baber/WOPTO huggingface dataset:
Patent GB-832651-A (GB)
Title: Improvements in or relating to rollers for rollerways or belt conveyors
IPC: B65G39/02
Filed: 1957-12-10
Abstract: 832,651. Idler rollers for belt conveyers; roller ways. HALBRON, S. Dec. 10, 1957 [Dec. 28, 1956; March 1, 1957; May 28, 1957], No. 38312/57. Class 78 (1). A roller for a rollerway, or for supporting the belt of a belt conveyer, comprises a roller casing 1, Fig. 1, preferably of plastic material, end supports 3 for the casing of plastic material each provided with a recess 4 for a ball-bearing 10 sealed by a cover-plate 11, and an interconnecting tube 6 also of plastic material on which the end supports are mounted, a steel axle 7 passing through the tube 6 and being engaged in the bearings 10. In a modification, Fig. 7, the interconnecting tube 26 at each end is received in a circular groove 25 in a hub portion 28 of a bearing half-shell 23 of plastic material; A second half-shell 24 of plastic material is glued to the first half-shell over mating surfaces 31, 32 to enclose a ball-bearing 30 which is held in position on the shaft 27 by a shoulder 33. The half-shell 24 includes a hub portion 36. The two hub portions 28, 36 both engage the shaft 27, the portion. 36 having spiral or circular grooves 46 to retain lubricant in the bearing. The assembly of the two half-shells is secured to a plastic end support 38 for the roller casing 21 by an annular rib 39 integral with the end support, the rib 39 being glued within a circular groove 29 in the half-shell 23. Radial ribs 40 are provided to strengthen the end supports. Intermediate supports 45 are secured between the tube 26 and the casing 21 at one or more points along the length of the roller. Dust is prevented from entering the bearing by a lip formed in the centre of the end support and co-operating with a groove 44 in the shaft. In a modified construction (Fig. 8, not shown), the casing 21 is made thicker towards the centre of the roller so that its internal radius increases outwardly, the intermediate supports 45 being of correspondingly increasing diameters from the centre outwards. A ring member is also inserted between the periphery of the half-shell 23 and the casing 21.
Patent GB-327160-A (GB)
Title: Improvements in operating devices for fire alarm, escape or extinction apparatus
IPC: A62C35/64
Filed: 1928-12-28
Abstract: 327,160. Johnson, J. Y., (Globe Auto. matic Sprinkler Co.). Dec. 28, 1928. Operating doors pneumatically and by lever, link, and like mechanism.-In a device for operating fire-extinguishing, alarm, or escape apparatus, the evacuation of a chamber provided with a flexible wall, which, at both sides, is subject normally to atmospheric pressure, is arranged to operate a trip device to release a locking member. As shown, Fig. 1, the device 5 has a normally locked arm 3 connected to the apparatus to be operated, and its chamber is adapted to be evacuated by suction devices 46 which are thermally controlled. The pivoted arm 3, Fig. 2, is urged to open position by a spring plunger 30 but'is locked by the hooked arm 7 of a latch lever 4, which is retained in position by the levers 16, 21, 23, 27 and a spring 33. When the chamber 1 is evacuated, its diaphragm 2 is pressed inwardly, causing the pin 31 to release the train of levers and finally the arm 3. When the arm 3 is moved in to reset the apparatus, it first moves out of the way a latch 39, permitting a spring 36 to move the lever 4 to normal position. The lever 16, 21 is then reset by turning its pivot pin 18. Each suction device 46, Fig. 1, comprises a bellows 47 connected by a pipe 51 to the chamber 1 and normally held contracted, with a spring 54 under compression, by a rod 55. The latter is held by struts 85, 86 and a body 69 of fusible material on a stem 62. A collar 61 on the latter acts to seal a passage 58 through which the rod 55 passes. If, in the event of excessive heat, the body 69 is fused, the stem 62 is released, allowing the rod 55 to fall away and the spring 54 to expand the bellows 47. This evacuates the chamber 1, releasing the arm 3. Several suction devices 46 mav be connected to a single device 5 by employing a junction box 71, Fig. 8. This embodies a chamber 72 connected to the chamber 1 and ports 77, 78 controlled by gravity valves 76 and leading to the various suction devices. Reference has been directed by the Comptroller to Specification 327,435, [Class 47 (ii), Fire-extinguishing &c.].
