baber/WOPTO huggingface dataset:
Patent GB-999013-A (GB)
Title: The production of moulded articles
Inventor: GARDNER JOHN ALBERT
IPC: C08G69/18
Filed: 1963-04-23
Abstract: 999,013. Moulding polycaprolactam articles. MONSANTO CHEMICALS Ltd. March 5, 1964 [April 23, 1963], No. 15884/63. Heading B5A. A method of moulding polycaprolactam articles, in particular gears, bushings and bearings, wherein a caprolactam and an anionic polymerization catalyst are placed in a shell mould, the caprolactam is polymerized to form the article, and the article is extracted by breaking open the mould. The preferred caprolactam is #-caprolactam and the catalyst may be an alkali or alkaline earth metal or hydride, fluorohydride, oxide, hydroxide, carbonate or organo-compound of one of these metals. A specific catalytic polymerization process is described in Specification 872,328. The shell mould is made by dipping or spraying an expendable pattern, e.g. of wax, to coat the pattern with several layers of a slurry comprising a refractory finely-divided filler and binding agent. Among filler materials mentioned are aluminosilicates, silicon carbide, oxides, such as silica, silicates, calcined fireclays, calcium carbonate and powdered metals. The preferred silicon-containing binding agent is one formed by hydrolysis of a silicate ester, although an aqueous silica sol may be used. In the former case suitable gelation accelerators include ammonia, or an organic amine and in the latter case calcium carbonate, calcium chloride, sodium carbonate, magnesium oxide, magnesium carbonate, ammonium chloride, hydrochloric acid or sulphuric acid. Instead of silicon-containing binding agents, binding agents such as a latex of polystyrene, polyethylene or a styrene-butadiene copolymer resin or a latex of a rubber capable of vulcanization may be used. A detailed example is given.
Patent GB-1180931-A (GB)
Title: Auger Tooth and Auger Head.
Inventor: CARBERT RALPH E
IPC: E21B10/44
Filed: 1967-04-06
Abstract: 1,180,931. Boring earth &c. TEL-E-LECT, Inc. 6 April, 1967, No. 15926/67. Heading E1F. A tooth 11 is held in a recess 8 in an auger head 7 by a resilient ring 30 which cooperates with grooves 14, 27 in the recess and tooth respectively. The ring is an "O" ring type sealing ring.
Patent GB-954358-A (GB)
Title: Film take-up device
IPC: G03B1/56
Filed: 1960-05-05
Abstract: 954,358. Film feed devices. P. MORIN. May 5, 1960 [May 13, 1959], No. 16006/60. Heading G2E. Film feed mechanism for a cinematographic apparatus comprises a Geneva mechanism and feed sprocket the teeth profile of the latter, as viewed in the axial direction, having a shoulder 15 which during film feed co-operates with a cam 16 to pivot the spring-urged presser plate 11 slightly away from the film gate 12 for free take-up of the film. The amount of film fed past the gate in each movement of the Geneva mechanism, and hence the film image dimensions, depends on the ratio of the number of segments of the latter and the number of teeth on the sprocket wheel or wheels. By choosing a ratio greater than one a panoromic film format can be obtained.
Patent GB-779999-A (GB)
Title: Improvements in or relating to roll-film photographic cameras
IPC: G03B17/42
Filed: 1955-06-03
Abstract: 779,999. Photographic roll-film cameras. KAMERABAU-ANSTALT. June 3, 1955 [June 5, 1954], No. 16013/55. Class 98(1) In a roll-film photographic camera having a winding knob coupled to shutterwinding mechanism and operable to engage or disengage the film-winding mechanism, blocking means is provided to permit disengagement of the film-winding mechanism only when the knob is in a given position with respect to the camera. As shown, a winding knob 1 is rotatably mounted on a shaft 2, and is connected to a shaft by a pin 5 which is slidable in the knob 1 and extends into a bore 4 in a flange 3 of the shaft 2. A gear wheel 6, mounted on the end of a shaft 2, is geared to the shutterwinding mechanism. When the knob 1 is in the retracted position shown in full lines, the pin 5 projects through the bore 4 into a bore in a gear wheel 10 rotatably mounted on the shaft 2 immediately beneath the flange 3. Gear wheel 10 is connected by gears 11, 12 to a sprocket 13 which engages and moves the film through the camera, the film then being taken up on a winding spool 8 which is connected to the shaft 2 by slipping clutches 9. Rotation of the knob 1 in its retracted position thus winds the film and sets the shutter simultaneously.. If, however, the operating knob is lifted against the force of spring 15 into the position shown by broken lines in Fig. 1, pin 5 is withdrawn from the bore in the gear wheel 10, and rotation of the knob 1 sets the shutter without winding the film. The arrangement is such that the shutter winding movement is arrested by a stop when the knob 1 has been turned through one revolution, and this stop is removed only after the shutter release has been actuated. The film winding mechanism is meanwhile locked by means of a pin 16 slidable in a bore in a part 19 of the camera body, which is urged by a spring 17 into engagement with the bore in the gear 10. When the film is to be re-wound after exposure, the knob 1 is pulled out to its dotted line position, where it is held by the engagement of a shoulder on the pin 5 with the edge of the bore in gear 10. The end of pin 16 which engages the bore has a sloping edge, so that the film winding mechanism is able to move in the direction required for rewinding. The film winding knob 1 has a projection (not shown) engaging a recess in the opening 20 in the casing 21 accommodating the knob 1, so that it can only return to its full line position in one position of rotation.
