baber/WOPTO huggingface dataset:
Patent GB-1451483-A (GB)
Title: Magnetic tape drive apparatus
IPC: H04N5/78
Filed: 1973-11-12
Abstract: 1451483 Magnetic tape transports MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 12 Nov 1973 [20 Nov 1972] 52482/73 Heading G5R A magnetic tape drive assembly has a supply reel (2), Fig. 1 (not shown), wound with a magnetic tape having a transparent trailer tape and a stiff, transparent leader tape, a loading means for loading the leader from reel (2) to a take-up reel (11) which automatically engages and holds the leader thereon, means for driving the magnetic tape forwardly from reel (2) to reel (11) at record/replay speed, means for rewinding the tape on to reel (2), a photodetector 14 for sensing the leader and trailer, a stop solenoid 33 for stopping the loading, forward transport and rewind operations, and a control circuit; the control circuit having a delay means 31 for delaying a stop signal to solenoid 33 for a delay  time equal to the time period normally required for the loading operation, a delay means 30 for delaying a stop signal to solenoid 33 for a delay time equal to the time period normally required to rewind the length of the leader or trailer tape on to reel (2), switches 26, 27, 28, 29 operated by detector 14, a switch 25 operated in response to the start of tape transport at the record/replay speed, and a switch 23 operated in response to the start of rewind. Switches 26, 27, 28, 29 are at A when detector 14 detects the leader or trailer and at B when it detects the magnetic tape. On insertion of a cartridge (1) containing supply reel (2), a switch 21 closes and an interlocked switch (not shown), initiates autothreading of the magnetic tape around a rotary heads drum (10). During threading a switch 22 is at A, whereby after the delay of circuit 31, normally sufficient for completion of threading, circuit 31 causes amplifier 32 to energize solenoid 33 thereby moving switch 22 to B and stopping tape transport in a position in which detector 14 senses the magnetic tape and switches 26, 27, 28, 29 are thus all at B, whereby rewinding, fast feed or playback may be selected, causing switch 23, 24 or 25 respectively to move to A, without causing immediate energization of stop solenoid 33. If the threading malfunctions and the operation is stopped by circuit 31 and solenoid 33 before completion of threading so that switch 22 is at B and switches 26 to 29 at A, selection of either fast feed or playback energizes solenoid 33 again via switch 28 or 29 to render the drives inoperative. Provision of delay circuit 30, however, allows rewind to be selected after such stopping by circuit 31 and solenoid 33, and also from stop positions caused by solenoid 33 when detector 14 senses the trailer during normal fast feed or play-back, solenoid 33 responding to detector 14 and circuit 30 to effect autostop at the end of rewind with the leader fully wound on the supply reel (2).
Patent GB-1365958-A (GB)
Title: Container cover
IPC: B65D/
Filed: 1971-11-12
Abstract: 1365958 Opening containers VEREINIGTE ALUMINIUM-WERKE AG 12 Nov 1971 [14 Nov 1970] 52761/71 Heading B8D A sheet metal one piece pull tab, which has a pull ring 9 at one end and nose at the other end for rupturing a weakening line 4 defining a removable panel 5 in a full-opening can end 1, is secured to the panel by a rivet 6 passing through the apertured base 17 of a recess 6 formed in a bent-back integral attachment ear or flap 15, which is located within an aperture 19 provided in the base of a tab-reinforcing recess 14. The bent-back flap, which is formed out of the  metal displaced to form the pull ring opening, resiliently biases the tab towards the can end surface. On raising of the pull ring, the nose is pressed down on to the weakening line, further upwards movement of the tab relative to the flap being guided by contact with wall 18 of the recess until the edge of the aperture 19 engages the rim 20 of the recess 16, Fig. 3 (not shown) Continued raising of the pull ring then causes the nose to rupture the weakening line, Figs. 4 and 5 (not shown).