Patent GB-1406851-A (GB)
Title: Couplings for tubular scaffoldings
IPC: E04G7/14
Filed: 1972-08-17
Abstract: 1406851 A coupling for tubular scaffolding J M ZAIDAN 17 Aug 1972 [1 July 1972] 38347/72 Heading E2B A coupling for tubular scaffolding comprises a central link 3 having two pairs of arms 6, 7 and 8, 9 which project in opposite directions from a connecting position and have apertures 10, 11 or 13, 12 therein, and a pair of wedges 15, 16, the former being received by the apertures 13, 12 in the arms 8, 9 respectively and the latter being received by the apertures 10, 11 in the arms 6, 7 respectively. In use a tubular scaffolding 1 is positioned within the arms 8, 9 and a tubular scaffolding 2 is positioned within the arms 6, 7. Clamping is effected by the respective wedge 15 or 16  being hammered into apertures 13, 12 or 10, 11 so that the scaffolding 1 or 2 abuts the connecting part of the central link 3. The narrower end of each wedge 15 or 16 is provided with a tongue 17 or 18 to prevent the escape of the wedges from the coupling. Each pair of arms has a portion which is flared outwardly to facilitate the entry of the tubular scaffolding therebetween. The coupling may be made of mild steel sheet.
Patent GB-1519725-A (GB)
Title: Growing single crystals
IPC: C30B29/06
Filed: 1976-09-16
Abstract: 1519725 Crystal pulling INTERNATIONAL BUSINESS MACHINES CORP 16 Sept 1976 [22 Oct 1975] 38428/76 Heading B1S In a process for pulling a silicon crystal from a melt contained in a vessel whose inside surface at least is made from silica, the crystal is continuously rotated as it is pulled and the vessel is rotated in the opposite direction in such a way that a periodic shearing action is set up at the melt/vessel interface, so as to ensure a more uniform concentration of oxygen in the crystal. The shear may be set up by rotating the vessel intermittently at 5-20 r.p.m., the periods of rotation and non-rotation being between 1 and 15 seconds although not necessarily equal. The seed crystal used may be 3 inches long by  inch square having a 1,0,0 latice orientation. The crystal may be rotated at 5-25 r.p.m. and may have a diameter of 1-5 inches and a length of 12-16 inches. An atmosphere of argon may be used. Heating may be by carbon resistance or R.f. heaters.
Patent GB-1323909-A (GB)
Title: Method of treating an incompetent earth formation
IPC: C09K17/40
Filed: 1970-08-10
Abstract: 1323909 Electroless metal deposition in well bores SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 10 Aug 1970 [11 Aug 1969] 38438/70 Heading C7F [Also in Division E1] The walls of an incompetent earth formation surrounding a well bore are plated with a metal, such as nickel, cobalt copper or iron, by injecting a conventional activating agent followed by an electroless metal plating solution containing phosphite ions, hydrogen phosphite ions or dihydrogen phosphite ions. Conventional additives and procedures are described. The actuating agent solution contains gum arabic in addition to PdCl 2  and hydrozine.
Patent GB-1475215-A (GB)
Title: Process for the preparation of dihydroxyanthraquinones
IPC: C09B1/08
Filed: 1975-09-19
Abstract: 1475215 Dihydroxyanthraquinones BAYER AG 19 Sept 1975 [21 Sept 1974] 38529/75 Heading C2C 1,5 - Dihydroxyanthraquinone, 1,8 - dihydroxyanthraquinone or a mixture thereof is prepared by (1) treating an alkali metal or alkaline earth metal salt of the corresponding anthraquinone disulphonic acid with lime in an aqueous medium at elevated temperature and pressure in the presence of a buffer, and (2) adding a surface active agent to the mixture from (1) and acidifying the mixture with a mineral acid in a continuous process in a tubular reactor at 50 to 150 C. and 1 to 3 bars. Step (1) is preferably carried out in the presence of an oxidizing agent, e.g. sodium or potassium nitrate. The buffer is preferably magnesium chloride and the surface active agent is preferably an oxethylated condensation product of p-hydroxydiphenyl with benzoyl chloride.