Patent GB-648637-A (GB)
Title: Improvements in or relating to screw-threaded moulded articles
IPC: H01R33/22
Filed: 1948-06-15
Abstract: 648,637. Bolts &c. CLANG, Ltd., and DAVENPORT, L. R. June 15, 1948, No. 16078. [Class 89(i)] [Also in Groups XI and XXII]. A moulded or die cast externally threaded part 1 has the thread in two or more sections 2, 3 tapered down at 6 to leave transverse gaps 4. This permits engagement with the nut even if the mould parts be somewhat out of register and avoids jamming due to the formation of a fin at the parting surface of the mould.
Patent GB-540961-A (GB)
Title: Improvements in and relating to the hard soldering of copper and copper-base articles
IPC: B23K35/30
Filed: 1940-11-05
Abstract: 540,961. Making radiators. ASHBY, C. L. G. Nov. 5, 1940, No. 16090. [Classes 83 (ii) and 83 (iv)] Soldering.-Copper or copper alloy articles, such as radiators, are soldered by first coating the parts with silver, then assembling them and heating to a temperature above 780‹ C. in a non- oxidizing atmosphere so that the silver-copper eutectic is formed and solders the parts together. The coating may be effected by electro-deposition or by joining superposed sheets by heat and pressure. The silver should not be more than 1/16 th as thick as the copper and not more than 0.0003 inch thick. The articles are shaped or treated by stamping, drawing or rolling after coating and then assembled and soldered at about 800‹ C. The non-oxidizing atmosphere may consist of hydrogen, cracked or burnt ammonia, steam, burnt town gas &c.
Patent GB-764606-A (GB)
Title: Process for the preparation of polyalkyleneterephthalates
IPC: C08G63/20
Filed: 1954-05-31
Abstract: Highly polymeric polyalkylene terephthalates obtained by reacting a glycol of formula HO(CH2)nOH (where n = 2-10) and terephthalic acid or an ester-forming derivative thereof in the presence of an esterification catalyst, are viscosity-stabilized by incorporating with the reactants prior to completion of the esterification reaction, a monomeric ester which is either an alkyl-o-benzoyl-benzoate or an alkyl-o-(alkylbenzoyl)-benzoate, all of said alkyl groups containing 1-4 carbon atoms.  The polyesters preferably have a molecular weight of 23,300-35,500 and are especially suitable for the manufacture of bi-axially orientated film by the process of Specification 718,422.  Preferably terephthalic acid or an ester-forming derivative is reacted with excess glycol at 150-265 DEG  C. for about 15-120 minutes to yield the monomeric diester of the glycol with terephthalic acid.  The benzoate is then added and the mixture heated at 277-278 DEG  C. and 0.001-7 mm. of Hg., with continuous agitation for 15-600 minutes.  In examples the following were reacted by the above procedure: dimethyl terephthalate, ethylene glycol and either methyl - o - (p - methylbenzoyl) - benzoate or methyl - o - benzoyl - benzoate. Specification 756,597 also is referred to.
Patent GB-612636-A (GB)
Title: Improvements in positive driving bands for belt gearing
IPC: F16G1/28
Filed: 1946-05-28
Abstract: 612,636. Positive driving bands. LUCAS, S. May 28, 1946, No. 16136. [Class 80 (i)] A positive driving belt consists of a band a of resilient material, e.g. sheet metal, crimped to the approximately involute profile of spur gear teeth, secured at a<1> on one face to a substantially inextensible backing b, comprising a plain or corrugated sheet metal band. The securing means may comprise teeth a<1> stamped in the crimped material a, pressed through slots bl in the backing b, or may consist of soldering or riveting.
