baber/WOPTO huggingface dataset:
Patent GB-613583-A (GB)
Title: Improvements in or relating to automatic switches for use in telephone and like systems
IPC: H04Q3/00
Filed: 1946-06-19
Abstract: 613,583. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., PEARCE, O. A., and TAYLOR, R. June 19, 1946, No. 18365. [Class 40 (iv)] In a group selector which tests for battery on an idle outlet, the rotary magnet circuit and test circuit are closed alternately over interrupter contracts of the magnet in order to reduce the danger of false operation should an outlet become idle as the wipers are stepping off it. The invention is applied to a double-hunting selector which resumes its rotary movement upon release, as described in Specification 391,123, and which may serve as a first selector, an incoming selector or an intermediate selector. The strap 11, 12 is provided if the preceding equipment is of the battery testing type, while the strap 10, 11 may be used to give an imme - diate guard at a first selector stage as soon as line relay A operates, as in Specification 574,312. Guard relay B energizes in series with the vertical magnet VM and connects up HA, these two relays being short-circuited alternately during impulsing. The release of HA by continued short-circuiting closes the selfinterrupting circuit for the rotary magnet RM which at each operation connects test relays HX, HY over its contacts RMC to test wipers P1, P2, the connections including rectifiers MRA, MRB, as in Specification 446,683. When an idle outlet is found, HX or HY energizes and locks in series with the corresponding switching relay HA or HB. If both wipers find idle outlets, HX opens the locking circuit of HY. If no idle outlet is found, HY energizes in the eleventh position, HB switches through to line relay A and a busy signal is given over springs S. The test and switching relays are held after the relapse of B by earth applied to the test wire at the succeeding selector, and upon release, the removal of this earth provides a brief unguard period to release the preceding switches before HA or HB falls back slowly and replaces earth on the test wire until the selector is normal. An alarm may be given over wire 16 if the selector is not operated after seizure or over wire 15 if it fails to restore.
Patent GB-1208228-A (GB)
Title: Concrete wall form with load gathering and distributing members therefor
Inventor: BOWDEN GEORGE FRANCIS
IPC: E04G11/12
Filed: 1969-04-10
Abstract: 1,208,228. Wall shuttering. SYMONS MFG. CO. 10 April, 1969, No. 18543/69. Heading E1S. Braced wall forms are connected in opposed spaced relationship by means of tie rod assemblies, each assembly comprising a tie rod proper 32 (fig. 5) which remain permanently embedded in the concrete, a removable shebolt 33 mounted on each side of the tie rod and a spreader fork 34 mounted in an annular groove 46 on each she-bolt. The load of poured concrete is thus transferred from panels 12 (fig. 1) through vertical studs 14, horizontal studs 18 and workers 16 to the tie rod assemblies, the spreader forks preventing shifting of the workers on the she-bolts.
Patent GB-1377139-A (GB)
Title: Motor control device
IPC: B65H54/38
Filed: 1972-04-21
Abstract: 1377139 Automatic speed control SCHWEITER ENG WORKS Ltd 21 April 1972 [23 April 1971] 18604/72 Heading G3R [Also in Division H2] The supply to a polyphase motor is controlled using a bi-stable switch, according to the time taken for the motor to accelerate between predetermined speed limits. In an embodiment, the speed of a three-phase motor M is caused to alternate between upper and lower limits by the difference between a motor speed signal from tachometer T and a reference from potentiometer 12, the difference being fed via Schmitt triggers 15, 14, which set the upper and lower speed limits respectively, to flip-flop 16, phase controllers R 19 , S 19 , T 19 , trigger circuits R 18 , S 18 , T 18 , and Triacs R 17 , S 17 , T 17  between the supply 10 and motor M. To maintain the motor average speed constant for varying supply voltages or motor loads, gate 21 compares the period to accelerate from the lower to upper limit with a reference period from monostable circuit 22, which is triggered by pulses from Schmitt trigger 15. If the acceleration period is greater than the reference, i.e. for heavy loads, pulses from gate 21 increase the firing angle of the Triacs via integrator 20, to decrease the acceleration period. If the load reduces, i.e. reference period is greater than the acceleration period, gate 21 produces no pulses and integrator 20 discharges via resistor 23 to reduce the firing angle, see also Figs. 2-6 (not shown). The motor is used to drive a grooved drum and spindles for yarn packages, in a yarn winding machine, and prevents "patterning" of the wound yarn.