Patent GB-1106805-A (GB)
Title: Electronic protection apparatus
Inventor: SCHNABEL HANS
IPC: H02H3/093
Filed: 1965-09-10
Abstract: 1,106,805. Protective arrangements. STARKSTROM-ANLAGENBAU ERFURT. 10 Sept., 1965, No. 38716/65. Heading H2K. An overcurrent protective arrangement for an A.C. circuit has a Schmitt trigger 8 which shapes the input current into pulses each having a duration dependent on the magnitude of the input current. These pulses are applied to a monostable circuit 12 and a negator 9, both connected to an OR element 15. When the pulse duration is sufficiently long, the monostable circuit 12 changes to its unstable stable and this circuit 12 and the negator 9 both apply an O signal to the element 15, so that a further negator 16 connected to the OR element 15 provides a 1 signal on each pulse. The frequency of these pulses is reduced by a frequency divider and the resulting pulses are applied to counting stages so that after a predetermined number of pulses a tripping circuit is energized, Fig. 2 (not shown). The negator 16 may also control an indicator 19 through a bi-stable circuit 17 and amplifier 18. A further monostable circuit (as 12) and a further OR element (as 15) may be associated with the negator 9 for response to a longer pulse duration and to control the tripping circuit without the delay of the counting stages.
Patent GB-1107264-A (GB)
Title: Improvements in artificial legs
IPC: A61F2/60
Filed: 1963-10-02
Abstract: 1,107,264. Artificial legs. C. E. L. ALLEN. 1 Oct., 1964 [2 Oct., 19631, No. 38794/63. Heading A5R. An artificial leg comprising thigh, knee joint. shin, and heel and fore-foot portions, and provided with hydraulic means controlling knee flexure, and means responsive to the application of weight to either of the foot portions to close a hydraulic by-pass circuit so as to restrict the flexure, is characterised in that the forefoot portion is urged by springs to a non-flexed position so as to give thrust-off when walking and is attached to a push rod and lever system which actuates a valve controlling the hydraulic by-pass. As described, a piston connected to the thigh portion 1 moves in a cylinder 13 in the shin portion subject to the free flow of hydraulic fluid in the cylinder through a bypass around the piston, the by-pass including a shuttle valve controlled by a rod 38 from the foot. The foot comprises a heel part having a pressure button 37, and pivoted to this a forepart 28 connected to the rod 38 by a linkage 32. 33. Pressure on the button 37 or pivoting of the forepart 38 moves the rod 38 upwards and, through an eccentric cam and the shuttle valve, prevents movement of the piston and flexure of the knee joint. Flexing of the knee joint within 11 degrees is permitted, before full locking of the knee joint takes place, by connecting the piston rod 8 to the abovementioned piston through a second piston, a certain relative movement between the two being possible under the action of a spring and bleeding of the hydraulic fluid.