Patent GB-1096591-A (GB)
Title: Improvements in or relating to electric valves
IPC: H01J25/50
Filed: 1964-12-31
Abstract: 1,096,591. Discharge tubes. M-O. VALVE CO. Ltd. and V. A. HEATHCOTE. Dec. 16, 1966 [Dec. 31, 1964], No. 53039/64. Heading H1D. A pair of tubular electrodes in a discharge tube are accurately supported one within the other with their axes parallel by at least two rods extending at an appreciable angle to one another in a plane perpendicular to the axes of the electrodes, each rod fitting slidingly through at least one aperture in each of two members which are respectively rigidly fixed to the two electrodes, whereby relative movement of the electrodes in a direction perpendicular to their axes is substantially prevented. The end of the cathode 6, Fig. 2, of a multicavity magnetron projects through a central aperture in a metal plate 10 having two oppositely directed pairs of flanges 11 and 12, which are themselves apertured to receive as a sliding fit rods 13, and 14 and 15, respectively. These rods are themselves received as a sliding fit within apertured flanges 19 and 20 of a surrounding metal annulus 16. The annulus is secured to, but spaced from, the vaned anode portion of the surrounding metal envelope (1), (Fig. 1, not shown) by bolts (17) passing through holes 22 which are partly surrounded by cuts 21 to accommodate thermal expansion effects. A cathode end hat 24 is secured to a further flanged metal plate 23 supported by the rods 14 and 15. The other end of the cathode is supported by a similar assembly.
Patent GB-1298678-A (GB)
Title: Polyimines
Inventor: LONGLEY JOHN WILLIAM
IPC: C08G73/00
Filed: 1969-10-31
Abstract: 1298678 Mouldable polyimines from dialdehydes and diamines BBA GROUP Ltd 19 Oct 1970 [31 Oct 1969] 53393/69 Heading C3R A mouldable aromatic polyimine is obtained by reaction of an aromatic dialdehyde with an aromatic diamine in a molar ratio of 1 : 0À5-0À9 in an inert organic solvent. In Examples, polyimines are prepared in methanol from the pairs terephthalaldehyde/m-phenylene diamine, isophthalaldehyde/p-phenylene diamine, and isophthalaldehyde/m-phenylene diamine. The intermediate low molecular weight polyimine obtained is mixed with asbestos and moulded and cured by heat, or mixed with FeCl 3 , AlCl 3  or BF 3  as a "Lewis acid" curing catalyst and cured by heat.
Patent GB-1180199-A (GB)
Title: Process and apparatus for Simultaneously Cutting and Forming Plastics Material
IPC: B26D1/00
Filed: 1968-11-11
Abstract: 1,180,199. Cutting plastics blocks. LUXIT S.A. 11 Nov., 1968 [23 Nov., 1967], No. 53439/68. Heading B5A. A block of plastics material is cut into sections by electrically heated cutting elements mounted in a frame in the required configuration. As shown, the frame 1 carries two insulated bars 8, 9. Cutting blades 2, 3, 4, 5, 6 and 7 are mounted on the bars 8 and 9 and are joined by wires 10, 11, 12, 13. The blades and wires are electrically heated by current supplied thereto from plugs 16, 17 and conductive devices 14, 15 attached to the blades. Perforations 18 in the frame permit cooling air to be blown on to the plastics block from pipe 19. The frame 1 is preferably mounted so that the plastics block can be passed through it for cutting and is preferably releasably mounted so that it can be exchanged for a frame of different cutting configuration.
