baber/WOPTO huggingface dataset:
Patent GB-497040-A (GB)
Title: Improvements in or relating to record-card controlled statistical apparatus
Filed: 1937-06-11
Abstract: 497,040. Perforating record cards. BRITISH TABULATING MACHINE CO., Ltd. June 11, 1937, No. 16306. Convention date, June 12, 1936. [Class 31 (ii)] [Also in Group XIX] Record - card - controlled statistical apparatus with grouped-card and totalpunching controls has means 519, 527 for transmitting the amount in a counter 200 to a register 503, which controls the punches at total-punching, which transmitting means is prevented from acting until the previous total is fully punched. With this arrangement tabulation on a new card group may proceed whilst the total of the previous group is being punched. The punching machine is of the kind set out in Specification 362,529. When a punch selecting magnet 540, Figs. 9 and 6, is energized a corresponding interposer 545 is moved to the left between a plate 546 and the corresponding punch 547. As the interposer moves to the left it rocks an arm 551 which in turn moves a parallel bar 552 to the left, Fig. 7, to close contacts 553 which energize the punch magnet 554 ; the latter pulls down the plate 546 to effect punching. Escapement mechanism then operates to move the card carriage 565 one step to position the next card column under the single row of punches. Carried on the carriage 565 is an insulated pair of brushes 579 for bridging a common bar 580 and segments 581. which latter are plug-connected, Fig. 9, to the desired bars 506 of the register 503. As each card column is punched by the punches 547 the card carriage, in escaping one step to the left, brings the top brush 579 on to the next segment 581 to bring the next bar 506 and its roller 505 in circuit with the row of magnets 540 so that punching proceeds automatically denomination by denomination. At total-taking the magnet 590 is energized and closes all the contacts 590b. As the card carriage reaches its last position to the left, it opens contacts 577 to de-energize the magnet 590. If, however, the next card group is a small one initiation of a totaltaking cycle is prevented while punching is still taking place. For this purpose, during punching the magnet 590 is energized and closes contacts 590d and opens contacts 590e. The latter prevent energization of the totaltaking initiating magnet 254 and contacts 590d (if switch S3 is in full line position) cause the stop magnet 367 to be energized when the card group changes. When the card carriage in the punch reaches its last position it opens contacts 577 and de-energizes the magnet 590. If switch S3 is in full line position the energization of magnet 254 is automatic ; with switch S3 in dotted position the manual total key 363 must be depressed.
Patent GB-794440-A (GB)
Title: Improvements in or relating to cord and drum drive systems
IPC: F16H7/04
Filed: 1955-06-08
Abstract: 794,440. Linkwork; securing drums to shafts. GENERAL ELECTRIC CO., Ltd., and RUNCIMAN, R. D. June 4, 1956 [June 8, 1955], No. 16481/55. Classes 80 (2) and 80 (3). [Also in Group XL (c)] In a cord drive such as for radio tuning capacitors 4 wherein the two ends of a cord 8 carrying a tuning indicator 17 and wound round the spindle 13 of a tuning knob 14 are fixed to a cylindrical cup or drum 1 on the capacitor spindle 3, the drum 1 is frictionally secured to the spindle 3 by means of a split collet 2, Fig. 1, which is riveted to the drum and is forced to grip the spindle by a surrounding helical spring 5 which also serves to tension the cord 8. The internal diameter of the spring 5 in its natural state is slightly less than the external diameter of the collet, and the ends of the cord pass through holes in the drum and are attached under tension to the extended ends of the spring. The inner surface of the collet 2 is coated with cellulose enamel to improve its grip on the spindle. The cord 8 passes round the pulleys shown and is wound three and a half times around the spindle 13.
Patent GB-219307-A (GB)
IPC: C21B7/18
Filed: 1924-07-09
Abstract: 219,307. Isenberg, H. O. C., and Piernay, W. July 16, 1923, [Convention date]. Charging.-A furnace charging-apparatus comprises a rotary pocketed drum 4 and a pair of hinged counterweighted valves 5, 7, which are opened alternately by the. weight of the material. The supply of material to the drum 4 is controlled by a slide 2 and an adjustable guide plate 3, and the direction of rotation of the drum is such that the material is carried over the drum before it is deposited on the upper valve 5. The two valves are offset relatively to one another so that the material is dumped on the lower valve near its pivoted point. The drum is rotated from an eccentric through a lever of adjustable length and ratchet and pawl gearing. According to the Specification as open to inspection under Sect. 91 (3) (a), the valves 5, 7 may be positively operated by arms on the drum shaft and links and lever mechanism. This subject-matter does not appear in the Specification as accepted.