Patent GB-367694-A (GB)
Title: Improvements in and relating to the manufacture of pencils and the like
IPC: B43K19/16
Filed: 1931-06-29
Abstract: 367,694. Ornamenting pencils &c. STAEDTLER, J. S. (Firm of], 9, R³ckertstrasse, Nuremberg, Germany. June 29, 1931, No. 18712. Convention date, July 24, 1930. [Classes 93 and 146 (iii).] Pencils and like articles are ornamented by passing them through or under a colour wiper so that striped patterns are produced thereon. The pencil &c. b is passed into a bath a of colour and is removed through an aperture in which a wiper c is removably secured. The hole in the wiper is so formed as to produce a series of longitudinal stripes of colour on the pencil &c., the rest of the colour being removed. The part of the wiper which contacts with the pencil &c., or, if desired, the whole of the wiper, is formed of elastic material. The pencil &c. and wiper may be moved relatively to one another during the longitudinal movement, axial movement producing patterns in which the colour is interrupted at regular intervals, and rotary movement producing helical or wavy stripes.
Patent GB-1416770-A (GB)
Title: Rotary piston internal combustion engines
IPC: F02B53/00
Filed: 1973-04-18
Abstract: 1416770 Rotary I C engines GENERAL MOTORS CORP 18 April 1973 [1 May 1972] 18713/73 Heading F1F A rotary I.C. engine of the Wankel type comprises charge intake means including a pair of end wall intake ports 39 through which an air-fuel mixture is introduced during the latter part of each intake stroke and a peripheral port 35 open to the respective chamber 28, 28 or 28 during the whole intake stroke, which port 35 admits a gaseous mixture in which the ratio of fuel to air is between zero and a value below that of the mixture entering via ports 39. In an alternative embodiment, the two end ports 39 are replaced by a single end port and the peripheral port 35 is replaced by an end port Figs. 8 and 9 (not shown). COMBUSTION CHAMBERS. Each side of piston 22 has a pair of recesses 50, 68 separated by a wall portion 62 which, at maximum compression, forms with the housing cusp portion a restriction between recesses 58, 60. At this position, Fig.6, the plug 36 ignites the rich mixture in trailing recess 58, and shortly afterwards the leaner mixture in leading recess 60 is also ignited.
Patent GB-181252-A (GB)
Title: A new or improved collapsible or folding cardboard or like box or container
IPC: B65D5/36
Filed: 1921-07-11
Abstract: 181,252. Shill, A. E., Richmond, A., and Rose, H. W. July 11, 1921. Wrappers.-A collapsable cardboard &c. container is con structed from a mair body blank a, Fig 1, to which inwardly folding end pieces b Fig. 2, are attached the end pieces being formed with project ing pieces b<1>, b<2>, adapted to be se cured to appropriate parts of the mair blank by adhesive. The completed con. tainer has tho appearance shown in Fig. 3; the strips forming the upper edges are provided with holes 6 for the accommodation of a cord 7 to which a carrying handle is secured. When filled and closed the ends flatten out and the container assumes a rectangular form. The container when empty can be folded flat by pushing in the ends.