Patent GB-1137179-A (GB)
Title: Improved clutch mechanism
IPC: F16D23/04
Filed: 1966-12-01
Abstract: 1,137,179. Positive clutches. VEEDER INDUSTRIES Inc. 1 Dec., 1966 [10 Jan., 1966], No. 53784/66. Heading F2C. A positive clutch for a counter drive comprises a driving clutch element 14 (or 74) having pins 44 (or teeth 98) individually resiliently urged by spring strips 52 (or 96) towards teeth 48 (or 84) on a driven clutch element 16 (or 75). The number of teeth on one of the clutch elements is greater than and not a multiple of the number of teeth on the other clutch element. In Fig. 1 the driving clutch element 14 is freely rotatable in a frame 26 and carries clutch pins 44 pressed by spring strips 52 toward peripheral teeth 48 on a driven disc 16 which is freely rotatable on and axially movable with a control shaft 12. A friction disc 56 carried by pins 60 axially slidable in holes in the driving element 14 and urged by a spring 64 towards the driven disc 16 synchronizes the clutch elements during engagement. In Fig. 4 an axially slidable driving disc 74 of plastics material has two rings of teeth 102, 104 with radially aligned gaps between the teeth in which plastic keys 98 are axially slidable. The keys 98 are connected by resilient strips 96 to the hub 77 of the driving disc 74 and engage between teeth 84 of a plastics driven member 75. A spring 79 urges the driving disc 74 towards the driven member 75. Sufficient backlash may be provided to ensure that one pin or key engages between the teeth during axial engaging movement. Preferably the numbers of teeth on the driving and driven elements are not divisible by a common whole number greater than one.
Patent GB-1080520-A (GB)
Title: Amide lubricants
IPC: C10M169/00
Filed: 1965-12-20
Abstract: The invention relates to lubricants consisting of, or comprising a major amount of an amide of the general formula <FORM:1080520/C4-C5/1> wherein X is a C3- 12 hydrocarbylene group; R1 and R2 are each a C3- 12 alkyl or C3- 12 cyclo-alkyl group or an aryl group having at most 12 carbon atoms; and R is a hydrogen atom or a group of the general formula <FORM:1080520/C4-C5/2> wherein R3 and R4 are each a C3- 12 alkyl or C3- 12 cycloalkyl group or an aryl group having at most 12 carbon atoms.  Preferably, there is at least 75% of the weight of the amide based on the weight of the lubricant which may also include an anti-oxidant, e.g. a phenol or amine. Specified amides are N,N-di-n-propylbenzamide, N - butyl - N - phenyl - n - octanamide; N,N-di - n - butyllauramide; N,N - di - n - octyl benzamide; N - cyclohexyl - N - propylbenz - amide; N - N - di - cyclohexylbenzamide; N - n - hexyl - N - n - propyl isophthalamide; N,N - di - n - propyl - para - tertbutylbenzamide; bis - (N,N - di - n - hexyl) adipamide; bis - (N,N - di - n - propyl) phthalamide; and bis-(N,N-di-n-propyl) isophthalamide. The first compound is prepared by adding di-n-propylamine to benzoyl chloride and the penultimate compound by adding the same amine to phthalac acid and heating.ALSO:The invention relates to lubricants consisting of or comprising a major amount of an amide of the general formula <FORM:1080520/C2/1> wherein X is a C3- 12 hydrocarbylene group; R1 and R2 are each a C3- 12 alkyl or C3- 12 cycloalkyl group or an aryl group having at most 12 carbon atoms; and R is a hydrogen atom or a group of the general formula <FORM:1080520/C2/2> wherein R3 and R4 are each a C3- 12 alkyl or C3- 12 cycloalkyl group or an aryl group having at most 12 carbon atoms.  Preferably there is at least 75% of the weight of the amide based on the weight of the lubricant which may also include an anti-oxident.  Specified amides are N,N - di - n - propylbenzamide, N - butyl - N - phenyl - n - octanamide; N,N - di - n - butyllauramide; N,N - di - n - octyl benzamide; N-cyclohexyl - N - propylbenzamide; N,N - di - cyclohexylbenzamide; N - n - hexyl - N - n - propyl isophthalamide; N,N - di - n - propyl - para - tertbutylbenzamide; bis - (N,N - di - n - hexyl) adipamide; bis - (N,N - di - n - propyl) phthalamide; and bis-(N,N-di-n-propyl) isophthalamide. The first compound is prepared by adding di-n-propylamine to benzoyl chloride and the penultimate compound by adding the same amine to phthalac acid and heating.