Patent GB-133652-A (GB)
Title: Improvements in and relating to Cores for Pistons of Internal Combustion Engines.
Inventor: SMITH PHILIP HOPKINS
IPC: F02F3/28
Filed: 1919-07-02
Abstract: 133,652. Smith, P. H. July 2, 1919. Pistons.-Centre-pieces or cores for pistons such as described in Specification 22486/14 are stepped and fitted with split expansion rings 4, 5, which, when the core is in place, spring into corresponding grooves in the piston and retain it. Holes in the core and rings accommodate pins which hold the rings in the contracted position while the core is being put in place.
Patent GB-686857-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/27
Filed: 1950-07-05
Abstract: 686,857. Slicing-machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd., and THOMAS, H. Sept. 27, 1951 [July 5, 1950], No. 16750/50. Class 28 (ii). The slice-thickness regulating gauge of a slicing machine is automatically returned to knife guarding position after slicing is finished by the gramophone-like spring inside a rotatable drum through mechanism which also rotates the hand knob, 12 to zero position the drum and mechanism being held inactive by movement of a control rod 27. The apparatus may be added to a gravity feed slicer of the type shown in Specification 615,650. In operation the operator turns hand knob 12 whereby a flexible band 24, Figs. 2 and 3, rotate the ring 22 of the drum 21 so that a pinion 23 and rack 26 pulls a control rod 27 the slot of which closes a switch 28 of the knife-driving motor. At the required slice-thickness setting a locking plate 29 now grips the rod 27 and locks it and the drum 21 against return movement. The knob 12 may now be turned back to any other slice thickness setting or to zero without stopping the machine. To stop the machine the operator pushes in a push button 31 so that its end 32 deflects the plate 29 so that the friction grip of its hole on the rod 27 ceases whereby 27 is moved back through its rack and pinion when the spring inside the drum 22 can rotate the drum and so restore the settings to initial position. When the locking plate 29 is thus moved to disengaging position it is engaged and held there by a pivoted detent 33 so that the spring has time to rotate back the drum 22 and also to return rod 27 both to their initial positions until the last part of this movement of the control rod 27 causes a striker 35 thereon to engage and free the detent 33 from 29, so that the spring 30, Fig. 4, pulls the locking plate 29 askew to hold the rod 27 again. In another construction the return spring drum is controlled electro-magnetically with a brake shoe as the holding device. The circuit for these arrangements and the driving motor are as in Fig. 8 (not shown).
Patent GB-1254951-A (GB)
Title: Series-shunt type semiconductor chopper
IPC: H03K17/16
Filed: 1969-03-31
Abstract: 1,254,951. Transistor gating circuits; pulse modulation. HITACHI Ltd. 31 March, 1969 [10 April, 1968], No. 16829/69. Headings H3T and H4L. In a series-shunt type field effect transistor chopper circuit the control pulses are such that both transistors are on for a period during switching so as to reduce switching transients. The control pulses 3, 4 may be derived from an astable multivibrator (Fig. 8, not shown) the rise time of the pulses produced and hence the delay before switching the transistors off being longer than the decay time and thus the on delay.