Patent GB-871326-A (GB)
Title: Improvements in nuts
Inventor: KREIDER DAVID BOMBERGER
IPC: F16B37/04
Filed: 1959-05-12
Abstract: 871,326. Clips; anchor-nuts. ROHE, F. W. May 12, 1959, No. 16280/59. Classes 44 and 89(1). An anchor-nut comprises a two-part clip with parallel arms 12, 14, Fig. 1, to engage a panel 6 therebetween, aligned holes for a bolt, an annular flange 20 around the hole in arm 14 to lock the nut to the panel, and a nut body 7 having wings 8, Fig. 2, engaging slots 11 in side portions 10 on arm 12. Arm 12 has a T-slot 161, 16<SP>11</SP> in its end remote from body 7 to receive the downturned end 15 of arm 14, end 15 having a finger 17 which urges the arms towards each other.
Patent GB-169013-A (GB)
Title: Improvements in and connected with hydraulic pumps and motors
IPC: F01B13/06
Filed: 1920-06-16
Abstract: 169,013. Stone & Co., Ltd., J., and Davis, S. L. B. June 16, 1920. Liquid-pressure engines.-Relates to hydraulic pumps and motors of the type in which a rotor containing a number of cylinders rotates within an eccentric ring, about a shaft having distributing ports and passages, and in which the eccentricity of the ring is varied by swinging it about an external axis. In the construction shown, the eccentric ring v and its side plates w, x rotate in ball-bearings z on supporting plates 1, pivoted at 2 to the outer casing a. The eccentricity is adjusted by a piston in a fluid-pressure cylinder 18, or by a hand-wheel and screw 8. When the fluid gear is in use, the half-nut 26 is disengaged from the screw 8 as shown in Fig. 3. It is locked in either position by a spring-plunger. Or the screw 8 may be of such a pitch that the fluid gear may act without the nut being disengaged. A spring safety-device 32 places the ring in the inoperative position should the fluid-gear fail. The fluid is distributed to the cylinders j through passages in the fixed shaft b on which the boss of the cylinder-block h rotates. This boss rotates in a ball-bearing l in the casing and may carry a pinion from, or to, which the power is transmitted. As shown, the connecting-rods o are ball-jointed to the pistons and carry rocking shoes q bearing on the eccentric ring v. The outer ends of the rods are guided by links r. In a modification, rollers are substituted for the shoes q. In a further modification, the pivot pin 2 is movable for adjustment of the eccentricity of the ring v.
Patent GB-197567-A (GB)
Title: Improvements in or relating to rotary late news printing machines
IPC: B41F21/00
Filed: 1922-06-14
Abstract: 197,567. Bush, E., and Bush, H. June 14, 1922. Sheet separators and carriers; pile tables and supports.-An automatic sheet-feeding device for feeding newspapers to a rotary machine for printing late news comprises a suction device adapted to draw down the front edge of the lowermost newspaper of a pile, reciprocating grippers 21 which seize the separate paper and draw it from beneath the pile, and endless bands 38 stretched between rollers 37, 40, which carry the paper to the printing and impression cylinders 1, 2. The suction device consists of a hinged plate 6<x> formed with apertures 9 connected by a pipe 10 to a pump, the plate being lowered to separate the bottom sheet bv a link 17 and lever 18 actuated by a cam 20 on a shaft 14 driven from the main shaft 15. The grippers comprise fixed members on a cross-bar 23, and movable members on a shaft 22, all carried in sliding end bearings 24 reciprocated by a lever 26, and link 27, lever 28, and cam 29. The movable grippers are opened by a vertically reciprocating bar actuated by cam-and-lever mechanism. The rollers 40 are geared to the shaft 14, and the shaft 36 of the lower rollers 37, and the shaft 39 of the upper rollers 40 are elastically mounted, so as to hold the adjacent portions of the bands 38 in yielding contact.
Patent GB-476805-A (GB)
Title: Process for manufacturing shells of steel in general
IPC: C21D9/16
Filed: 1936-06-12
Abstract: In drawing or otherwise working steel to make shells, the material is covered with a lubricant having as a base ,5 to 5 per cent of colloidal sulphur emulsified in the lubricant.
Patent GB-529611-A (GB)
Title: Improvements relating to valve seat inserts for internal combustion engines
IPC: F01L3/22
Filed: 1939-06-05
Abstract: 529,611. Retaining valve seats. WELLWORTHY PISTON RINGS, Ltd., and GRAHAME, C. D. June 5, 1939, No. 16415. [Class 7 (ii)] A valve seat insert 11 is retained in position by a spring steel wire 14 engaging a groove 12 in the outer periphery of the insert the width of the groove not exceeding onequarter of the axial dimension of the insert The wire also engages a corresponding groove in the recess into which the insert is fitted. The wire may be wavy or corrugated, and may be of round cross-section, the grooves being correspondingly radiused. Specifications 352,856, 380,195 and 392,432 are referred to.
