baber/WOPTO huggingface dataset:
Patent GB-764897-A (GB)
Title: Improvements in or relating to record card sensing mechanism
Inventor: BANKS JACK
Filed: 1954-12-03
Abstract: 764,897. Statistical apparatus. BRITISH TABULATING MACHINE CO., Ltd. Dec. 3, 1954, No. 35052/54. Class 106 (1). Card-sensing apparatus comprises an electrically conductive cylindrical contact roll mounted for free rotation coaxially with, and between, a pair of feed rollers, means for making continuous electrical contact with the contact roll, and sensing brushes adapted to make electrical contact with the outer surface of the contact roll through the holes in the card, the contact roll being frictionally driven by a card when fed between the brushes and the roll. Referring to Fig. 1, cards are fed in succession from a magazine, not shown, to a pair of feed rolls 1 and are sensed by brushes 2, after which they are fed by rolls 3 to a stacker, not shown. Shafts 4, 5, 6 and 7 all rotate at the same speed due to gears and idler gears 8. A feed roller 15, Fig. 2, of insulating material is pinned to shaft 6 which is journalled in one wall 14 of the machine. A further shaft 16 is pinned to the roller 15 in axial alignment with the shaft 6. A second feed roll 19 also of insulating material is pinned to the shaft 16. The roller 19 has an extended bushing which fits in a ball-race 18 which is fixed in side wall 17. A gear 20 is also attached to the bushing and to the shaft 16 by a pin 21 of insulating material so that the shaft 16 is insulated from the side wall 17 and gear 20. Two discs 22 are mounted on the shaft 16 and act as bearings for a cylindrical contact roll 23. A slider 25 carries a spring- loaded ball 27 which makes sliding electrical contact with the inner surface of the contact roll. A roll 28 of insulating material is secured to shaft 5 and is grooved to locate sensing brushes 2. The shaft 5 is driven by a gear 29 which meshes with the gear 20. Hence, a card fed from the feed rollers 1 between the brushes 2 and the contact roll 23 is gripped between the roller 28 and the rims of the rollers 15 and 19 and the contact roll 23, whereby the contact roll 23 is rotated by the card. Stops, not shown, limit the movement of arms 10 which carry the roll 28 so that the roll 28 and contact roll 23 are not touching, the gap between them being less than the thickness of a card. The movement of the contact roll is determined solely by frictional forces so that a sensing brush passing through a particular hole in successive cards tends to make contact with a different spot on the contact roll each time. In order to complete the electrical circuit to roll 23, a grooved disc 31 is secured to the shaft 16. A brush 32 which is mounted on an insulating block 33 rests in the groove of the disc 31. In a modification, Fig. 3 (not shown), the rolls 15, 19 are provided with grippers for pressing the card against their rims, the grippers being rendered operative by spring-urged plungers actuated through a cam lever.
Patent GB-1457645-A (GB)
Title: Conveyor belt
IPC: B65G15/36
Filed: 1974-08-09
Abstract: 1457645 Endless conveyers CONTINENTAL GUMMI-WERKE AG 9 Aug 1974 [8 Sept 1973] 35126/74 Heading B8A [Also in Division F2] In a conveyer belt 3 comprising steel wire cables 4 embedded in rubber or synthetic material 3, the ends of opposed cable pairs are inserted into bores in hollow conical steel sleeves 5, the spaces between the ends of the cables 4 and the sleeves 5 are partially filled with a deformable composition 6 such as synthetic resin, and the sleeves 5 are connected together by pins located in bores 25 in overlapping end plates 15.
Patent GB-464811-A (GB)
Title: Improvements in or relating to the construction of seats, mattresses and the like
IPC: A47C7/32
Filed: 1935-12-18
Abstract: 464,811. Spring surfaces. DAVIES, B. S., SORBO, Ltd., AMBROSE, H., and LEN, Ltd. Dec. 18, 1935, No. 35141. Addition to 433,634. [Class 52 (iv)] In a spring surface constructed according to the parent Specification the elastic cord is arranged in two series of stretches a, a<1> which cross and are interlaced.