Patent GB-497348-A (GB)
Title: Improvements in paper carrier sheets for tacky rubber, and processes of making same
IPC: D21H17/22
Filed: 1937-06-17
Abstract: 497,348. Impregnated and coated paper; testing the tensile strength of paper. WARREN CO., S. D. June 17, 1937, No. 16839. Convention date, July 16, 1936. [Classes 96 and 140] [Also in Group XIX] A process of making a paper product for use in carrying, separating and protecting tacky rubber comprises deeply impregnating to increase its strength, toughness and split resistance, a strong tough paper web of chemical wood pulp with an impregnating composition consisting essentially of an adhesive such as glue, casein or starch and a flexibility-retaining agent such as glycerine, triethanolamine or a sugar, imparting to both surfaces of the impregnated web by a method involving calendering an increased smoothness, flatness and gloss, and then coating at least one surface of the web with a thin coating of a lacquer composition, the solid content of which contains no or very little nitro-cellulose and consists essentially of one or more tough film-forming substances such as a plasticized organic ester of cellulose, a vinyl or acryl resin. The initial sheet may be formed of only moderately beaten sulphate or kraft pulp, no filler or engine size being used. It weighs about 87 lb. /ream. It is impregnated during or after drying and then weighs 94 lb. /ream. It is then super-calendered if desired, after a surface treatment with a liquid casein or starch composition which may or may not contain pigment, e.g. clay, titanium oxide, blanc fixe. Its weight increases to 99 lb. /ream. The final lacquer composition as described in Specification 493,381, is finally applied. This causes a weight increase of 4-5 lb./ream. Impregnation may be performed by passage under and over rollers in a vat bending the paper, facilitating impregnation. Suitable impregnating compositions are : (1) casein 8 per cent, concentrated ammonia solution 5 per cent, 40 per cent formaldehyde solution 1 per cent, glycerine 2 per cent, and water 88À5 per cent, or (2) modified starch 7 per cent, glycerine À07 per cent, water 92À3 per cent. Suitable compositions for surface coating before calendering are (1) clay 74À7 per cent, titanium oxide 10 per cent, glycerine 1À3 per cent, casein 13À0 per cent, aqueous ammonia 1 per cent or (2) clay 68 per cent, titanium oxide 10 per cent, glycerine 2 per cent, modified starch 20 per cent. Figures are given for the split test of the paper after impregnation and after calendering. These figures are obtained by attaching a strip of paper along part of its length to a backing strip of strong cloth, friction tape or very strong paper, clamping the strip and backing to a horizontal roller leaving a free end of the strip passing over a second horizontal roller to be attached to a pulling device which indicates the grams pull at which the strip split. Specification 380,739 also is referred to.
Patent GB-915083-A (GB)
Title: Improvements relating to bleed control apparatus for compressors
IPC: F04D27/02
Filed: 1960-05-12
Abstract: 915,083. Fluid-pressure servomotor-control systems. GARRETT CORPORATION. May 12, 1960 [May 18, 1959], No. 16862/60. Class 135. [Also in Group XXVI] Bleed control apparatus for a compressor 10 includes a passage 15 incorporating a valve 16 and on-off control means responsive to the ratio of the pressures in two stages of the compressor to control the valve 16 and is characterized in that as the pressure ratio rises the control means close the valve at a lower ratio than that at which they open it as the ratio falls. As the speed of the compressor increases the pressure in a conduit 43 rises causing a plug-lift valve 48 to descend until a needle 45 has retracted sufficiently from a nozzle 42 to balance the pressures acting on diaphragms 36 connected with the needle and the valve. The latter first closes the upper part of a bore 47 forming a vent to atmosphere from a passage 50 so that the latter is pressurized by the conduit 43 to lift a spring-loaded piston 54 which opens a ball-valve 25 to allow air from a conduit 60 to act on a piston 21 and close the valve 16. Continued movement of the valve 48 closes the lower part of the bore 47 to pressurize a passage 51, lift a spring-loaded ball valve 70 and raise a piston 64 carrying a piston valve 65 which is supplied through a passage 71 to maintain the air supply to piston 64 after the valve 70 has closed. The upward movement of the piston 64 lifts a ball valve 68 which allows the piston 54 to descend as soon as the valve 48 clears the lower part of the bore 47 during deceleration of the turbine, the valve 16 thus being re-opened at a higher pressure ratio than that at which it was closed. The valve 68 is held off its seat to prevent re-closure of the valve 16 by the action of the piston valve 65. Temperatureresponsive means 79 in the compressor inlet act through bellows 74, 75 and a lever 80 to adjust the position of the bore 47 in relation to the valve 48. The bellows act in opposition and are rigidly connected by a link 76 so that ambient temperature changes do not affect the lever 80. A screw 84 permits manual adjustment of the position of the bore 47. The diaphragms 36 include a relief valve 40.
