baber/WOPTO huggingface dataset:
Patent GB-1396669-A (GB)
Title: Constant current regulating circuit
IPC: G05F3/22
Filed: 1973-09-17
Abstract: 1396669 Automatic current regulation MOTOROLA Inc 17 Sept 1973 [3 Oct 1972] 43438/73 Heading G3X A current source is connected in series with a P.V. junction device and a semiconductor device having unity gain so that a constant voltage is produced by means of a feedback path at the junction of the two devices. This voltage controls an output device which produces a regulated current. As shown, a supply terminal 16 is connected to a current source in the form of a field effect transistor 14 which may be replaced by a resistor. Current is thus supplied to a diode 26 whose dynamic admittance is equal to the transconductance of a transistor 34, so that the gain of the transistor is unity and the voltage at point 64 is held constant by the action of feedback transistor 36, regardless of changes in the current supplied by the FET 14. The constant voltage is used to control an output transistor 54 so that a regulated current is supplied to a load 20 which may be operational amplifier circuitry. The current regulator may be constructed as an integrated circuit. Variations in the voltage at point 64 caused by temperature changes are compensated by similar variations in the baseemitter voltage of transistor 54.
Patent GB-1424835-A (GB)
Title: Device for the supporting guiding and adjusting of a mobile seat
IPC: B60N2/07
Filed: 1973-09-17
Abstract: 1424835 Bearings A & M COUSIN ET CIE ETABS COUSIN FRERES 17 Sept 1973 [6 Oct 1972] 43463/73 Heading F2A [Also in Division A4]  The two complementary shaped channels 2, 3 of a seat slide define two parallel tracks 9, 10, track 9 containing two balls separated by a rod 14 and track 10 containing one ball 15 free to run between one end of the slide and a rod 16 connected to a mechanism for locking the two parts of the slide in an adjusted position. The locking mechanism comprises a crank 23 fixed to the rod 16 having an integral operating lever 16<SP>1</SP> the crank being spring biased into a position in which a step 24 formed on the crank engages one of a plurality of notches 25 in the channel 2. A single operating lever 16<SP>1</SP> suffices for two slides, the cranks 23 of which are interconnected by a rod 36. Distortion of channel 3 as a result of the absence of a ball at the other end of the track 10 is prevented by providing a roller 18 between the wings of a clevis 20 fixed to the channel 3 and provided with a band 21 of resiliently deformable material.
Patent GB-1106324-A (GB)
Title: A typewriter for typing on stiff documents
IPC: B41J13/12
Filed: 1966-09-28
Abstract: 1,106,324. Typewriters. A. BAGGENSTOS. 28 Sept., 1966 [28 Sept., 1965], No. 43466/66. Heading B6F. Machines for typing on stiff sheets, books &c.- A slide (15a), 15b, 16a, 16b carrying the stiff document vertically moves in a guide frame 13 attached to a carriage 11, 12 transversely movable on a support 3 which is pivotal with respect to the main typewriter at 6. Adjustments for impression, varying number of sheets.-The pivotal movement of the support 3 together with carriage, frame and document holding slide permits adjustment of the slide relative to the type levers 2a so that impression impact is correct for documents of different thicknesses. Pivoting is controlled by a knob 45, cam 49 follower or cam sensor 50 and a rail 4 biased by a leaf spring 52. Special holders.-The document 36, Fig. 4 (not shown), is .spring held in between two angle strips 23, 24 attached to the lower rail 16b of the document slide. On the outside of the angle 24 an elongated plate 32 is attached by a screw (34) and has, projecting through apertures in the angle 24, points 35 which grip and hold the document 36. Line-spacing.-The slide is line-spaced by pinions 17 engaging a rack formed in the slide. A spring-urged detent 54, fig. 5, locates the line-spaces accurately. Document guides.-A plate 39 extends across the guide frame 13, Fig. 2 (not shown), and carries a spring-urged bar 41 which holds the document close to the typewriter platen 19. The plate 39 also carries side guides 40.
Patent GB-872688-A (GB)
Title: Enamelled article and method of producing same
Inventor: LUSTER VAYLORD R
IPC: C23D3/00
Filed: 1959-12-22
Abstract: Ferrous metal is prepared for enamelling by being cleaned, heated in an oxidizing atmosphere for a period sufficient to oxidize 1-4 grams of base metal per square foot of surface, and then etched to remove oxide completely.  Heating may be effected at 1000 DEG -1300 DEG F.; etching may be effected using phosphoric, sulphuric, nitric or hydrochloric acid, or alternatively abrasive means; and a coating of nickel is preferably deposited on the etched surface.  As described in the example, a cold-rolled steel sheet is alkali cleaned, rinsed and dried, oxidized by heating at 1200 DEG F. in a commercial furnace, cooled, etched in phosphoric acid, rinsed, coated with nickel from an aqueous solution containing nickel sulphate, sodium hypophosphite and sodium acetate, rinsed and dried, and finally enamelled with a titanium opacified cover coat (see Group XXIII). U.S.A. Specification 2,532,283 is referred to.
