both ends turned down as at 19 or one end divided as at 18 are received in slots in the upper edges of inner wall slabs the lower edges of which are bevelled. The inner and outer walls may be spaced apart by wood blocks associated with the ties. Corresponding half blocks are provided with one projection 12.
Patent GB-1031892-A (GB)
Title: Improvements in or relating to folding machines
Inventor: SLAWIG WOLFGANG
IPC: B65H45/18
Filed: 1963-03-27
Abstract: 1,031,892. Folding apparatus. LEIPZIGER BUCHBINDEREIMASCHINENWERKE VEB. March 27, 1963, No. 12158/63. Heading B6H. A folding knife for folding machines wherein the knife blade is mounted in a tensioning frame. The tensioning frame comprises two end holders 6, a central strut 7 and a tensioning element 8. The blade 1 is double-edged and may be inverted so as to use either edge 2 or 3. Knife braces, Fig. 2, are clamped to the blade 1 and mounted on the central strut 7 so as to be slidable in longitudinal and transverse directions to the blade enabling the blade to be tensioned without interference. Brackets 16 supporting knife needles 13, known per se, may be clamped or screwed upon the blade 1. The end holders 6 are mounted for longitudinal movement in end guides 24 which are mounted rotatably, pivotally or slidably in a stand 25. The driving lever 28 may be provided with a stroke adjustment device comprising an eccentric bolt mechanism, Fig. 8 (not shown).
Patent GB-102037-A (GB)
Title: Improvements in and relating to Jacks or the like Lifting Devices.
Inventor: SCOTT ALFRED ANGAS
IPC: B66F15/00
Filed: 1916-08-29
Abstract: 102,037. Scott, A. A. Aug. 29, 1916. Jacks.-A lever jack or lifting-device comprises a number of bars 2, 4, 16, 17 pivoted together to form a collapsible structure, and a lever 12, 13 pivoted thereon and to a free arm or bar 7, one end 10 of which is adapted to engage the load to be lifted, while the other end has means, such as the notch 8, for engaging the pin 6 of the supporting-structure with the load in a predetermined lifted position of the lever. To release the load, pressure is applied to the handle 13 and to the end 9 of the bar 7 to release the notch 8 from the pin 6. The supporting-structure may be pyramidal, and one leg 4 may be in the form of a double bar, between which the stops 6 for the bar 7 and the pivot 3 for the operating-lever 12 are carried.
Patent GB-911532-A (GB)
Title: Elevated travelling truck-unloader or loader
IPC: B65G67/00
Filed: 1961-06-21
Abstract: 911,532. Gantries for unloading vehicles. ASSOCIATED PORTLAND CEMENT MANUFACTURERS Ltd. June 21, 1961 [June 22, 1960], No. 22521/61. Class 78 (4). Bulk material 8, Fig. 1, is unloaded from a waggon 3 by a shovel 7 on an articulated boom 6 which is supported by a wheeled platform 1 in such a way that the machine operator has a clear view of the shovel in operation. As described the boom is hydraulically operated and the platform may be self-propelled. Material may be unloaded on to a conveyer 12 via a shoot 13 movable on rails 15. The shoot may be mounted on the platform. In addition to the shoot the receiving end of a conveyer 18, Fig. 3, may be supported by the platform. The delivery end of the conveyer may be fixed or may travel with the platform. The conveyer drive may be separate or taken from the power supply to the shovel. The platform is preferably electrically driven through reduction-gear 21, Fig. 4, and a chain 20. Alternatively an hydraulic motor could be used. The platform is anchored to the track by a pair of jaws 23, Fig. 7, which are raised into engagement with a rail 11 when a wedge-shaped member 28 is urged under a roller 26 pivoted to the jaws. The wedge 28 may be moved by a ram 28, Fig. 4. The platform may have road-wheels or endless tracks.