Patent GB-594297-A (GB)
Title: Improvements in portable electric flashlights
IPC: F21L4/00
Filed: 1944-09-04
Abstract: 594,297. Electric battery lamps. HYMAN, H. Sept. 4, 1944, No. 16868. Convention date, Sept. 21, 1943. [Class 39 (ii)] A flashlight comprises a casing of plastic material having angularly disposed and integrally connected head and body portions 22 and 20, the lower wall 34 of the former being left substantially intact to reinforce the casing. Two longitudinal parallel spaced ribs 36 on the interior of the body run beneath and on either side of switch 18 and define a channel 38 extending through an opening 40 in the partition 34. Above the channel and integral with the head wall, a tapered projection 42 serves to anchor the finger 146 of the metal strip 144 which latter, through rivet 145 connects the switch, the metallic reflector 82, the ferrule 86 and a flange to the lamp. The lamp circuit is completed through the contact 98, strip 148, battery electrode 68, a battery-spring engaging a ferrule in the base of the flashlight, strip 144 and switch 18. The switch is of the type described in Specification 561,292. The body portion is strengthened by external longitudinal ridges and the flashlight is fitted with a belt hanger 56 secured to the head portion by rivets 58. Specification 594,299 also is referred to. The Specification as open to inspection under Sect. 91, comprises also the subject-matter of Specification 595,175. This subject-matter does not appear in the Specification as accepted.
Patent GB-935646-A (GB)
Title: Improvements in ball-tip writing instruments and balls therefor
Inventor: FEHLING HANS REINHARD
IPC: B43K1/08
Filed: 1959-05-19
Abstract: 935,646. Reservoir pens. I.R.C. Ltd. May 11, 1960 [May 19, 1959], No. 16873/59. Class 146 (3). Also in Group XXII] A writing ball 1 for a ball-point pen has craters 2 of substantially uniform area disposed over its whole surface, which craters are produced by spark-erosion. The total area of the craters is between one-fifth and two-thirds of the total surface area of the ball, each crater having a diameter of from 10 to 70 microns, or between one-hundredth to one-tenth the diameter of the ball, and the ball diameter is from 0.75 to 1.25 mm. The nib portion 4 may be die-cast in tin alloy, as described in Specification 769,296, and the base seat 6 for the ball is subdivided by triangular enlargements 7, the area of each individual seating being at least twenty times that of the individual craters 2. The ink used in the pen will have a viscosity which at the normal temperature of use is suited to the ink trace desired, the number of craters in the writing ball, and the crater coverage of the ball. In three examples, where the percentage crater coverage is 35, 40 and 50, and the average crater diameter in microns is 25, 40 and 50, respectively, the viscosity in poise is 25, 80 and 120, respectively. Each crater is formed by erosion from a single spark in apparatus which may comprise rotating brass rollers 14, 15, Fig. 6, separated by a gap which is smaller than the ball diameter, immersed in paraffin oil 16, and connected in a direct current circuit including a resistance 12 and condenser 13. The balls 1 are fed between insulated scrapers 17, 18, and as each ball approaches the rollers 14, 15, an electrical discharge takes place between the rollers through the ball to produce a crater in the latter. Each ball is ejected away from the rollers by the sparking action and by the pumping action of the rollers, and then descends under gravity, and thus has a series of craters formed therein. In a modified apparatus, Fig. 7A, two spaced metal rollers 14 (not shown) and 15 in a liquid dielectric bath are driven by a motor 25, and the writing balls are supplied to the gap between the rollers from a magazine 29 through a feed pipe 30. A motor 33 drives through gearing 33<SP>1</SP> a disc 31 in the base of the magazine, and pockets in the disc picks up the balls and feed them to the pipe 30. The rollers 14, 15 are inclined to the horizontal so that the writing balls gradually gravitate towards a discharge spout at the other end of the rollers. Nylon filaments between the rollers act as scrapers. Preferably, the rollers are driven at different speeds. Direct current is supplied to the rollers from a circuit comprising a number of condensers of different values each of which can be connected to a resistance of appropriate value by a switch. The feed of the balls along the rollers during the sparking operations may be accomplished by replacing one of the plain rollers by a roller having a helical thread on its periphery. Specifications 564,172, 609,817 and 629,283 also are referred to.