Patent GB-1535450-A (GB)
Title: Electrophotographic development
IPC: G03G15/09
Filed: 1976-12-23
Abstract: 1535450 Magnetic brush development SPEED-O-PRINT BUSINESS MACHINES CORP 23 Dec 1976 53965/76 Heading B2L In magnetic brush developing using a onecomponent developer, the magnetic core is divided into axially extending segments, adjacent segments having opposite polarity, and the relatively rotatable cylindrical sleeve has a non-conductive shell. The sleeve may be Al, anodized either solely on the outside, or over all its surface to give an insulating shell, or may be of plastics, which may itself have a further outer layer of plastics such as PTFE.
Patent GB-1479783-A (GB)
Title: Chemical analysis apparatus
IPC: G01N30/84
Filed: 1974-12-16
Abstract: 1479783 Analysis of chromatography effluent; sample conveyer PYE Ltd 16 Dec 1974 54185/74 Heading G1B A sample conveyer system comprises a track in the form of substantially horizontal tube 20 for conveyance of samples, one or more unattached carrier elements 40 located on the track, the or each carrier element occupying the width of the track and having a portion adapted to retain a sample, and means 13 for vibrating the track to effect movement of the carrier element(s) along the track. In the embodiment shown each carrier element is a steel bar having stainless steel metal mesh 41 wrapped around it, the bar being shaped to conform with the curvature of the track in tube 20 Fig. 3 (not shown). In an alternative embodiment there may be used a single carrier element in the form of a continuous ring of wire mesh weighted at intervals with steel bars. Vibrator unit 13 provides reciprocatory motion of controllable amplitude. The system may be used in apparatus for analysis of chromatography column effluent, the effluent being deposited via a tube 50 on to each or the carrier element as it passes opening 26 in thermally insulating jacket 30. The deposited effluent passes heat gun 43, which evaporates solvent to leave a residue, heat gun 44, which gasifies the residue, and heat gun 45, which cleans the surface of the carrier element, the gasified residue being swept to the detector system by an air stream introduced at 21, 23. Carbon dioxide in the stream reacts with hydrogen over a nickel catalyst in reaction chamber 59 to produce methane which is detected by flame ionization detector 60.
Patent GB-1409387-A (GB)
Title: Process for preparing 5-fluorocytidine
IPC: C07H19/06
Filed: 1973-11-26
Abstract: 1409387 5-Fluorocytidine KOHJIN CO Ltd 26 Nov 1973 [28 Nov 1972] 54811/73 Heading C2C 5-Fluorocytidine is obtained by reacting a pyridimidine nucleoside of the Formula (II) in which R is H or an acyl group, in a solvent with fluorine diluted with an inert gas, e.g. N 2 , Ar, He, CFCl 3  or CF 4 , and then, when R is an acyl group, hydrolysing the reaction product. Suitable solvents are water, alkanols, aliphatic acids and esters, fluorinated hydrocarbons, fluorinated aliphatic acids and esters, and fluorinated ketones, and mixtures thereof. The reaction takes place at temps. from -20‹ to +50‹ C. Suitable starting materials are those in which R is H, CH 3 CO-, C 6 H 5 CO- or CH 3 .C 6 H 4 .CO-. 5-Fluorocytidine is an important intermediate for the production of 5-fluoro-2,2<SP>1</SP>-cyclocytidine which is a useful cytotoxic agent against cancer.
Patent GB-1450554-A (GB)
Title: Cuff-button concealing means
IPC: A44B5/00
Filed: 1973-11-26
Abstract: 1450554 Concealing cuff buttons SOC FRANCO-HISPANO-AMERICAINE 26 Nov 1973 [29 Nov 1972] 54827/73 Heading A3H Concealing means for a cuff button comprises a first member 1 hinged to a second member or cover 3. The loop 6 is placed over the button before the cuff is buttoned so that the member 1 is between the two parts of the cuff. The cover 3 is maintained by resilient means in an open position (Fig. 1) or closed over the button (Fig. 5) where it is locked by the lug 10 which passes through the button hole to engage with the member 1 at the narrowed region 5. The member 1 may be formed from metal wire as shown or may comprise a thin plate having a slot of corresponding shape.
