baber/WOPTO huggingface dataset:
Patent GB-936770-A (GB)
Title: Improvements relating to halogen-containing hydrocarbon polymers
IPC: C08F259/00
Filed: 1961-09-29
Abstract: Halogen-containing hydrocarbon polymers whose thermal decomposition is at least partially attributable to the loss of halogen acid, are stabilized by adding at least one olefinically unsaturated terpene or an oxygen, hydrocarbon or halogen derivative of such a terpene, at least one thio compound having the formula R-S-H or R-S-S-R1 where R and R1 are the same or different and are alkyl, hydroxyalkyl, thioalkyl, carboalkoxyalkyl, carboxyalkyl, aralkyl, aryl, alkaryl, haloaryl, thioaryl, thioalkaryl, carboalkoxyaryl, carboxyaryl, cycloalkyl or thienyl groups, and a small amount of a finely dispersed zinc compound which may be an organometallic compound of zinc having the formula R112Zn where R11 is an aryl group or an alkyl group having 1 to 18 carbon atoms, or a zinc derivative of a compound having at least one active hydrogen atom and an ionization constant of at least 1 X 10-6, or zinc or zinc oxide.  The preferred halogen-containing polymers are those in which the halogen is fluorine or chlorine, e.g. polyvinyl chloride, polyvinyl fluoride, polyvinyl chloride-vinylidene chloride copolymers.  The term "olefinically unsaturated terpene" includes both the naturally-occurring and synthetically prepared terpenes and mixtures of tepenes; these have the general formula (C5H8)x where x is 2 to 6 and may be monocyclic, bicyclic, tricyclic or polycyclic.  The preferred terpenes are the bicyclic ones and their oxygen, hydrocarbon and halogen derivatives, wherein one ring of the bicyclic terpene contains no more than four carbon atoms and the second ring carries at least one exoalkylene group.  Long lists of terpene compounds are given, the most preferred being b -caryophyllene, b -pinene, pinocarveol and nopadiene.  The preferred thio compounds are the organic thiols R-S-H where R is an alkyl group containing at least 8 carbon atoms, e.g. decanethiol, dodecanethiol and octadecanethiol.  Lists of thiols and disulphides are given. Preferably concentrations of at least 1% of the terpene compound and at least 1% of the thio compound, based on the weight of the additives plus polymer, are used.  The preferred zinc compounds are the carboxylic acid salts, the mercaptides, the hydroxide, the alkoxides or aryloxides and the organometallic compounds having the formulae <FORM:0936770/IV(a)/1> R112S2Zn and Zn(OR111)2 where R11 is as above and R111 equals R11 or is hydrogen.  Lists of zinc compounds are given and the zinc compound may be used in such an amount that the final composition contains 3 to 50 parts by weight of zinc per million parts by weight of the polymer.  Shaped structures of the stabilized composition are formed by blending a mixture of the polymer, terpene compound, thio compound and zinc compound until a homogeneous single phase composition results and then forming the composition into a shaped structure and cooking.  Fillers, dyes, plasticizers, pigments and delusterants may be added.  Many examples of stabilizer compositions are given.  Specifications 899,830 and 901,746 are referred to.
Patent GB-603477-A (GB)
Title: Device for use when slicing foodstuffs
IPC: B26B29/06
Filed: 1945-12-28
Abstract: 603,477. Cutting slices in succession. BUTTERFILL, J. C. Dec. 28, 1945, No. 35108. Addition to 556,260. [Class 28(ii)] The slicing device claimed in the parent Specification is modified to provide only one slit 3 in the cage 1, and hinged doors 8 at the ends of the cage. The door at the slit end may be provided with a flange to cover the slit and catches are provided to hold both doors closed.
Patent GB-818802-A (GB)
Title: Improvements in or relating to refrigeration systems
IPC: F25B40/00
Filed: 1956-11-16
Abstract: 818,802. Refrigerating; tubular heat exchange elements. DUNHAM-BUSH, Inc. Nov. 16, 1956 [Nov. 23, 1955], No. 35150/56. Classes 29 and 64(3) To ensure an adequate pressure on the high side of a compression system at low ambient temperatures, a valve 12 responsive to condenser pressure throttles the liquid line and part of the liquid refrigerant is diverted through a heat exchanger 6 in which it is heated by hot gas from the compressor. There is a restriction in heat exchanger 6 to prevent liquid flow therethrough when valve 12 is open. Valve 12 can be adjusted manually. The by-pass can be arranged upstream or downstream of the receiver 16. Heat exchangers. Each pass of the heat exchanger 6 consists of three concentric tubes 34, 36, 38 with corrugated fins 40, 44 clamped between them in the annular fluid channels. U.S.A. Specifications 2,611,585 and 2,611,587 are referred to.