Patent GB-868905-A (GB)
Title: Variable resistor with vernier control
Inventor: BARDEN WAYNE AHIJAH
IPC: H01C10/32
Filed: 1959-11-17
Abstract: 868,905. Variable resistors. INTERNATIONAL RESISTANCE CO. Nov. 17, 1959, No. 38941/59. Class 37. A reduction in gearing between the operating: shaft 8 and the rotor 19 is obtained by the use of intermediate balls 23. Overlying the rear face of the base 6 is a resistance element 12 and a metal collector ring 14, held in place by terminals 13 and 15 respectively. Resilient contact fingers 16 and 17 form part of the contactor 18, mounted on the rotor or contact carrier 19, which is rotatable about the axis of the shaft. Rotation of the shaft is transmitted to the carrier 19 by a driving element 21 provided with an inner rotatable track 21a and a stationary outer track 22 which causes balls 23 to rotate between the tracks. The track 22 is formed by the inside surface of a frusto-conical rearwardly projecting extrusion of the rear wall which is secured to the base 6 so providing a housing for the resistor mechanism and a support against rearward movement of the carrier. The carrier 19 coacts with the tracks to hold the balls in place and also provides the means for applying the rearward axial thrust of a spring 26 on the balls. The carrier has a circular wall 27, Fig. 4, projecting from its rear surface 25, shaped on its inside to provide three pockets 28, separated from one another by lugs 29 in order to provide a smooth driving connection between the balls and the carrier. When the shaft rotates the balls go into orbital motion about it at a much slower rate than the shaft rotation and this motion is transmitted directly to the carrier to effect the fine adjustment of the resistor. The adjustment is confined to less than 360 degrees by means of stop abutments 30 on the contactor carrier 19, with a stationary stop 31 on the cover, Fig. 3. In a modification, Fig. 5 (not shown), the shaft can be secured against forward usual displacement by providing its end portion with a spoolshaped configuration. U.S.A. Specification 2,632,832 is referred to.
Patent GB-1526149-A (GB)
Title: Antibacterial 3-phosphono penams
IPC: A23K1/16
Filed: 1976-09-20
Abstract: 1526149 3-Phosphono penams PFIZER Inc 20 Sept 1976 [6 Oct 1975 26 April 1976] 38950/76 Headings C2P and C2C The invention comprises compounds of formula wherein R<SP>1</SP> is phenyl, phenoxy, 1,4-cyclohexadienyl, thienyl, hydroxyphenyl, (aminomethyl)phenyl; R<SP>2</SP> and R<SP>3</SP> are each H or Me; and Q is hydrogen, amino, carboxy or sulpho; with the provisos that: (i) when R<SP>1</SP> is phenoxy or (aminomethyl)phenyl, then Q is hydrogen; (ii) when Q is carboxy, then R<SP>1</SP> is phenyl or thienyl; and (iii) when Q is sulpho, then R<SP>1</SP> is phenyl; and pharmaceutically acceptable salts thereof. Preparation of the above compounds is from their 6-aminopenam analogues (in which R<SP>2</SP> is H, Me or trialkylsilyl, and R<SP>3</SP> is Me) by reaction with an appropriate acylating agent (in which any amino group is protected, or replaced by azido), followed by removal of any aminoprotecting or trialkylsilyl groups or catalytic hydrogenation of any azido group. Any of the above steps may be preceded or followed by salification and/or by conversion of a dimethyl ester (R<SP>2</SP> = R<SP>3</SP> = Me) to a monomethyl ester (e.g. with LiI/py); and a final product which is a mono- or dimethyl ester may be demethylated (e.g. with LiI/py/Me 3 SiCl) to give the free acid (R<SP>2</SP> = R<SP>3</SP> = H) which may then be re-dimethylated (Ex. 38). Procedures for effecting all the foregoing reactions are discussed in extenso. Intermediates obtained in the above processes are 6 - (D - 2 - azido 2 - phenylacetamido) - 2,2- dimethyl - 3 - (O - methylphosphono)penam; 6 - {2 - [2 - (azidomethyl)phenyl]acetamido} - 2,2- dimethyl - 3 - (O - methylphosphono)penam; and their O,O - dimethylphosphono analogues (Exs. 12, 20, 35, 36). α - (Tritylamino) - 5,5 - dimethyl - 3 - thiazoline - 2 - acetic acid (see Specification 1,526,150) + dimethyl phosphite#α - (tritylamino) - 5,5 - dimethyl - 4 - (O,O - dimethylphosphono) - thiazolidine - 2 - acetic acid#6- (tritylamino) - 2,2 - dimethyl - 3 - (O,O - dimethylphosphono)penam (IV)#6 - amino - 2,2 - dimethyl - 3 - (O,O - dimethylphosphono)penam via the p-toluenesulphonate (Va) of the latter (Exs. 5, 6, 26). IV#6 - Tritylamino - 2,2 - dimethyl - 3 - (O- methylphosphono)penam#6 - amino - 2,2 - dimethyl - 3 - (O - methylphosphono)penam (VIII) via the p-toluenesulphonate of the latter (Exs. 7-9). Alternatively VIII is obtained from Va supra (Ex. 31). N - (2 - Methoxycarbonyl - 1 - methylvinyl) - D - 2 - phenylglycine Na salt and its 2 - (3- thienyl) analogue are prepared from D-2-phenyl- or D-2-(3-thienyl)-glycine by reaction with methyl acetoacetate (Exs. 15, 17). D - 4 - (1,4 - Cyclohexadienyl) - 1,3 - oxazolidine-2,5-dione is prepared from D-2-(1,4-cyclohexadienyl)glycine by reaction with COCl 2  (Ex. 18). Compounds I and their salts are credited with antibacterial activity, and may be used as animal feed supplements to promote growth.