Patent GB-806191-A (GB)
Title: Improvements relating to fluorescent materials
Inventor: SERGEANT GEOFFREY
IPC: C09K11/77
Filed: 1954-06-25
Abstract: 806,191. Luminescent materials. SIEMENS EDISON SWAN Ltd. June 3, 1955 [June 25, 1954], No. 18734/54. Class 39(1). A fluorescent material responsive to radiation of 2537 Š comprises a fired mixture of calcium pyrophosphate activated by cerium and manganese with one of lithium, sodium and potassium, and an additional phosphate and a flux consisting of ammonium chloride and/or fluoride. The additional phosphate can be an ammonium hydrogen phosphate. The mixture can be fired between 1100‹C. and 1200‹C., e.g. between 1130‹C. and 1180‹C. or between 1100‹C. and 1140‹C., in air or oxygen, in steam or in steam to which oxygen has been added. The cerium can be added as ceric oxide and the manganese as phosphate. The lithium, sodium or potassium can be added as chlorides, sulphates, nitrates or carbonates. Proportions are given. The provisional specification refers to the use of metals in Group I of the Periodic Table other than lithium, sodium and potassium, e.g. silver. This subject matter is contained in specification 806,192. Reference has been directed by the Comptroller to Specification 746,273.
Patent GB-776708-A (GB)
Title: Improved push button tuning apparatus for radio sets
IPC: H03J5/12
Filed: 1955-06-29
Abstract: 776,708. Adjusting radio apparatus. RANDERSON, K. D. June 29, 1955 [June 26, 1954], No. 18794/55. Class 40(5) In push-button tuning apparatus, each push-button comprises a member which, when the push button is depressed, engages pins projecting from the sides of a respective disc mounted upon the shaft of a rotary capacitor and thus rotates the capacitor to a position depending upon the angular setting of the disc upon the shaft. Each push button comprses a sliding cross-piece 8 which is supported by guide rods 9, 10 and biased outwardly by a spring 15, each cross-piece 8 having end surfaces 8e, 8h and being also provided with projecting tongues 8d, 8g which are disposed on opposite sides of the plane of the member 8. Co-operating with each cross-piece is a disc 17 which is mounted and held frictionally upon the shaft 3 of a rotary tuning capacitor 2. Each disc 17, Fig. 5, is provided with projecting pins 18, 19, 20, 21, the pins 20, 21 being longer than the pins 18, 19 and the pin 21 being arranged on the rear side of the disc as seen in Fig. 5. Assuming the disc 17 is disposed on the shaft 3 as shown in Fig. 1 when the corresponding push button is depressed, the tongue 8g engages the long pin 20, Fig. 6 (not shown) and pushes the disc round in an anti-clockwise direction until the pin 20 moves out of the path of the tongue 8g, by which time the pin 18 has come into a position in which it is engaged by the endface 8h of the cross-piece 8, Fig. 7 (not shown). Being short, the pin 18 is able to move without obstruction from the tongue 8g, which as stated above does not lie in the same plane as the main portion of the cross-piece, and hence the disc continues to rotate with further depression of the push-button until the pin 19 meets the end-face 8e, Fig. 8, when further movement of the push-button or of the disc is impossible. This position of the disc represents the desired setting of the capacitor. In the operation described above the tongue 8d and the pin 21 were not involved. When however the initial and desired settings of the shaft are such that clockwise motion is required, the disc will have such a setting with respect to the member 8, that the tongue 8d, passing behind the disc as seen in the figures engages the pin 21 to commence the clockwise motion, this being subsequently taken over by the endface 8e engaging pin 19. The shaft 3 is provided with a knob, Fig. 3 (not shown), for effecting manual adjustment. When it is desired to set a particular push-button to a given radio station, the button is held depressed while manual adjustment of the capacitor is effected, the disc then taking up the appropriate angular setting on the capacitor shaft 3.