Patent GB-349475-A (GB)
Title: Improvements in or relating to fuels for internal combustion engines
IPC: C10L1/30
Filed: 1929-11-18
Abstract: Motor fuels are rendered antiknocking by adding thereto a solid or liquid carbon compound in which at least one carbon atom is bivalent. Such compounds comprise (1) organo-metallo-cyanide derivatives, including the corresponding isocyanides, thiocyanates, isothiocyanates, cyanates, and isocyanates, which compounds are less volatile than the fuel, (2) organic isonitriles, and (3) compounds of the type <FORM:0349475/III/1> for example di-iodo-acetylidene, cyanogen, iodide, and the tautomeric form of ketenes <FORM:0349475/III/2> Suitable compounds of the class (1) comprise, (a) esters of metallo-cyanic acids such as alkyl or aryl esters of ferrocyanic acid or of the corresponding nickel, lead, cobalt, thallium, osmium, molybdenum, chromium, vanadium or uranium cyanic acids, (b) salts of such metallocyanic acids with organic bases, including hetero- and carbocylic bases such as aniline or polynuclear bases, (c) organic delivatives of cyanogen complexes of the type -- M(CN)6 in which the metal is one of those specified in (a), for example organic nitro prussides or carboxyl cyanides, (d) cyanides of metalloids such as selenium and tellurium, or organic derivatives containing the -- SeCN group. For example, a motor fuel consisting of kerosene, "cracked" gasoline, benzine, alcohol or mixtures of these, is mixed with a small amount of (a) tetraamyl or -phenyl ferrocyanide, or (b) tetra-anilino nickelocyanide or (d) dicyandiselenide, or phenyl selenocyanate, or its substitution derivatives, e.g. amino phenyl selenocyanate, or the corresponding diseleno-compounds, e.g. <FORM:0349475/III/3> where X is an organic or inorganic radical, or (e) isobutyl isonitrile.  A solvent for such compounds, miscible with the motor fuel may be added e.g. amyl or isopropyl alcohol or cyclohexanol.  Reference has been directed by the Comptroller to Specification 308,610, [Class 91, Oils &c.].
Patent GB-1055009-A (GB)
Title: A process for etching printed circuits
IPC: C23F1/18
Filed: 1965-08-17
Abstract: 1,055,009. Etching. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. Aug. 17, 1965 [Aug. 22, 1964], No. 35244/65. Heading B6J. Printed circuits are etched with hydrogen peroxide containing mineral acid, preferably sulphuric acid, solutions containing urea or urea derivatives. Ferric chloride or other heavy metal salts may be added.
Patent GB-1197592-A (GB)
Title: Improvements in or relating to the Manufacture of Roofing Slates
Inventor: LOMBOS LAZLO
IPC: B28D1/32
Filed: 1967-08-01
Abstract: 1,197,592. Working stone. ROBERTSON RESEARCH CO. Ltd. AND DINORWIC SLATE QUARRIES CO. Ltd. 28 Oct., 1968 [1 Aug., 1967], No. 35259/67. Heading B5E. A. slate chamfering machine comprises a feeding means for effecting relative movement between a rectangular slate 2 and a rotatable cutting tool 6a in a direction substantially parallel to the axis of rotation of the cutting tool whereby the whole length of an edge of the slate is roughly chamfered. The feeding means is in the form of a conveyer belt 1 passing over rollers 60 and, in co-operation with spring loaded wheels 24, 65 mounted above the belt, causes the slate to be moved past the cutting tool 6a which is hydraulically driven so as to chamfer its edge 2a. Upon the slate passing the tool 6a, a switch is actuated causing a pneumatically ram 14, 15, to move a plate 16 into contact with the slate and thereby bring the opposite edge 2b of the slate into position to be acted upon by a second cutting tool 6b ; the slate is fed past the tool 6b in the same manner as described above. After the second edge 2b has been cut, the slate reaches a device 7 which turns the slate through 90 degrees. The device includes a suction cup 33, Fig. 4, adapted to be pressed into contact with the slate by means of a pneumatically-actuated lever mechanism 48, 49, a suction then being produced in the cup so as to retain the slate thereon while it is rotated, via a connecting link engaging with a pin 58. The remaining two edges 2c, 2d of the plate are chambered by cutters 6c, 6d respectively, the feeding of the slate past these cutters being as described above. In an alternative embodiment, the single conveyer belt is replaced by two belts at right angles to one another, each belt being associated with two cutting tools so that the slate does not have to be turned through 90 degrees after the first two edges are chamfered.