Patent GB-1354796-A (GB)
Title: Control device for dictating equipment
IPC: H04M11/10
Filed: 1971-09-20
Abstract: 1354796 Remote dictating equipment INTERNATIONAL BUSINESS MACHINES CORP 20 Sept 1971 [24 Sept 1970] 43659/71 Heading H4K A dictating machine is controlled by dial pulses to provide the various operational requirements where a control circuit is responsive to different count outputs of a counter to generate the different control signals. The control circuit includes an interlocking logic circuit to prevent control signals being generated for specific count outputs of the counter. As shown the dictating unit DU is connected through the control device CD to a telephone line A<SP>1</SP> which is an extension termination of a PBX and can be dialled in a normal way by any other subscriber on the PBX. After a connection has been established further dialling pulses, which are able to pass through the exchange, control the dictating unit. To avoid erroneous operation the first further pulse is used to set a flip-flop in pulse detector 14 and a second pulse must be received within 80-120 msec. to be counted. Valid pulses are counted in counter 16 and the respective energized output passes through logic circuit 10 to energize one of the function relays on lines M1-M5. The operational state of the dictation unit is signalled to the logic circuit through M8-M10. Tone signals to the dictator emanate from the 1000 Hz generator at either a strong or muted level. The tones are only cut off during recording if the voice signal level is high enough to operate voice operated relay VOR. Additionally the unit is automatically backspaced if no voice signal is received thereby avoiding empty sections on the recording belt. A timing element 28 operates to shut the unit down if no operations occur within a period of 3 minutes. Further dialling pulses can also be used to make connection with the attendant who uses handset HA and also to release this connection.
Patent GB-1464724-A (GB)
Title: Fluid flow control valves
IPC: F16K27/12
Filed: 1974-01-29
Abstract: 1464724 Valves BARKING BRASSWARE CO Ltd 29 Jan 1974 [7 Feb 1973] 43715/76 Divided out of 1464722 Heading F2V The description is similar to that of Specification 1,464,722, but the claims are directed to the coupling of the intermediate or cover member to the body.
Patent GB-905221-A (GB)
Title: Improvements in gathering and pleating tapes for curtains
IPC: A47H13/16
Filed: 1959-12-23
Abstract: 905,221. Suspending curtains. BOULET, R. E. Dec. 23, 1959 [Dec. 26, 1958; Feb. 14, 1959], No. 43751/59. Class 52 (5). A pleating or gathering tape has at least one longitudinally extending sleeve 11 integral therewith, longitudinal apertures 12, 12<SP>1</SP> in pairs being provided along the length of the sleeve and a drawstring 15 being threaded at least through some of the apertures. As shown in Fig. 6, the pairs of apertures are arranged at equidistant intervals longitudinally of the sleeve. Two sleeves 11 may be provided.
Patent GB-1445128-A (GB)
Title: Building member
IPC: E04D13/03
Filed: 1973-09-18
Abstract: 1445128 Moulding a skylight RCA CORPORATION 18 Sept 1973 [25 Sept 1972] 43754/73 Heading B5A [Also in Divisions A5 and E1] To form a panel, a planar sheet of hot PVC is clamped at its edges in a frame, elongate members placed across one surface of the sheet and gas pressure applied to the other surface to distend the sheet. A sheet with troughs 12 and rounded portions 16 is thus formed.
Patent GB-1246870-A (GB)
Title: Verification apparatus
IPC: G06F11/10
Filed: 1969-09-04
Abstract: 1,246,870. Verification apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 4 Sept., 1969 [10 Sept., 1968], No. 43760/69. Heading G4A. Verification apparatus comprises input means for entering digits into a plurality of storage locations, a variable programming unit for controlling the read out of digits contained by selected storage locations and the order in which they are read out, an arithmetic unit to operate serially upon the digits by allocating a weighting factor to each digit corresponding to its position in the order, forming a sum of digit-weighting-factor products and a remainder modulo X, and an error indicator to indicate when the remainder is not a predetermined value. Digits, including a check digit, stored in columns of a keyboard (1-out-of-ten form) are read out in turn by a column counter energizing column select lines in turn via a programmer which by pre-plugging (or insertion of an etched circuit card) and mode control signals selects which columns (digits) are to be read out and in what order. Each digit is converted to binary-coded-form by a first set of OR gates, and (in parallel) converted to the binary-coded form of 0, 2, 4, 6, 8, 1, 3, 5, 7, 9 in the case of the digit values 0-9 respectively by a second set of OR gates. For mod ten operation, the first stage of a weight select counter, incremented by each pulse on a column select line, selects the two sets of OR gates alternately, the gate outputs being serialized and accumulated in a 4-bit shift register using a serial binary full adder. Thus the digits are weighted 1,2,1,2... in the order of selection except that an extra 1 is added to digits of value 5 and above, and the weighted digits are taken mod ten. Whenever the register overflows (reaches 16), the carry-out is dropped and advance of the column counter is inhibited while a corrective 6 is added into the shift register. Finally, a ten decoder detects whether the shift register holds zero mod ten and if not an error lamp is lit. For mod eleven operation, the digits are weighted 1-7, then 2-7 repetitively, in the order of selection. Thus only the first digit (which is the check digit) is weighted 1. The first set of OR gates above is used all the time and the weighting is achieved by applying the digit to the adder a number of times equal to its weight. The weight select counter, incremented as above, returns to a count of 2 on reaching a count of 7. For each digit, the 7-complement of the count is copied into a scale-of-7 multiply counter this being incremented for each application of the digit to the adder, these applications being stopped on a count of 7. Operation is otherwise the same as the mod ten case except that 5, not 6, is added on shift register overflow, and the final check is for zero mod eleven, not zero mod ten. As a modification, the keyboard may store the information in binary-coded-decimal form.