Patent GB-970799-A (GB)
Title: Process for the anionic polymerization of acrylonitrile
IPC: C08F20/44
Filed: 1962-10-15
Abstract: 970,799. Polymerizing acrylonitrile. MONSANTO CO. Oct. 15, 1962 [Nov. 13, 1961], No. 38970/62. Heading C3P. Polyacrylonitrile is made by polymerizing acrylonitrile in solution, in an inert solvent, in the presence of a catalyst which consists of (a) an aluminium trialkyl, and (b) a compound of the formula MOR wherein M represents an alkali or alkaline earth metal, and R represents a lower alkyl or hydrogen. In the catalyst (a) and (b) are present in molar ratios of from 0À5:3 to 3:0À5, and the catalyst is formed in a paraffin hydrocarbon solvent, under anhydrous conditions, and in an inert atmosphere. The polymerization solvent may be dimethyl sulphoxide, dimethyl formamide, dimethyl acetamide, or heptane. The polymer may be recovered by precipitation with methanol. The catalyst exemplified is aluminium triethyl and sodium isopropyl oxide.
Patent GB-1396335-A (GB)
Title: Digital synchronizer system for remotely synchronizing operation
IPC: G01V1/04
Filed: 1972-08-22
Abstract: 1396335 Selective signalling PETTY-RAY GEDPHYSICAL Inc 22 Aug 1972 [27 Aug 1971] 39006/72 Heading G4H A receiver of a synchronizing system demodulates a sequence of bits from phase-significant form under control of clock signals derived from the carrier used, and compares the sequence with a stored reference sequence to give an output signal on equality. In an encoder/transmitter (Fig. 2), a square wave from a divider 22 fed from a crystal oscillator 20 is amplified 24, converted to a sine wave by a filter 26, then back to a square wave with amplification at 28 to drive timing counters 32, 34 which, with the aid of timing circuits 66 controlled by counter 34, cause FETs 60, 62 fed with the true and inverse sine wave from 26 to supply to a radio transmitter 64, first a gap to permit the squelch circuits of the receivers to operate, then tones consisting of, in turn, a series of zeroes, then a sequence of ones and zeroes alternately, then eight bits from a shift register 42, four of them being fixed and the others entered by thumbwheel at 82. The true and inverse sine wave signals are used for 0 and 1 respectively, i.e. phasemodulation. As a modification, a wire or telephone line can be used for the transmission. At a typical receiver/decoder, e.g. in a lorry, (Fig. 3), an AGC amplifier 92 passes the signal to a frequency-doubler 93 which removes phase reversals. The series of zeroes is detected by a tone detector 96 using a phase-locked loop to control timing one-shots 98 &c. The output of frequency-doubler 93 also feeds a clock generator 102 including a phase-locked loop 104, and amplifier 106, which produces a clock signal via a divide-by-two circuit 100. The output of this is amplified and made bi-polar at 108 (left) and then used to demodulate the AGC amplifier 92 output in a multiplier 111 the output of which is filtered and amplified at 112 and controls the divide-by-two circuit 100 via a NAND 101 also enabled from 98, to phase the system properly in response to the series of zeroes. The demodulated signal from 111 also feeds a sync generator 116 using the sequence of alternate ones and zeroes and a phase-locked loop 118 and amplifier 120 to produce a sync reset pulse at the centre of each bit time (due to a 90 degree phase shift provided at 118), from a one-shot 122. A counter 126 is driven by the clock signal from amplifier 106, and reset repeatedly via a NAND controlled by one-shot 122 and a timing one-shot 132 controlled by timing one-shot 98 while the system is being phased properly as described. A NAND 128 decodes counter 126 to shift a shift register 130 to enter the eight bits of demodulated data from filter/amplifier 112, when a data one-shot 134 controlled by one-shot 132 enables it. A lock-out one-shot 140 inhibits re-triggering of the one-shot 98 by the tone detector 96 for a period. The shift register contents are compared 138 with 8 preset bits, 4 of them fixed and 4 entered by thumbwheel, to produce a control signal to actuate a seismic signal generator.