Patent GB-1343938-A (GB)
Title: Abortifacient device and method
IPC: A61B17/42
Filed: 1971-07-27
Abstract: 1343938 An abortifacient device R R ROBINSON 27 July 1971 [29 Dec 1970] 35167/71 Heading A5R An abortifacient device 10 comprises a non- porous hollow body 12 of elastomeric material having a self-sealing orifice (52) Fig. 4 (not shown) formed from the same elastomeric material as the body, capable of distending in the uterus to cause menstruation and consequent abortion. The orifice (52) is attached to a plunger 24 having a bore 30, the plunger 24 being movable within a tube 20. The plunger 24 communicates with and is projected by movement of a syringe 26 which has a shoulder 34 engaging an abutment 36 of the tube 20 when the abortifacient device 10 has been fully ejected from the tube. The plunger 24 has a boss 42 which engages with a shoulder 44 of the tube 20 to limit the extent of retraction of the plunger 24 with the plunger 24 in the retracted position the tube 20 is inserted in a cervix and the plunger projected to expose the abortifacient device 10 in the uterus. Fluid from the syringe 26 is then ejected into the abortifacient device 10. On retraction of the plunger, the distended abortifacient is left in the uterus, being prevented from retraction into the tube 20 by its size. The body 12 may be covered with an incrustation 60, softenable by heat or contact with uterine liquids, so that the body 12 prefilled with pressurized fluid after having been covered by the incrustation, will expand after insertion in the uterus.
Patent GB-204985-A (GB)
Title: Improvements in and connected with steam generating installations
IPC: F23M20/00
Filed: 1922-12-28
Abstract: 204,985. Babcock & Wilcox, Ltd., (Deutsche Babcock-&-Wilcox Dampfkessel- Werke Akt.-Ges.). Dec. 28, 1922. Regenerators.-A steam boiler is provided with two feed heaters and an air heater, and the flow of the flue gases is so controlled that they may be directed through the heaters either alternately or simultaneously. Feed heaters 2 are arranged at the sides of a tubulous air heater 7 in the path of the gases from a water-tube boiler 1. Separately operated sets of dampers 3, 6 control the passage of the gases through the heaters. When the feed is stopped, the dampers 3 are closed and the gases are drawn by the fan 4 through the air heater alone. The heated air is led beneath the grate through a pipe 9.
Patent GB-410437-A (GB)
Title: Improvements in or relating to reservoir pens
IPC: B43K5/06
Filed: 1933-12-15
Abstract: 410,437. Reservoir pens. NAMIKI MANUFACTURING CO., Ltd., 87, Bishopsgate, London.-(Kabushiki Kaisha Namiki Seisakusho; 1356, Sugamo-Machi, Kitatoyoshima, Tokio.) Dec. 15, 1933, No. 35389. [Class 146 (iii).] In a self-filling reservoir pen of the type in which a piston is movable between stops on a piston rod, and in which the upper stops create a vacuum in the reservoir when the piston is pushed in, while the lower stop is adapted to permit the passage of ink or air, the piston is caused to tilt between the stops on the outward stroke to permit the passage of air. The pen comprises a nib section b, barrel a, and operating knob c, to which is connected the piston rod e carrying the piston g between stops h, j. The piston is in the form of a ring fitting loosely on an extension f of the rod e and provided on its upper surface with two projections o. On the outward stroke the piston is pressed against the stop by the friction of its contact with a rubber lining d, and rocks sideways on the projections o, providing a passage for air. On the inward stroke the piston seats against the stop h, closing all passages and creating a vacuum behind the piston, until it passes the limit of the lining d, when the vacuum is destroyed and ink is sucked in. The stop is provided with a conical surface k which is adapted to fit into and close the ink passage l when the knob c is screwed home into the barrel.