Patent GB-155278-A (GB)
Title: Improvements in keyless padlocks
IPC: E05B37/02
Filed: 1920-12-15
Abstract: 155,278. Hewitt, T. June 20, 1917, [Convention date]. Locks, permutation; padlocks.-A permutation padlock has a number of equal, concentricallymounted and individually operable disks 18, 19, 20, each of which has on its periphery a series of numbers, a notch 21 and a radially projecting pin 22. Inside the casing, which is made of pressed or cast metal, in two halves riveted together, is a lever 23, pivoted at 24, and having a projection 30 and a notch 25. The disks partially project through a slot in the casing and are turned until certain numbers appear in the slot 15 of the wall 14, when all the notches 21 are opposite the projection 30. The lever 23 can then be pressed in by the headed stud 32, to disengage the hook 26 of the shackle 27 from, or engage it with, the notch 25. The pins 22 prevent the disks from being rotated so that their notches appear at the cut-away part of the casing, where they could be alined. It is stated that the mechanism is applicable to other kinds of permutation locks.
Patent GB-508372-A (GB)
Title: Improvements in or relating to adsorption apparatus
IPC: F24F3/14
Filed: 1937-12-22
Abstract: 508,372. Gas - adsorption apparatus. SADLER, A. L. (Pittsburgh Lectrodryer Corporation) Dec. 22, 1937, No. 35432. [Class 1 (i)] Adsorption apparatus for the treatment of gases comprises a bed of adsorbent subdivided into sectors, and a rotary cylindrical circumferentially ported valve for supplying separate streams of treatment and reactivation fluid to different sectors in predetermined sequence, the streams passing through the bed in opposite directions. A stream of drying or cooling fluid may also be passed through the bed after reactivation and may subsequently be mixed with the reactivation fluid of another sector. The drying or cooling fluid may be a part of the treatment fluid, or it may be of separate origin. The cylindrical valve may be divided into upper and lower parts by a partition t. The upper part is divided into three sectors w, x, y, the two former being open at the top to inlet h<1> and the last communicating through a lateral port with chamber e and outlet m. The lower part is divided into two sectors x<1>, y<1> communicating with outlet j and inlet k respectively. Treatment fluid passes from inlet h<1> through valve sector x adsorbent beds b, valve sector x<1> to outlet j. Reactivation fluid entering at k passes through other sectors of the bed in the opposite direction to outlet m. A part of the treatment fluid is byepassed through valve sector w to the sector of adsorbent to be cooled and dried, and then mingles in valve sector y<1> with the reactivation fluid and passes again through the adsorbent.
Patent GB-745033-A (GB)
Title: Vehicle window regulators
Inventor: HARRIS RONALD
IPC: E05F11/46
Filed: 1953-12-21
Abstract: 745,033. Window operating apparatus. WILMOT-BREEDEN, Ltd. Nov. 19, 1954 [Dec. 21, 1953], No. 35455/53. Class 20(3). A regulator for a vertically slidable vehicle window comprises a parallel-motion linkage 3, 4 pivoted at one end to an attachment piece 5 and at the other end to a member 6 which carries rollers 7 to support the lower edge of the window, and a balancing spring 12 connected between an extension of the arm 3 and one of a series of notches 13 formed in the attachment piece 5, a friction washer 8 being incorporated at each, or, as shown, at one of the pivotal connection of the arms 3, 4 with the attachment piece 5. As shown a spring washer 10 is placed on the outer face of the attachment piece and is adjustably secured by nuts 11 which engage a screw threaded part of a pivot pin 9. Raising and lowering of the window is effected by direct manipulation of a finger piece (not shown), attached to the window.