Patent GB-1179142-A (GB)
Title: Improvements in Article Handling Devices.
IPC: B65B23/14
Filed: 1967-08-25
Abstract: 1,179,142. Batching articles to be packaged; shoots. SCHWEIZERISCHE INDUSTRIEGES. 25 Aug., 1967 [29 Aug., 1966], No. 39208/67. Headings B8C and B8S. After a gate 4 at the end of a trough holding a line of flat articles has been opened to the position shown in Fig. 1 a reciprocating feeder 13 can push biscuits out of the trough to a position from which they are carried by a member 20. In the machine illustrated, biscuits 2 are pushed into a trough 3 by an endless belt conveyer 1. Each time the gate 4 is moved about a pivot 6 to its open position the feeder 13 operates several times to push several pairs of biscuits on to a plate 19 where the end of the resulting batch rests against a curved guide 18. As the carrier 20 moves from the position shown in full lines to that shown in broken lines in Fig. 1 the guide 18 moves with it so that, at the end of the upward stroke, when the support 19 is pivoted away, the batch of biscuits may fall under the control of a reciprocating member 40 into the carrier 20. After the carrier 20 has returned to the full line position it discharges the batch of biscuits by an opening movement of its bottom. When insufficient biscuits are left in the trough a pivoted portion 24 of the trough falls to operate mechanism preventing further feed of the biscuits from the trough. The opening or closing movement of the gate 4 may be in stages so that either the first or last set of biscuits delivered to the batch is smaller than the remaining sets.
Patent GB-959918-A (GB)
Title: Method and apparatus for drawing sheet glass
IPC: C03B15/18
Filed: 1962-10-17
Abstract: <PICT:0959918/C1/1> In the drawing upwardly by a tractive force of a continuous ribbon from a bath of molten glass which at a break will tend to fall back into the bath, a break in the ribbon is sensed and in response thereto, a further tractive force is applied to the ribbon between the break and the bath to prevent the falling of the ribbon into the bath.  A ribbon of glass 10 is drawn from a bath 12 of molten glass through a drawing chamber 20 by pairs of commonly driven rollers 32, 34, of which the rollers 32 are fixed and the rollers 34 are pivoted and counterweighted to engage the ribbon 10 to press it against the fixed roller 32.  In normal drawing, the lowermost four or five pairs of rollers are held out of operative position, to prevent moving of the ribbon, as by a latch 48 engaging a notch 56 in the lever arm 42 of a bell-crank 44 which supports the roller 34 and counterweight 46, the latch being held in operative position by a spring 52 and being latched manually or by a rope-pulley 60.  The sensing means comprises a roller 72, engaging and rotated by the ribbon 10, on one end of a rod 74 pivoted at 75, the constant speed of the ribbon maintaining the rod 74 level.  The rod is of aluminium or like conducting material and the outer end is arranged below contacts 76, 78 of a circuit 80 including a D.C. supply 82 and a relay 70, so that the circuit is completed by the rod 74 when a break in the glass occurs and the relay 70 is energized to withdraw the latch 48 of the lowermost roller 34, which is formed as a relay arm, so that the lowermost pair of rollers 32, 24 engage the ribbon 10 below the break to prevent the ribbon falling back into the bath 12.