Patent GB-1060060-A (GB)
Title: Garment hanger
IPC: A47G25/26
Filed: 1965-12-24
Abstract: 1,060,060. Garment hangers. M. M. EVANS. Dec. 24, 1965, No. 54875/65. Heading A4U. A garment hanger is provided with a garment gripping device including one or more garment gripping brushes disposed at or adjacent the outer ends of the downwardly sloping shoulders of the hanger. In one embodiment (Fig. 1) the gripping devices 16, 17 are detachably mounted on a wire hanger. Each gripping device 16, 17 is formed from bent wire to define hanger gripping loops 18, 20 and parallel arms 19, 21 defining an open ended U-recess with co-operating gripping brushes 22, 23 closing the open end of the recess. In another embodiment (Fig. 3, not shown), a one piece wire hanger 24 is bent to define U-recesses which are closed by co-operating gripping brushes 37, 38 and 39, 40 at the outer ends of the hanger shoulders. In a modified wire hanger (Fig. 4, not shown), the brushes 43 are detachable. In a further embodiment (Fig. 5, not shown), a hanger of plastics or wood is formed with U-shaped recesses 47, 48 extending longitudinally into its arms 45, 46 and one or two brushes 49-52 close the open end of each recess 47, 48. The brushes 49-52 may be detachable or rigidly secured to the arms 45, 46.
Patent GB-1165600-A (GB)
Title: Radar Sector Gate Apparatus.
IPC: G01S7/14
Filed: 1967-12-05
Abstract: 1,165,600. Radar. HAZELTINE CORP. 5 Dec., 1967 [23 Jan., 1967], No. 55214/67. Heading H4D. The Specification describes apparatus whereby an azimuth gate signal is produced indicating when the beam of a scanning radar antenna is sweeping through an azimuth sector extending from azimuths (α-γ) to (α + γ). In the embodiment of Fig. 1, signals proportioned to Sin # and Cos # (where # is the azimuth angle) are fed to the 0 degree point of respective Sin/Cos potentiometers 14 and 16. The 180 degree points of the potentiometers are earthed, and the winding distribution is such that orthogonal wipers 24 and 28 at respective angular positions of (α + #) and -(90-α-#)Á produce signals at 22 and 26 representing and wipers 36 and 40 at position of (α+#) and (α+#+90) produce signals at 34 and 38 representing # is a predetermined constant angle e.g. 45 degrees and γ = #-#, such that setting # sets γ the half angle width of the azimuth section. The signals at outputs 26 and 34 are combined in means 50 to produce a signal containing a term cos (#-α-#) together with an unwanted sine term; and the signals at outputs 22 and 38 are combined in means 44 to produce a signal contains a term sin (#-α-#) together with said unwanted term. These signals are fed to a mixing network 68 comprising resistors 72 and 74 of resistance R and resistor 76 of resistance R1. The mixer output 78 produces a signal containing a term:- and output 80 produces a signal containing a term:- Both outputs also contain an unwanted term, and this removed in differential amplifiers 96 and 92 using the output of a network 84, equal to said unwanted term, as the subtrahend. If network 68 is adjusted such that #= then the outputs of amplifiers 96 and 92 are:- S 7  = sin (#-α+γ) and S 8  = sin (#-α-γ) respectively where S 7  = 0, # = α-γ and the beam is starting to sweep the azimuth section, and when S 8  = 0, #=α+γ and the beam is leaving the section. Signals S 7  and S 8  are thus converted to square signals and the square signal derived from S 8  is gated by the inverse of the square signal derrived from S 8  is gated by the inverse of the square signal derived from S 7 . The output of gate 118 is a pulse extending between times representing the presence of the beam within the azimuth section. Fig. 3 (not shown) shows an embodiment wherein the bearing # information is fed in using a three wire synchro-system.