Patent GB-377301-A (GB)
Title: Improvements in or relating to reading desks
IPC: A47B23/06
Filed: 1931-04-25
Abstract: 377,301. Desks. COOPER, H. C., 57, Victoria Street, London. April 25, 1931, No..12307. [Class 52 (iii).] A book holder has a peg for engaging the back of the binding mounted so as to be adjustable backwards and forwards. Fig. 2 shows a book stand consisting of a baseplate 1 and a slope 2 with a ledge 3 for receiving the edges of a book. The stand is supported by hinges 5 and by an adjustable strut 6, 8 pivoted to brackets 10, 14 on the slope and base respectively by a ring 9 and a removable pivot 15 on a cord 16. On the ledge 3 is a spring-supported retaining-peg 18, Fig. 4, pivoted to a flat sliding member 20, which may be adjusted backwards and forwards,- and is retained by a spring pin 23 engaging in one of a line of recesses 22. A curved guide 27 sunk into the base 1, coacts with the rear end of the member 20 and pushes it upwards as the slope 2 is folded down. Additional devices for holding the pages consist of arms 28, Fig. 5, on split pins 29 pushed into liners 31, and cords 32, Fig: 2, which are passed over the top edges of the book, and have weights on their free ends. They may be fitted. so as to slide on a runner at the top of the slope. An electric lamp 35 and switch 37 are mounted on brackets 36 and fitted with a shade 38 ; an additional lamp or reflector may be fitted at the top of the rest. The base may have means for attachment to sag the arm of a chair.
Patent GB-1151828-A (GB)
Title: Gang of Variable Resistance Devices with Removable Board Carrying Settable Taps.
Inventor: IZENOUR GEORGE C
IPC: H01C10/40
Filed: 1968-03-14
Abstract: 1,151,828. Variable resistors. CENTURY LIGHTING Inc. 14 March, 1968, No. 12368/68. Heading H1S. A row of resistance strips 28, each having a parallel collector 34 and a presettable tap 54, the taps 54 being mounted on a panel 36 which may be moved so that the taps 54 disengage the strips 28. The panel 36 is located on a carriage 78 by interengageable members 116, 118. The carriage 78, guided by shafts 84 passing through bushings 82, is held against cams 94, 96 by elastic cords 104. The cams 94, 96 are fixed to shafts 86, 88 interconnected by gear sectors 90, 92 and rotated by a lever 100. Upon engagement of the strips 28, arms 108, 110 lock the panel 36. Upon disengagement, flaring portions 14a, 16a of the casing 10 allow the arms 108, 11O hinged at 112, to be swung away from the locking position by an interconnecting spring 114.
Patent GB-340195-A (GB)
Title: Apparatus for indicating pollutions in the atmosphere by illuminating- and similar gases
IPC: G01N25/36
Filed: 1930-04-22
Abstract: <PICT:0340195/III/1> A device for indicating the presence of combustible gases in the atmosphere comprises a curved bimetallic strip 1 surrounding a catalytic element 5, for example of platinized asbestos, which is maintained at an elevated temperature by a heating element 6 composed of silundum and connected directly across the mains.  The presence of oxidizable gases increases the temperature of the catalytic body and the strip 1 expands and completes an electric circuit.  It may be retained in this position by a catch 14.
Patent GB-939117-A (GB)
Title: Improvements in and relating to electrical wall fixtures
IPC: H02G3/12
Filed: 1962-03-30
Abstract: 939,117. Two part couplings; cases for couplings. J. A. KOZMIK, and L. O. LANGFORD. March 30, 1962, No. 12410/62. Class 38 (1). A box such as 66 (Fig. 5) designed to fit in a wall carries a socket member such as 45, a casing such as 25 (Fig. 3) which fits into the box having apertures in its rear wall into which socket outlets such as 45 can fit so as to be engageable by plug 44 which is then wholly within the casing. Casing 25 has a flange 36 to which is hinged a cover 50 which may be spring biased to the closed position and which is provided with openings for the leads and a screw 60 which threads into a tapped hole in the flange to retain the cover in the closed position. As an alternative (Fig. 7, not shown), the cover may be in two sections slidably mounted on the casing. In a further embodiment (Fig. 8, not shown), the socket may be in an opening in the side wall of the casing.