Patent GB-1337860-A (GB)
Title: Nitrodiphenyl ether derivatives and their use as herbicides
Inventor: ABE YASUNORI
IPC: C07C317/14
Filed: 1971-06-04
Abstract: 1337860 Nitrodiphenyl ether derivatives NIPPON KAYAKU KK 4 June 1971 [22 June 1970] 18921/71 Heading C2C The invention comprises compounds of the general formula in which R 1  is a C 1 -C 6  alkyl group or allyl, R 2  is hydrogen, chlorine or methyl, R 3  is hydrogen or chlorine, and n is 0, 1 or 2. They may be prepared by condensing a phenol of formula with p-chloronitrobenzene in the presence of an acid binding agent. The products may be used as active ingredients in herbicidal compositions.
Patent GB-278126-A (GB)
Title: Improvements in or relating to endless belt conveyors and elevators
IPC: B65G17/06
Filed: 1926-07-30
Abstract: 278,126. Rankine, D., Ross, J. W. H., and Lennard, T. C. July 30, 1926. Flat endless belt conveyers; driving-gear,. guiding; auxiliary ropes.-In conveyers of the kind detachably connected to and supported by ropes or cables which transmit the drive, the ropes &c. are detachably connected by rope grips &c. to one or more driving units consisting of endless driving chains, belts, ropes, &c. A<1> - - A'. The supporting rope 21 comprises a series of loops B<1> - - B<3>. &c. the ends of each of which are attached by a swivel connection 26, Fig. 4, to one of the axles 22 running on a track 23. Fins are provided under each axle to form a vertical connection between the sides 21a or 21b of adjacent loops. The bight 21c of each loop is passed through a guide 27 on an axle. The belt 20 is provided with side plates 34 to form a trough and is supported upon and secured to the axles 22, which are provided with similar side plates to form part of the The plates 34, Fig. 9. are connected in pairs by a cross-strap 35 which rests on the rope 21 and is connected to the belt. The driving units A<1>- - A<3>, &c. are connected to the rope. 21 by grips comprising a pair of parallel jaws 36, Fig. 10, slidable upon a pair of parallel pins 37. Each jaw is moved against. the action of springs 38 to release the rope by the heel of a lever 39 when a roller 41 thereon engages a cam bar 42. The grip is mounted on a chain 43 which passes round sprockets 24, 25, one of which is driven by any source of power. In a modification the belt 20a. Fig. 18, is attached to straps 49 supported by brackets 48, which are carried by axles 32 provided with clamps 50 for gripping the ropes 46. The pivoted rope grips G are mounted on a driving chain 58 and are actuated by cam bars 56. The ropes 46 are formed with opposed loops 46a, Fig. 14, controlled by a transversely floating device which connects the middle of one loop to the middle of the other loop. The floating device comprises a sleeve 62, Fig. 15. slidably mounted on a cross-shaft 32a and having grooved guides 63 to engage the loops 46a. The shaft has end rollers 31a which run on the track 52.
Patent GB-1413180-A (GB)
Title: Fastener
IPC: F16B33/06
Filed: 1973-04-19
Abstract: 1413180 Electro-plating a fastener MIDWEST CHROME PROCESS CO 19 April 1973 [3 May 1972] 19097/73 Addition to 1408285 Heading C7B [Also in Divisions B3 and F2 A modification or an improvement of the fastener of Specification 1408285 comprises coating the fastener with a layer of thickness 0.000005 to 0.0002 inches of at least one material of the group consisting of a Sn/Ni alloy, a Sn/Co alloy, or a Sn/Ni/Co alloy. The layer may be applied by an acid electrolytic coating bath, e.g. SnCl 2 , NiCl 2 .6H 2 O, ammonium bifluoride, and ammonium hydroxide to a pH of 2.5. The operating temperature of the bath is 150F  5 with a c.d. of 15 to 20 amps/square foot.