Patent GB-1246307-A (GB)
Title: Improvements in or relating to rotary positive displacement pumps
IPC: F04C15/00
Filed: 1968-11-22
Abstract: 1,246,307. Rotary pumps. BRONZAVIA. Nov.22, 1968 [Nov.28, 1967], No.55483/68. Heading F1F. A rotary positive displacement pump comprising a housing having at least one rotary element therein and two side-wall members within the housing, one on either side of the rotary element, with at least one movable axially with respect to the housing and the rotary element, wherein the movable side-wall member is subjected at least on part of its face adjacent the rotary element to a pressure close to delivery pressure and wherein means are provided to apply to at least part of the other face of the movable side-wall a regulated back-pressure whose magnitude determines the lateral clearance between the rotary element and the side-wall members. As described, the invention is applied to a gear pump having a pair of inter-meshing gears 30, Figs.1, 2 rotatably mounted in a two-port housing 1a, 1b with each disposed between a fixed side-wall member 24 and an axially-movable side-wall member 6 mounted in stepped bores 5, 4 in the housing parts. Each side-wall member 6 is stepped and with the bore 4 and a fixedly located ring member 7 defines annular chambers C 1 , C 2 , C 3 , communicating with the pumping chamber midway between the inlet 2 and outlet 3. The chamber C 1  through a passage 19, the chamber C 2  through a passage 16 and an arcuate recess 14 and the chamber C 3  through a passage 17 and the arcuate recess 14. The chamber C 2  also communicates with the passage 17 through a restricted passage 18 and the chamber C 3  with a chamber 12 connected to the pump inlet by a jet passage 11 the size of which determines the pressure in the chambers C 2 , C 3  and hence the clearance between the side-wall member 6 and the side face of the gear 30 which is sufficient to preclude excessive leakage without excessive friction. Arcuate recesses 13, 15 on either side of the recess 14 enables a pressure of constant magnitude to be maintained. The recesses 13, 14, 15 are matched by corresponding recesses 25, 26, 27 in the sidewall member 24 and inter-connected by balancing passages 31, 32 through the gears and spaces between the gear teeth. The passages 32 are connected by radial passages 33 to the roots of the gear teeth. In a modification, the jet passage 11 is replaced by a perforated spring-loaded washer located at that end of the chamber C 3  remote from the gear 30 which co-operates with an adjustable screw-threaded plug having a central bore through which leakage occurs to again determine the pressure in the chambers C 2 , C 3 .
Patent GB-1350369-A (GB)
Title: Nematic phases
IPC: C09K3/00
Filed: 1972-12-01
Abstract: 1350369 Liquid crystal compositions MERCK PATENT GmbH 1 Dec 1972 [11 Jan 1972] 55532/72 Heading C4X A composition possessing a nematic phase consists by weight of 20-60% of a mixture of 25-50% of p-(n-butyl)-p<SP>1</SP>-methoxyazoxybenzene and 75-50% of p-methoxy-p<SP>1</SP>-(n-butyl)- azoxybenzene, together with 80-40% of a pp<SP>1</SP>-di-(n-alkyl)-azoxybenzene, in which the alkyl groups are identical and are n-butyl, npentyl or n-hexyl.
Patent GB-1394212-A (GB)
Title: Device for the sterilization of packaging materials
IPC: B65B55/10
Filed: 1973-11-30
Abstract: 1394212 Sterilizing packaging webs QUEPOR SA 30 Nov 1973 [22 Dec 1972] 55570/73 Heading A5G One side of a web of packaging material 2 is sterilized by passing it over a plurality of rotatable drums 18 having circumferential surfaces made of a liquid-permeable material and which are impregnated with a liquid sterilant e.g. hydrogen peroxide solution. The drums are contained in a closed chamber 1 in which a positive air pressure is maintained by the introduction of warm air through the inlet 14 which air also serves to dry the web surface before it passes to the packaging machine and after it has traversed the squeeze roller 12. A construction of a roller is shown in Fig. 1 wherein liquid sterilant may be introduced at 23 into the stationary chamber 22, 20 from whence it passes into the space 24 between the outer cylinder with ends 15 and 16 and permeable wall 8 and the impermeable inner cylinder 18, excess sterilant returning through the hollow axle 26 to the chamber 27, 28 for recycling after any necessary treatment.