Patent GB-825762-A (GB)
Title: Process for the catalytic production of hydrocyanic acid and hydrogen from mixtures of hydrocarbon and ammonia
IPC: C01C3/02
Filed: 1956-05-31
Abstract: Hydrogen cyanide, together with hydrogen, is produced catalytically without the necessity of frequent burning off of carbon and reforming of catalyst by passing, at a temperature of 900-1300  DEG  C., a gaseous mixture of ammonia and a hydrocarbon, e.g. methane, over a catalyst comprising one or more platinum metals and additionally one or more of magnesium and metals of the third group of the Periodic Table, a substantial proportion of the additional metal being in the form of the nitride.  The catalyst may initially comprise the additional metal in the form of the metal itself, or as a compound thereof, a substantial proportion of which is readily transformed into the nitride during the course of the reaction.  The content of additional metal may be up to 90 atoms per cent, preferably 50-80 atoms per cent. Platinum metals specified are platinum, palladium, rhodium, iridium and ruthenium.  Group III metals specified are aluminium and lanthanum.  Up to 50%, preferably 20-35%, of aluminium may be present.  The catalyst may be coated on the inside of a tube of alumina, on filler bodies, or in the form of unsupported strips, wires or lattices.  The coating may be applied as a solution of chloroplatinic acid containing aluminium chloride or by deposition from the vapour state, e.g. by allowing a flame of platinum carbonyl halide containing aluminium chloride to burn against the surface to be coated.  One or more coatings may be applied.  An intermediate layer of a ruthenium salt may be applied to increase adhesion.  In the example, reaction was carried out at 1250 DEG  C. using 30 mol/hr. of methane.ALSO:A catalyst for the production of hydrogen cyanide together with hydrogen (see Group III) is coated on the inside of a ceramic, especially alumina, tube or on ceramic filler bodies and consists of one or more Pt metals and one or more of Mg and metals of Group 3 of the Periodic Table, a substantial proportion of the latter being in the form of the nitride.  Pt metals specified are Pt, Pd, Rh, Ir and Ru.  Group 3 metals specified are Al, Sc, Y and La.  The coating may be applied as a solution of chloroplatinic acid containing aluminium chloride or by allowing a flame of platinum carbonyl halide containing aluminium chloride to burn against the surface to be coated.  An intermediate layer of a Ru salt may be applied to increase adhesion.
Patent GB-307257-A (GB)
Title: Improvements in and relating to power controlling apparatus for pneumatic despatch systems
IPC: B65G51/28
Filed: 1928-06-11
Abstract: 307,257. Lamson Pneumatic Tube Co., Ltd., and Selleck, L. June 11, 1928. Pneumatic dispatch apparatus. - Power controlling apparatus, for use in pneumatic dispatch systems of the closed circuit type operated by suction, comprises a housing 3, secured to the line terminal near the line outlet door 2, and closed bv a disc valve 10 freely slidable on a rod 8. The rod 8 is attached to a diaphragm 7 which divides the housing into chambers 5, 6. A port 11 connects the chamber 6 with the transmission line 1, and a port 17, closed by a flap valve 18, connects the chamber 5 with the atmosphere. The flap valve 18 is connected to a flap valve 19 which closes a port 20 through which the line 1 communicates with the atmosphere. The valves 18, 19 are opened by a toe 23 on a pivoted arm 22 which carries a float 21, normally lying in a recess in the housing. Where no carrier is on the line the parts are held by suction in the positions shown in the Figure. In operation, when a carrier is inserted, the suction in the line is momentarily broken, and the valve 10 slides down the rod 8 and the float 21 moves across the line 1, the toe 23 opening the valves 18, 19. Air is thus admitted to the chamber 5, forcing down the diaphragm 7 and the rod 8. Where the carrier meets the float 21, forcing it into the recess, the valves 18, 19 close. Air is thus cut off from the chamber 5 which is then exhausted through a port 13 communicating with a suction pipe 12. The diaphragm 7, rod 8 and disc valve 10 then rise, closing the chamber. 3. If the carrier is checked, the line pressure fluctuates and causes the float 21 to oscillate, opening and closing the valves 18, 19 to produce corresponding oscillations of the diaphragm 7 and disc valve 10, thus controlling the suction in the line.
Patent GB-788853-A (GB)
Title: Improvements relating to plug-iní¡í¡ electrical components
Inventor: HALL DONALD LESLIE
IPC: H01J19/66
Filed: 1954-06-09
Abstract: 788,853. Caps and holders for thermionic valves. EDISON SWAN ELECTRIC CO., Ltd. May 11, 1955 [June 9, 1954], No. 16956/54. Class 38 (1).  The pins of a valve are surrounded by grommets of non-hygroscopic resilient insulating material where they emerge from the envelope so that when the valve is inserted in a holder, the grommets are compressed between the holder and valve thereby forming seals round the pins to prevent corona discharge between them at low atmospheric pressures. Fig. 2 shows a valve having a base 4 in which in addition to grommets 10 round the pins 5, grommets 3<SP>1</SP>, 9 are provided round the lead-in wires between the base and envelope 1. The grommets may comprise apertured bosses protruding from a sheet of insulating material. Reference has been directed by the Comptroller to Specification 747,546.