Patent GB-812829-A (GB)
Title: Method of generating pulse groups and multiples thereof
Inventor: KASSEL MARTIN
Filed: 1955-12-09
Abstract: 812,829. Digital electric calculating-apparatus. KIENZLE APPARATE G.m.b.H. Dec. 9, 1955, No. 35417/55. Class 106 (1). A method of generating groups of pulses consists in transmitting at least one sawtooth pulse to a multi-anode deflector tube and supplying the pulses generated at its anodes to a collector bar from either end of which groups of pulses may be obtained. The method is described with regard to an example of multiplication in an electrical calculating machine. For each order of the multiplicand a deflector tube Rd<SP>1</SP>, Rd<SP>2</SP> is provided having its anodes connected to separate points in a chain of normally-closed switches described as a collector bar. By depression of a selected key any one of the switches in a collector bar may be opened to represent the multiplicand digit in that order. As shown, digit " four." is set up in the tens order Md<SP>2</SP> and digit "nine" in the units order Md<SP>1</SP>. The multiplier digits are entered one at a time on a key bank, the multiplier collector bar Mr being shown registering digit " two ". The depression of a multiplier key activates a one-shot multivibrator M1, causing it to deliver a sawtooth waveform to the deflector plates of the multiplier deflector tube Rr. This causes the beam of the tube to be scanned across all the anodes and gives rise to a succession of pulses in the anode leads. The first group of these pulses is available at the left-hand end of the collector bar, but after the open switch contact has been passed subsequent pulses are delivered from the right-hand end of the collector bar to a one-shot multivibrator M3. For each pulse received this device delivers a sawtooth waveform which, preferably, is applied to the multiplicand tubes in succession so as to avoid overlap of entry pulses and carry-over pulses in the final accumulator Z1... Z12 which may consist of decimal counting tubes or flip-flops, transistors; ferrite elements, relays, &c. Thus, from the right-hand end of each collector bar Md<SP>1</SP>, Md<SP>2</SP>, &c., groups of pulses are delivered, the number of groups corresponding to the multiplier digit and the number of pulses in each group corresponding to the multiplicand digit. When the multiplier key is released and the corresponding contact of the collector bar Mr is closed again, a signal is delivered via a oneshot multivibrator M4 to a series of tubes S1, S2, &c. which move only one step for each pulse received. Thus, the position of the beam in each tube moves forward one step to mark the next one of the output terminals A ... K, A<SP>1</SP> ... K<SP>1</SP>, and so control the groups of diode gates forming the entry circuits to the accumulator Z1 . . . Z12 to effect a one-denomination shift preparatory to the arrival of more groups of pulses initiated by the next depression of a multiplier key. Another method of avoiding overlap of entry pulses and carry pulses by alternate operation of odd-number orders and even-number orders, is suggested.
Patent GB-1301136-A (GB)
Title: Logic circuit
Inventor: DRANGEID KARSTEN E
IPC: H03K19/0952
Filed: 1970-07-22
Abstract: 1301136 Transistor logic circuits INTERNATIONAL BUSINESS MACHINES CORP 22 July 1970 [4 Aug 1969] 35471/70 Heading H3T A logic circuit such as a NOR gate, Fig. 4, has a constant current from 54 switched between a first path leading to a logical network 51, 52' 53 and a second path 60, in dependence upon the inputs A, B, C, the second path being connected to a second constant current device 56 across which an output circuit 62, 63 is connected and carries that current in excess of the current carrying capacity of 56. The FET's shown are Schottky barrier FET's which are held off at zero gate bias by their contact voltage and which provide current flow from gate to source when the polarity is appropriate; and Schottky diodes 58 give level shift. The second current path 60 may have parallel paths 59 giving fan-out to other output circuits. When ABC are all low, the current from FET 54 flows through FET 55 gate to 61 and adds to the current caused to flow thereby in the drain-source path of the same FET 55. This is arranged to exceed the current capacity of FET 56, which is normally fully conducting due to the standing current in FET 55, by a sufficient amount to provide the required output current drive to FET 57 plus a current surplus to charge circuit capacitances during the initial change to the all ABC low condition. A one or more of the inputs ABC goes high, the corresponding FET 51, 52, 53 initially carries more current than FET 54 can supply, thus charging circuit capacitances, and then carries the current from FET 54 only; the FET 55 now being non-conductive, and the output D following to a low state.
Patent GB-1275109-A (GB)
Title: Stabilising compositions for chlorinated paraffins
IPC: C07C17/42
Filed: 1969-07-15
Abstract: 1275109 Stabilization of chlorinated paraffins PRODUITS CHIMIQUES PECHINEYSAINT-GOBAIN 15 July 1969 [15 July 1968] 35565/69 Heading C2C [Also in Division C5] Chlorinated paraffins having from 8 to 27 carbon atoms and a chlorine content of from 20 to 75% are stabilized by mixing with an epoxidized compound containing at least 8 carbon atoms and a magnesium compound, the magnesium compound being present in a quantity to give from 0À001 to 10% magnesium with respect to the weight of epoxidized compound. The magnesium compound may be an oxide, hydroxide, oxychloride, carbonate, chloride, nitrate, phosphate, acetate, stearate, naphthenate, benzoate, phthalate, tartrate, lactate, maleate, itaconate, fumarate, chlorendate or alcoholate, or an organo-magnesium compound. The epoxidized compound may be derived from a C 12-22  acid or an ester thereof with a mono- or poly-alcohol, such as octyl epoxystearate or the epoxidized vegetable oils.
Patent GB-1153369-A (GB)
Title: Improvements in Hair Curlers.