Patent GB-628271-A (GB)
Title: Improvements in or relating to timing devices using thermionic valves
IPC: H03K17/288
Filed: 1946-11-29
Abstract: 628,271. X-ray apparatus. STANDARD TELEPHONES & CABLES, Ltd., and MOORE, T. Nov. 29, 1946, No. 35466. [Class 98 (i)] [Also in Group XL (c)] The Figures show the use of a timing device to determine the exposure time of an X-ray tube and to ensure that if, due to a rise in the supply potential the emission of the X-ray tube increases, the period of operation will be correspondingly reduced. When the pushbutton S is removed from the hook switch H, the filament of the X-ray tube and the cathode of valve V1 are connected to the A.C. supply, and after a brief interval to allow their heating up, the push-button is pressed and D.C. is applied across the valve V1 via the rectifier SR1 and smoothing circuit C2, R2. Relay A operates closing contact a1 which causes relay B to operate, which first closes contact b1 and shortly afterwards closes b2, thus applying A.C. across the X-ray tube and starting the emission of X-rays. At the same time the voltage across resistor R11, which is proportional to the current passed by the X-ray tube, is applied across transformer T1, and after rectification by the rectifier SR2 and smoothing by network C3, R3, commences to charge capacitor C1 negatively via resistor R4 and the closed contact a2 (contact a3 now being opened) until the control grid of V1 becomes sufficiently negative to stop the flow of anode current in the valve, thus releasing relay A. Contact a1 thereupon opens, thus releasing relay B and cutting off the supply to the X-ray tube, at the same time contact a3 is made and capacitor C1 is discharged. Push-button S is now released and the heater circuits are disconnected by the hook-switch H. The setting of resisters R1 and R4 enables the duration of the timing period to be adjusted. The factors which tend to make the time period vary directly as the supply potential, e.g. the increase in anode potential of valve V1 &c. are compensated by (a) deriving the starting bias for the control grid of valve V1 from the potentiometer R7, R9 across the H.T. supply ; (b) deriving the screen grid voltage of the valve similarly, from a potentiometer R8, R10 and neon tube V2, and in a modification, Fig. 1 (not shown) (c) deriving the charging voltage for capacitor C1 from across the A.C. supply XY with subsequent rectification.
Patent GB-1566261-A (GB)
Title: 1,3 - diaza - bicyclo(o,2,0)heptane derivatives
IPC: C07D205/085
Filed: 1976-09-03
Abstract: The novel compounds of the general formula I, in which R<2> and R<4> have the meaning given in Claim 1, are valuable antibiotics. In order to prepare them, a compound of the general formula VIII is reacted with an acyl halide of the formula R<4>-Hal. <IMAGE>
Patent GB-801489-A (GB)
Title: Improvements in and relating to apparatus for detecting the presence of foreign bodies in the bottom of transparent vessels
IPC: G01N33/00
Filed: 1955-12-09
Abstract: 801,489. Photo-etectric detection of foreign bodies in transparent vessels. U. D. ENGINEERING CO., Ltd., and STOATE, N. P. Dec. 6, 1956 [Dec. 9, 1955], No. 35516/55. Class 40 (3). Pulsating light is passed through the transparent bottoms of vessels and detects distortions in the light caused by transparent foreign bodies. Light from a source 3 is focussed on to the bottom of a bottle 1 and, after being chopped by the rotating disc 4a and passing the rotating seaming mask 4b, is detected at a photo-cell 6. The imposed pulsations are amplified at 8 and rejected at the circuit 11 which is sharply turned at the frequency of the source 3. Deflections caused by 'transparent bodies are allowed to pass to a gasfilled relay 14 biased by a resistor 15 to fire when triggered by the grid 13. The circuit has a high-tension input 16 and the output 17 controls a rejecting &c. mechanism. Alternatively a cathode-ray tube may replace the light source, the pulsating being produced by modulating the cathode rate in known manner and the seaming effect by electromagnets or other known means. The apparatus may scan vessels of various dimensions by the use of different lenses mounted in a rotatable turret. Instead of the grid 2 the bottle may be held around its throat or sides and a fixed mask may be inserted beneath its bottom.
Patent GB-791385-A (GB)
Title: Improvements in process for preparing oxides of alkali metals and alkaline earth metals
IPC: C01D1/02
Filed: 1955-12-12
Abstract: A process for preparing the oxides, peroxides, or superoxides of the alkali or alkaline earth metals comprises preparing a dilute amalgam containing up to 1 per cent of the metal, forming a pool of concentrated amalgam containing more than 5 per cent of the metal, introducing the dilute amalgam into the pool of concentrated amalgam in amount to form a pool of composite third amalgam in which the concentration of the metal is greater than the concentration of the metal in the amalgam having the maximum melting point for amalgams of the metal, introducing oxygen or a free oxygen-containing gas into the third amalgam to oxidize the metal, distilling mercury from the third amalgam at a rate corresponding to the rate of oxidation of the metal, to maintain the concentration of the metal greater than the concentration in the maximum melting point amalgam, and recovering the oxidic compound.  The dilute amalgam may be showered into the vapour space of a still under reduced pressure from a vacuum pump, which pump may be employed to compress the distilled mercury vapour. The condensed mercury vapour may be passed in heat exchange with the dilute amalgam passing to the still.  Air, or oxygen, may be passed into the still at, or just below, the surface of the pool of amalgam. The oxidic compound may be skimmed from the surface of the amalgam, and the condensed mercury may be returned for further use.  The process is particularly directed to the preparation of oxides and peroxides of lithium, sodium, potassium, caesium, and rubidium, and the superoxides of potassium, caesium, and rubidium.  For alkaline earth metals the dilute amalgam may be produced by passing an alkali metal amalgam in countercurrent to an alkaline earth metal compound in aqueous, or non-aqueous, medium.  The concentrated amalgam may be produced by introducing the metal in an inverted cup under mercury, or by distillation of dilute amalgams.  In the example, a sodium amalgam, obtained by electrolysis, is added to concentrated amalgam and distilled at 450 DEG  C. and 50 mm. Hg.