Patent GB-750567-A (GB)
Title: Improvements relating to radar receiving equipment
IPC: G01S13/524
Filed: 1954-06-03
Abstract: 750,567. Radar. METROPOLITANVICKERS ELECTRICAL CO., Ltd. June 3, 1954 [June 5, 1953], No. 16474/54. Class 40 (7). A pulse radar receiver includes a coherent phase pulse detector to suppress responses from fixed objects and a simple detector combined with means for increasing the sensitivity. The output of the first of these is selected at short ranges and of the second at longer ranges. The range at which the changeover occurs may be adjustable. The signals received may be fed through a preamplifier 2 to both the coherent phase pulse detector 3 and the simple pulse detector 4. Selecting means 6 select the output of detector 3 for short ranges and feed it directly to subtraction circuit 8 and also through delay device 7 which introduces a delay equal to, or a multiple of, the pulse repetition time. The output of circuit 8 which will consist only of signals corresponding to moving objects is fed to the output 10 through a selector 9 operated in synchronism with selector 6. At longer ranges selector 6 derives signals from adding device 5 fed from detector 4 and feeds them through delay device 7 and selector 9 to output 10 and also from delay device 7 back to adding device 5 to increase the sensitivity. Compensation may be made for the delays introduced and also for any inequality of gain.
Patent GB-185859-A (GB)
Title: Improvements in or relating to the treatment of matte and other materials and solutions containing copper and nickel
IPC: C25C1/08
Filed: 1921-06-15
Abstract: A process for the purification of nickel solutions from copper by precipitating the copper by means of finely-divided nickel is carried out at a temperature below that of exhaustion of the nickel. Bessemerized copper-nickel matte may be ground, roasted and leached with sulphuric acid; part of the leached residue is reduced to metal and is used in excess as a precipitant for the solution obtained from the remainder of the leached residue, the precipitation being carried out at normal temperatures, and preferably on the counter-current principle.  The copper-nickel powder with the copper cemented thereon is roasted, preferably in admixture with roasted or unroasted matte. The process may be applied to the removal of copper from any nickel-sulphate solutions and electrolytes, for example in cyclic processes, so that heating and subsequent cooling are avoided.
Patent GB-529683-A (GB)
Title: Improvements in or relating to machines for making and packing cigarettes
IPC: A24C5/35
Filed: 1939-06-06
Abstract: 529,683. Packing cigarettes. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. June 6, 1939, No. 16588. [Class 94 (i)] A combined cigarette-making and packing machine is provided with a reservoir to receive cigarettes from the making-mechanism during a temporary stoppage of the packing-mechanism, and means are provided for speeding-up the packing-mechanism after the stoppage to dispose of the cigarettes accumulated in the reservoir. The cigarettes may be made by a continuous-rod machine C.M., Fig. 1, and carried by endless belt conveyers B to a packing-mechanism P.M. The making-mechanism and the packing- mechanism are driven in timed relation with one another by separate motors 1, 2, respectively, and the conveyers B, although normally driven by the making-mechanism, are connected to both mechanisms through free-wheel clutches such as 80, Fig. 2, so that they can be driven by either mechanism as required. Each conveyer delivers the cigarettes to a shoot 31, and above the entrance to the shoot a reservoir 34 is arranged into which the cigarettes move from the conveyer when the shoot is full, The front wall of the reservoir is formed by a plate 37 which is attached to a spindle 38 and has its lower edge spaced above the conveyer to leave a passage 35 for the cigarettes. The plate 37 is oscillated by a cam 39, or by a rotating crank, to facilitate the movement of the cigarettes from the conveyer into the reservoir. A fluted roller 44, or a fixed ramp, is provided to assist the movement of the cigarettes into the reservoir, and a shield 82, formed in hinged section and oscillated by the plate 37, may be provided to align the cigarettes as they pass out of the reservoir back in on to the conveyer. The roller 44 is driven by a free-wheel clutch so arranged that the roller' is driven at a lower speed when the packing- mechanism is stopped. Flexible bands passing around a roller similar to the roller 44 may be used to prevent the cigarette from bridging across and blocking the mouth of the shoot. When the packing-mechanism is started again after a stoppage, a variable-speed gear 56, attached to the motor 2, is adjusted by a handwheel 57 to cause the packing mechanism and the conveyers B to operate at a higher speed until the cigarettes accumulated in the reservoir have been exhausted, when the speed is again reduced to normal. Specification 514,425 is referred to in the Provisional Specification.