Inventor: WHITMARSH HERBERT FREDERICK
IPC: A45D2/36
Filed: 1967-08-03
Abstract: 1,153,369. Hair rollers. INITIAL PLASTICS Ltd. 28 May, 1968 [3 Aug., 1967], No. 35653/67. Heading A4V. A hair roller comprises a solid core 1 of heat resistant plastics material and a clipon outer shell 2 of resilient plastics material. The core, which may be made of polythene, is preferably cylindrical and waisted at its middle portion 3, with rows of teeth 4 at 90 degree intervals around its surface. The shell may be of horseshoe shaped section, and has an inwardly extending flange 6 at each end for engagement in a corresponding groove 5 in the core. In use the core is heated by immersion in boiling water; a lock of hair is then wrapped around its surface and the shell clipped over the core to secure the hair.
Patent GB-619353-A (GB)
Title: Liquid-fuel combustion chamber
IPC: F23R3/32
Filed: 1946-12-04
Abstract: 619,353. Generating combustion products under pressure. ARMSTRONG SIDDELEY MOTORS, Ltd., and ALLEN, S. Dec. 4, 1946, No. 35869. [Class 51 (i)] Fuel and primary combustion air are admitted at the ends 18 of J-shaped tubes 19 which are surrounded by the burning gases issuing from the backwardly turned ends 20. The quantity of primary air is regulated in agreement with the fuel supply by means of a disc valve 25. Secondary air passes into the chamber 12, containing the tubes 19, through annular openings 34, 35 and, in the construction shown in end view in Fig. 4, through fish-tail burner-like tubes 39 with their down-stream ends reduced to diametral slots 40. The rest of the compressor delivery passes through the annular space 14 to mix with the products of completed combustion. The primary air valve 25 may be coupled with the engine throttle with means for giving an altitude correction. Specifications 577,865 and 603,485 are referred to.
Patent GB-1506319-A (GB)
Title: Control electrode for high voltage electrical apparatus
IPC: H01H33/24
Filed: 1975-09-01
Abstract: 1506319 Control electrodes for HV switches SIEMENS AG 1 Sept 1975 [3 Sept 1974] 35976/75 Heading H1N [Also in Division C3] A load disconnection switch incorporates control electrodes which comprise bodies made of electrically conductive foamed material and attachment means for attaching the bodies to apart of the switch. The switch (Figs. 7 and 8, not shown) has a pair of control electrodes located on either side of and connected to each of the contacts and similar in construction to electrode 10 wherein a pad 9 of electrically conductive foam fills hollow member 4 made of insulating material, e.g. polyethylene and having holes 11 near edge 8 around opening 7 for screws 12 which are used to support holders 13 connected to a support bracket 14.
Patent GB-434112-A (GB)
Title: A process for the manufacture of solid, opaque or transparent condensation products
IPC: C08G14/08
Filed: 1933-12-21
Abstract: Solid, opaque, or transparent condensation products are made by reacting together urea, thio-urea or their derivatives and an aldehyde such as formaldehyde in the presence of a preferably monohydric phenolic body of low melting-point which acts as an auto-catalyst, the molecular proportions of the reacting substances being so balanced that a gradual increase of hydrogen ion concentration is developed from the neutral solution. Preferably 2,5 to 3,5 mols. of formaldehyde are used to each mol. of urea, with 0,15 to 0,5 mol. of ortho- or para-cresol. In an example 33 parts of formaldehyde (calculated on the 36 per cent solid content of commercial 40 per cent formaldehyde solution) is nearly neutralized to a pH value of between 7 and 8 by addition of alkali such as caustic soda.  12,5 parts of urea and 2 parts of thio-urea mixed with 0,08 parts of paracresol are added and the neutral solution is condensed by heating at a low temperature under reflux until the reaction subsides.  After cooling and filtering the mixture is evaporated at elevated temperature under partial vacuum to remove the water.  The viscous product is then poured into moulds and dried at 70--100 DEG  C. Decolourizing agents such as charcoal, softeners such as sucrose and glycerine and fillers such as silica, metal dust, wood flour and paper pulp may be added.  Specifications 326,070 and 328,938, [both in Class 2 (iii)], are referred to.
Patent GB-989248-A (GB)
Title: Improvements in and relating to fasteners
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16C11/06
Filed: 1962-09-21
Abstract: 989,248. Spring clips; ball joints. F. T. PRODUCTS Ltd. Sept. 20, 1963 [Sept. 21, 1962], No. 36040/62. Headings E2B and E2F. [Also in Division F2] A fastener 10 is formed from a single strip of material in the shape of a hollow cylinder split so as to have an open mouth 16 stepped between narrow and wide portions 16, 19 and having at least one projection 20 extending away from one end of the cylinder towards its axis. The fastener is sheared to allow tongues 22, 23 to be bent out. The mouth portions 16, 19 may be offset circumferentially. When used to secure the ball 29 of a ball-ended lever 26 in a bore 31 in a rod 28, the ball 29 is inserted through a circular recess 32 and urged by a plunger 33 against the stopped end of the bore, while the fastener 10 is snap-engaged round the rod 26 with lugs 20, 21 engaging a groove 35 to prevent axial movement.