Patent GB-948514-A (GB)
Title: Paper dispenser
Inventor: SUNLEY WILLIAM HENRY PRACY
IPC: A47K10/38
Filed: 1961-10-03
Abstract: 948,514. Paper dispensers. P. Q. PLASTICS Ltd. Aug. 5, 1962 [Oct. 3, 1961; June 5, 1962], Nos. 35649/61 and 21754/62. Heading B8P. [Also in Division A4] A dispenser for a toilet roll or interleaved toilet pack, having a paper-receiving trough 3, is closed by a lid 7 slidably engaged with a mounting plate 1. Flanges 6 on the lid engage guide lugs 5 on the mounting plate. The dispenser may be made of moulded high impact polystyrene. A paper delivery slot is formed between members 3 and 7.
Patent GB-1329956-A (GB)
Title: Tobacco smoke filters
IPC: A24D3/14
Filed: 1971-07-22
Abstract: 1329956 Tobacco-smoke filters F J BURRUS & CIE 29 July 1971 [14 Aug 1970] 35761/71 Heading A2C A filter comprises at least three different filtering agents, at least one of which agents is primarily intended to remove smoke components with a particle diameter of more than 0.1 micron, and at least one other of which agents is a polar adsorption agent intended to remove chemically polar smoke components with a particle diameter of less than 0.1 micron. The specified polar adsorption agent is porous magnesium silicate of 0.1-2.0 mm particle size, and the agent for removing particles of more than 0.1 micron diameter may be a wad of cellulose acetate or crepe paper. As shown in Fig. 1, wads 1, 3 are formed of cellulose acetate fibre or crepe paper as is also a carrier material 6 on which mixed magnesium silicate particles 4 and activated carbon particles 5 are distributed. In Fig. 2, the particles 4, 5 on separate carriers are separated by a part 8. In Fig. 3, the particles 4, 5 are separated in the manner shown, and may be loose or bonded together at their contact points.
Patent GB-1394176-A (GB)
Title: Hoists
IPC: B66B5/16
Filed: 1971-08-10
Abstract: 1394176 Safety devices for building hoists MARTIN HOIST & ENG CO Ltd 2 Aug 1972 [10 Aug 1971] 37583/71 Headings B8L B8H and B8B A hoist comprises a load carrier 8 having arrester means 11 operable when the upward force applied to a lifting rope 3 falls below a predetermined value, the rope 3 being controlled by a winch 1, the remote end of the rope being anchored to the hoist structure at 4 and this end portion 3A of rope having a tension spring 12 secured thereto tending to generate a portion 3A<SP>1</SP> slack rope and apply a restricted tension to the rope 3. If during movement of the carrier 8 the winch drive is braked sharply, the carrier would tend to rebound to a position 8<SP>1</SP> which would normally operate the slack rope carrier arrester devices 11, but this instantaneous slack rope is taken up by the tensioned spring 12 and the devices 11 are not operated.
Patent GB-177585-A (GB)
Title: Improvements in tennis rackets and the like
IPC: A63B49/12
Filed: 1920-12-22
Abstract: 177,585. Harcourt, C. A. Dec. 22, 1920.. Rackets.-A tennis racket frame or the like is made of an alloy of aluminium, magnesium, copper and manganese, known as duralumin, with or without a wooden handle. Reference has been directed by the Comptroller to Specifications 14798/04, 16914/11, and 171,450.
Patent GB-1511162-A (GB)
Title: Tyre inspection machines
IPC: G01N23/18
Filed: 1975-03-27
Abstract: 1511162 Tyre inspection machines USS ENGS & CONSULTANTS Inc 27 March 1975 [11 April 1974] 36002/77 Divided out of 1511161 Heading B7C The subject matter of this Specification is identical with that described in parent Specification, but the claims are concerned with an X-ray inspection machine for tyres in which an X-ray source and bead spreader means are mounted on a common support which is movable to place the source and bead spreader means in a first position between the planes containing the bead circles of a tyre and in a second position completely outside the space between the planes. Reference has been directed by the Comptroller to Specification 1,420,527.