Patent GB-800025-A (GB)
Title: Improvements in and relating to picture projectors
Inventor: BOWEN ARTHUR
IPC: G03B19/18
Filed: 1955-07-04
Abstract: 800,025. Focusing aid for picture projectors. BRITISH THOMSON-HOUSTON CO., Ltd. July 2, 1956 [July 4, 1955], No. 19281/55. Drawings to Specification. Class 97(1) An optical or kinematograph projector is provided with a mask which can be inserted in the projection beam to block out the light passing through an area surrounding the projector lens axis so that by viewing the screen image formed by the marginal rays the focus can be checked or adjusted.
Patent GB-1111203-A (GB)
Title: Improvements in and relating to the manufacture of alkali cellulose and cellulose ethers
IPC: C08B11/02
Filed: 1966-05-03
Abstract: Alkali cellulose or cellulose ethers are made by passing a fibrous and friable mixture of appropriate, conventional ingredients through a double- or multi-screw press having a rectangular thread profile, one or more screws being counter-rotated with respect to the remainder. Suitably a double-screw press is used, having a greater depth of thread in the portion not occupied by the intake and a lesser depth at the intake portion, as illustrated in the Figure (not shown).  The preparation of alkali cellulose from cellulose and NaOH, and carboxymethyl cellulose from alkali cellulose and sodium monochloracetate is exemplified.
Patent GB-342993-A (GB)
Title: Improvements in or relating to casings for electromechanical lamps
IPC: F21L13/08
Filed: 1930-06-27
Abstract: 342,993. Dynamo lamps. BERNASCONI, C. and BERTHIER, R. M., Villa Hortense, Chambery, Savoy, France. June 27, 1930, No. 19592. Convention date, July 2, 1929. Addition to 275,975, [Class 39 (ii), Electric lamps, Incandescent]. [Class 39 (ii).] In a lamp as described in the parent Specification some or all of the fixed parts are secured by screws &c. to pieces moulded into the wall of the casing instead of being moulded directly thereto. In the arrangement shown the field-magnet 2 and the connection 28 to the lamp are secured to screwed sockets 81, 87 moulded into the material of the casing. The connection 33 and a channel guide 17 for the rack 13 operating the machine are secured in a similar way. The generator is a magneto with a rotating permanent magnet consisting of a disc with four recesses 6 separating the poles. The magnet is weighted by a lead disc 5 secured to one face and having projections fitting into the recesses 6.
Patent GB-775076-A (GB)
Title: Improvements relating to false twisting devices
IPC: D02G1/06
Filed: 1954-08-12
Abstract: 775,076. Twist tubes. INVENTA AKT.- GES. FUR FORSCHUNG UND PATENTVERWERTUNG. Aug. 12, 1954 [June 21, 1954], No. 19624/56. Divided out of 775,075. Class 120 (2). A false-twisting device comprises a rotatable tube 9 having a flange 10 with one or more holes 11 or slots 13: a yarn which is to be braked passes through the tube and through the hole(s) or slot(s). In the device of Fig. 4, a spring-loaded plate 14 bears against the flange 10 with the yarn passing therebetween.