Patent GB-1368403-A (GB)
Title: Container and process for 2-dimensional quantitative immunoelectro phoresis
IPC: B01L3/00
Filed: 1972-08-03
Abstract: 1368403 Gel electro-phoresis BIOTESTSERUM-INSTITUT GmbH 3 Aug 1972 [12 Aug 1971] 36238/72 Heading C7B Gel electro-phoresis apparatus comprises a transparent cell provided with a lid and is divided into a larger and smaller chamber by a removable partition. The smaller chamber contains a separating gel and the larger contains an antibody gel. In use the partition is removed, serum is introduced into a hole in the separating gel. The serum is electro-phoretically separated. The gap between the separating gel and the antibody gel is filled with liquid separating gel serum is further electro-phoretically separated to obtain a precipitate in the liquid gel. The antigenic activity of the serum can thus be assayed. The cell may be polyethylene, polypropylene, polystyrene or polyvinylchloride. An agarose gel may be used.
Patent GB-791125-A (GB)
Title: Process for the manufacture of dihydroxy-propane compounds containing mercury
IPC: C07F3/10
Filed: 1954-12-15
Abstract: The process of the parent Specification is modified by adding a mercuric salt to an ether of allyl alcohol with a carbohydrate containing protected hydroxyl groups, and after the addition liberating the protected hydroxyl groups in known manner, and reacting the mercury containing product with a compound HY where Y represents the residue of theophylline or a carboxyalkylmercapto or a polyhydroxyalkylmercapto group.  The hydroxyl groups, especially those bound to the carbon atom or atoms vicinal to the allyl ether linkage, are protected by being in the form of esters or ethers, for example as part of an acetal or ketal grouping as in 3-allyl-1 : 2-isopropylidenepropane triol, 3-allyl-1 : 2 : 4 : 5-diisopropylidene - xylitol, 3 - allyl - 1 : 2 : 5 : 6 - diisopropylidene-glucose and penta-acetyl-3-allyl mannitol. Conventional methods of liberating the protected groups include removal of isopropylidene residues by heating with aqueous acetic acid, and acyl residues by treatment with alcoholic alkalis.  In Example (1) mercuric acetate dissolved in methanol is added to a methanol solution of 4-allyloxymethyl-2 : 2-dimethyl-1 : 3-dioxolane to give 4-(31-acetoxy-mercuri - 21 - methoxypropoxymethyl) - 2 : 2-dimethyl-1 : 3-dioxolane, which is converted to 1 - (21 - methoxy - 31 - acetoxymercuripropyl)-glycero by treatment with acetic acid.  To this latter compound l-thiosorbitol is added to give 1 - s - [31 - (211 : 311 - dihydroxypropoxy) - 21-methoxypropyl - mercuri] - l - thiosorbitol of formula: <FORM:0791125/IV (b)/1> Other examples describe the preparation of (2) 1 - s - [31 - (211 : 311 - dihydroxypropoxy) - 21 - hydroxy - mercuripropyl] - l - thiosorbitol; (3) 3 - [21 - hydroxy - 31 - (D - gluco - pentahydroxyhexyl - mercapto - mercuri) - propyl]-D - xylitol; (4) 3 - [21 - hydroxy - 31 - (D - glucopentahydroxyhexyl - mercapto - mercuri) - propyl - D - glucose; (5) 3 - [21 - hydroxy - 31 - (D-gluco - pentahydroxyhexyl - mercaptomercuri)-propyl]-D-mannitol; (6) the compound of formula: <FORM:0791125/IV (b)/2> and (7) the addition product of mercurized 3 - allyl - 1 : 2 : 5 : 6 - diisopropylidene - D - mannitol and theophylline of formula: <FORM:0791125/IV (b)/3> 3 - Allyl - 1 : 2 : 4 : 5 - diisopropylidene - xylitol (used as a starting material in Example 3) may be prepared by reacting 1 : 2 : 4 : 5-diisopropylidene-xylitol dissolved in aqueous acetone with an acetone solution of allyl bromide in the presence of sodium hydroxide.  After removal of acetone the residue is diluted with water, neutralized with aqueous sulphuric acid and extracted with ether.  The ether solution is dried over anhydrous potassium carbonate and evaporated to dryness.  Penta - acetyl - 3 - allyl mannitol is prepared by reacting 3-allyl-mannitol with acetic anhydride and pyridine.