Patent GB-1063725-A (GB)
Title: Improvements in hydraulic pumps
Inventor: MEDLAM STANLEY WALTER
IPC: F04B1/14
Filed: 1965-03-24
Abstract: 1,063,725. Reciprocating pumps. OSWALDS & RIDGWAY Ltd. March 1, 1966 [March 24, 1965], No.12442/65. Heading F1A. In a swash plate pump, the pistons 4 are held in engagement with the swash plate 1 by a plate or spider 10 pivotally mounted on a sleeve 11 spring biased towards the swash plate. A stabilizer pin 8 is slidable in a bearing 16, 17 fixed to plate 10, to prevent rotation of plate 10. Each piston 4 has part-spherical faces 3a, 3b engaging the swash plate 1 and a thrust washer 15 mounted on plate 10. Cylinders 5 project through a bulkhead 7, and are screwed into a cylinder block 6, and locked in position by a nylon pellet 25 and grub screw 26. Sealing rings 18 and 20, and a leakagecollecting groove 22 connected to passages 23, 24, are provided.
Patent GB-330358-A (GB)
Title: Washing machines
IPC: D06F17/12
Filed: 1929-04-22
Abstract: 330,358. Barker, P. E. April 22, 1929. Washing-boilers.-A washing-boiler consists of an outer cylindrical vessel A and a removable concentric unit comprising a washing chamber 18, and a chamber 14 containing a suction fan 20 driven by a motor 21. The fan chamber is closed by a lid 5 overhanging the outer vessel and is separated from the washing chamber by a diaphragm 11 having a central opening protected by a baffle 16. The fan exhausts the air from chamber 18 and the washing liquor rises, forming a water seal 19 which is then constantly broken, air rushing in and agitating the liquid and articles to be washed. The annular chamber 9 is freely open to the atmosphere by constructing the cover 5 and border rim 6 to leave air passages. An overflow opening 3 may be so disposed as to allow a predetermined quantity of washing liquor to enter the washing chamber. The machine is preferably portable and may be heated on an ordinary domestic stove. The surfaces of the cylindrical vessels may be corrugated.
Patent GB-139367-A (GB)
Title: Improvements in and relating to steam superheater elements
IPC: F22B37/10
Filed: 1919-05-17
Abstract: 139,367. Stenning, H. A., and Bray, H. P. May 17, 1919, Superheating-tubes with external coverings.- The return bend of a U-tube element inserted in a smoke-tube of a locomotive or like boiler is protected by a cap formed with apertures, slots, or the like to allow the hot gases to come in contact with the end of the element. The cap 7 on the return bend 8 is formed on each side with slots 15 and holes 14, and is so shaped that a tapered space is left between the cap and the 'bend. The cap is secured by bending over projections 13 to engage between the legs of the bend. In a modification, the cap is so spaced from the bend that the hot gases entering the cap through the apertures may pass all round the bend. In a further modifictaion, the cap fits closely upon the bend.
Patent GB-560827-A (GB)
Title: Improvements in recording apparatus
IPC: G07C1/08
Filed: 1942-09-04
Abstract: 560,827. Recording apparatus. AKTIEBOLAGET LJUSSIGNALER and ERICSSON, G. G. A. Sept. 4, 1942, No. 12506. [Class 106 (iv)] A recording apparatus comprises a number of styluses mounted side-byside for recording in associated columns of a travelling strip of paper, and capable of being swung by two electromagnets 1 to one or other side of a mid-position against spring action, a number of contacts 10 in the circuits of said electromagnets and corresponding to the number of working-machines whose operations are to be recorded, said contacts 10 being closed by constantly-driven cams 11 in such a manner that any two electromagnets associated with the same stylus cannot be energized simultaneously, and contacts 9 controlled by the working-machines and in series with contacts 10 so as to enable each stylus to be used for individually recording the operation of a plurality, e.g. four, of separate working machines. ' An armature 3 is displaceable by either of two electromagnets 1 and controls a stylus 7, Fig. 2 (not shown). The number of high points in the cams 11 associated with the machines connected to one magnet varies as shown in Fig. 4, so that the density of the lines produced, Fig. 3, indicates whether none, one or both machines are working. The high points are angularly placed to prevent both magnets being energized at the same time More than four machines may control each stylus, and each cam 11 may control several machines associated with different styluses.