Patent GB-330754-A (GB)
Title: Improvements relating to horse shoes
IPC: A01L7/02
Filed: 1929-05-29
Abstract: 330,754. Gray, B. P. May 29, 1929. Renewable treads; hoof-pads.-A pad 4 of the kind described in Specifications 113,988, 160,984 and 170,477 which is gripped by a resilient metal plate 5 bridging the heel-ends of the shoe is provided with lateral portions extending under the heel-ends. When applied to a shoe with calks 3, the pad may be secured by forward extensions 6 of the plate 5 riveted to the shoe or by rearward extensions 7 extending over the ends of the shoe, or by both these means. Alternatively rivets, preferably two at each side, passing through the pad, shoe and plate may be employed, if necessary with metal sheaths 8 for receiving the head of the rivet. When applied to a shoe without calks, recesses 10 are formed to receive the ends of the pad. The plate 5 may be bent downwardly with its ends 9 under the heel-ends, and its centre portion cranked upwardly to receive frog pressure.
Patent GB-529691-A (GB)
Title: Improvements in and relating to coin freed mechanism of vending machines
IPC: G07F9/04
Filed: 1939-06-06
Abstract: 529,691. Coin action. HALL TELEPHONE ACCESSORIES (1928), Ltd., and HALL, F. W. June 6, 1939, No. 16614. [Class 27] Returning coins. In mechanism in which two coins of different values are required to operate the delivery, means are provided whereby the first inserted coin is returnable to the operator if he finds he has not a coin of the second denomination to complete the purchase. The first coin is retained in its shoot by an arm e pivoted at a<SP>1</SP> and fitted at the top with a pallet a having operating points f<SP>1</SP>, f<SP>2</SP>. The shoot for the second coin has a similar arm e<SP>1</SP> pivoted at b' and fitted with a pallet b in the same plane as pallet a. The abutment of the face f of the pallet a against the point f<SP>1</SP> of the pallet b prevents the arm e from swinging under the weight of its coin far enough out to release the coin, but when the second coin rocks the pallet b the pallet a is freed and the point f<SP>2</SP> of pallet b bears against the face h of pallet a to impart a positive further outward swing to the arm e, both coins then passing into the cashing-in position. Weights g then return the arms and pallets to normal position. In the event of the second coin not being inserted, refund of the first is obtained by a side plate d' of the shoot swung about a pivot k, or by any other known method. The device functions whichever shoot is used first. The pallet mechanism may be mounted in a bracket c attachable by screws m &c. to existing coin operated apparatus. When the coin shoot is tilted sideways, the pallet spindles a<SP>1</SP>, b<SP>1</SP> may have pointed ends for bearing against a side wall of the bracket c.
Patent GB-577854-A (GB)
Title: Improvements relating to the measurement of distances by electromagnetic radiation
IPC: G01S13/14
Filed: 1941-12-26
Abstract: 577,854. Radio-echo apparatus. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). Dec. 26, 1941, No. 16697. [Class 40 (v)] [Also in Group XXXVI] An arrangement for determining the distance of an obstacle by the transmission of pulsating radiation and receiving after reflection uses at the receiver the contemporaneous transmitted radiation and received radiation after reflection to produce pulses whose durations are equal to the time that elapses between the end or beginning of a transmitted pulsation and the end or beginning of the pulsation of the corresponding received reflected radiation, means being provided for giving an indication of the duration of these pulses. In Fig. 1 the full line indicates a frequency wave continuously variable between values f, F. This wave is transmitted and received after reflection at the object with a line lag t, the received wave being shown in dotted lines. The transmitted and received waves are heterodyned giving the resultant shown in the lower part of Fig. 1 in which pulses are formed having a duration equal to the elapsed time of travel of the waves. These are applied to a limiting detector system by which they are transformed into pulsating current of constant amplitude having a mean value proportional to the elapsed time of travel of the waves. The pulsating current is measured on a milliammeter graduated in distances. In a modification, Fig. 3, pulses of duration d greater than the maximum elapsed time for echoes from the most distant objects are transmitted. Reflected pulses shown in dotted lines arrive with a time lag t. The receiver is blocked during each transmitted pulse so that the duration of the received pulses is equal to the elapsed time t of travel of the waves to and from the obstacle as shown in the lower part of Fig. 3. These pulses are applied to a limiting device and their average value read on a milliammeter. Alternatively a cathode-ray oscillograph may be employed.