Patent GB-711320-A (GB)
Title: Improvements in or relating to centrifuges
IPC: B04B3/02
Filed: 1952-08-05
Abstract: 711,320. Centrifugal separators. HERCULES POWDER CO. Aug. 5, 1952 [Nov. 27, 1951], No. 19704/52. Class 23 A strainer separator comprises a basket having a perforated side wall 7 and an imperforate base 6 having a socket member 3, a drive shaft 1 engaging the socket, and a solids discharging piston 8 positioned above the base and actuated by the centrifugal pressure of a fluid supplied to the space between the piston and the base. To ensure rotation of the piston with the basket. indentations in the underside of the piston are loosely engaged by projections 6A on the basket bottom. The piston is raised so that its hub 5 just engages a stop 4 by fluid supplied by a pipe 14, tubular extension 10 fixed to the piston and passages 50 to the space between the piston and base. The piston is lowered by withdrawal of the fluid below the piston through valves 37 and ports 38 in the basket wall. Slurry to be treated is fed into a can, Fig. 11 (not shown), having an arcuate outlet projecting into the annular space between a fixed baffle 25 and a baffle 11 fixed to the piston, and flows between the baffles to the basket.' In a modification, Fig 12 (not shown), both the baffles are fixed to the piston. Wash-liquid pipes 17 .... 22 of different lengths depend into the basket to discharge at levels corresponding to the inlets of liquid-collecting chambers formed by annular partitions 27....32, liquid from the pipe 17 collecting in the inner chamber. Connected vent pipes 15, 13 are provided for the removal of fumes from the casing 26, and compressed air is supplied by a duct 2 to the housing for the drive mechanism to prevent corrosive action of fumes. The screen is formed by perforations 42 in the basket wall and spaced vertical bars 44 attached to the wall by rings 45. A measured quantity nitrocellulose and spent acid slurry is fed to the basket with the piston in its lowermost position as shown. After the acid has been extracted and a mat of nitrocellulose formed on the lower parts of the basket side wall, the piston is raised by the supply of a measured quantity of fluid (spent acid) through the pipe 14. The fluid escapes through the ports and valves and as the piston sinks a second quantity of slurry is supplied to the basket and the mat which has moved up the basket wall is washed with dilute acid from the wash-liquid pipe 17. The cycle of slurry supply and piston reciprocation continues and the mat is finally discharged over the edge of the basket wall to the container between the casing 26 and the partition 27. The dilution of the acid discharged from the wash pipes increases with the increase in level at which the pipe discharges so that the mat is finally washed with water. Dimensions and speeds of a separator suitable for the treatment of nitrocellulose are given in the Specification.
Patent GB-201922-A (GB)
Title: A process for the production of phosphorescent zinc sulphide
IPC: C09K11/56
Filed: 1923-08-01
Abstract: Phosphorescent zinc sulphide is prepared by dissolving crude zinc or pure zinc together with crude zinc in an acid such as hydrochloric acid so as to leave excess of zinc, or treating a zinc salt solution with excess zinc, separating iron from the solution by treatment, with an oxidizing agent such as bromine or permanganate and a basic substance such as an alkali hydrate or carbonate or an alkaline earth, adding a very small quantity of a salt of heavy metal such as a salt of copper, thallium, uranium, or manganese, and precipitating zinc sulphide by an alkali sulphide, sulphuretted hydrogen, ammonium sulphide, or, if the acid radical does not form insoluble alkaline earth salts, with barium or strontium sulphide.  An excess of zinc salt should be left in solution.  The zinc sulphide is dried direct or after a single washing and calcined with exclusion of air, for instance in a tightly closed crucible or in an inert atmosphere or in a vacuum.  The calcination may be carried to 1000 DEG  C.  To increase the luminosity the cooled product is examined in a darkened room, the least luminous portions being picked out and rejected.  The remainder is levigated with hot water, a further quantity of less luminous coarse particles being thus rejected, and finally the product is filtered and dried at or about 100 DEG  C.  Specification 201,549 is referred to.
Patent GB-844983-A (GB)
Title: Board game apparatus
IPC: A63F9/20
Filed: 1958-06-20
Abstract: 844,983. Board games. OAKES, H. O. June 20, 1958, No. 19742/58. Class 132(2). The apparatus comprises two sets of conventional dominoes, one set being distinguishable from the other as by the colour of the pips, and a board marked as shown and having squares each of the size of one domino field, the arrows denoting the direction in which a domino is to lie. One side of the board has alternate lines of squares marked in two different colours for two or four players and the other side uses three different colours for the lines for three players, a player being allowed to place his domino with at least one field only on his own colour. The object of the game being to fill a line on the board with nine domino fields the pips on which total 28. A box is provided for the dominoes and board and has a slidable lid, the undersurface, Fig. 2, of which is formed as a peg-scorer having perimetral lines in the three colours for scoring to 100 and central panels also in the three colours for scoring beyond 100.