Patent GB-1245792-A (GB)
Title: Improvements in or relating to lubricating systems
Inventor: GLEASON QUIN REX
IPC: F16N13/22
Filed: 1968-09-14
Abstract: 1,245,792. Hydraulic reciprocating pumps. MASTER PNEUMATIC-DETROIT Inc. Sept. 14, 1968, No.43846/68. Heading F1A. [Also in Division F2A] A lubricating system for intermittently supplying lubricant to a plurality of use points has several pumps 26 connected to a reservoir 136 through a filter (144) Fig.9 (not shown). Each pump has a lubricant passage 212 which receives lubricant under gravity from the reservoir. A piston 224 is provided in a cylinder to which pressurized fluid is supplied via duct 34. The piston carries a rod 226 which is movable across the lubricant passage 212. The passage has an outlet 210 aligned with the rod. The rod is urged away from the outlet by resilient means 236 but when fluid is admitted to the cylinder 248, the rod is forced into the outlet and causes the lubricant contained therein to be expelled through the non-return valve 206 and the passage 205 to a use point. The pump may be operated manually (e.g. for priming the system) by removing the cap 264 and depressing the button 262 which acts on the rod 254 to operate the pistonrod 226. The air to actuate the pumps is supplied from a device 28 Fig. 1. Air is supplied from a high-pressure source via a duct 32, and passes to the pump through a valve and the duct 34. The valve is actuated by a rod 80 which engages a cam 88. The frequency with which the pump operates depends on the shape of the cam which determines the opening of the valve. The cam 88 (and cams 86 and 90 associated with other lubricant pumps) is rotated by pulses of pressurized fluid acting on a piston 46 which acts to rotate the shaft carrying the cam. The reciprocating movement of the piston is converted to rotational movement by the pin 120 acting on the groove 118 in the sleeve 116. Rotation of the shaft is restricted to one direction by springs 122, 126.
Patent GB-1276506-A (GB)
Title: Improvements relating to automatic battery charging apparatus
Inventor: CALE PHILIP EUSTACE
IPC: H02J7/00
Filed: 1968-09-27
Abstract: 1276506 Battery charging systems ALKALINE BATTERIES Ltd 25 Sept 1969 [27 Sept 1968] 43949/71 Divided out of 1276505 Heading H2H A battery charging apparatus for charging a battery of the kind in which at or near the end of the charge there is a fall of voltage includes means responsive to the fall of battery voltage while on charge for initiating action to terminate the charge or a phase of it. A battery 10 of the sealed nickel cadmium type is charged from a supply 12, this type of battery exhibiting a rise in temperature and a fall in terminal voltage when it is fully charged. At the same time a reference cell 20 is being charged over a circuit which includes a diode 45, transistor 15 and a transistor 40 which together with a resistor 41 forms a constant current device. The transistor 15 with a transistor 16 forms a device for comparing the voltage of the battery 10 with that of the cell 20 since the bases of these two transistors are conditioned by the battery and the cell voltages, respectively. As soon as the voltage of the reference cell 20 exceeds a certain value relatively to that of the main battery 10 a transistor 28 becomes conductive whereupon the transistor 16 becomes more conductive than the transistor 15 so that the current in this transistor falls and at a certain point no further charging current flows in the cell 20. When the main battery 10 becomes fully charged the fall in its terminal voltage causes the current in the transistor 15 to fall still further whereupon a transistor 47 becomes conductive which causes transistors 51, 55 to become conductive to energize a relay 30 to open contact 30/1 and terminate the charging process. The reference cell can then be discharged by closing a switch 60 which may occur automatically at the end of the charging process. Alternatively, energization of the relay 30 may be arranged to start a timer so that the charging process is terminated a timed period after the relay has been energized.
Patent GB-1102209-A (GB)
Title: Suspension polymerization
Inventor: LOWELL ARTHUR IRWIN
IPC: C08F2/18
Filed: 1966-10-04
Abstract: A water-insoluble vinyl polymer is formed by polymerizing at least one water-insoluble vinyl monomer in aqueous suspension containing undissolved phosphate, the phosphate (e.g. of calcium) being one requiring more than 100 parts by weight of water to dissolve one part thereof, and adding to the suspension a water-soluble hydroperoxide (e.g. 3-50 p.p.m. by weight) and a water-soluble metal formaldehyde sulphoxylate (e.g. 5-120 p.p.m.).  The monomer may be styrene and it may be polymerized in an aqueous suspension containing tri-sodium phosphate, disodium hydrogen phosphate and calcium chloride (which react to form a calcium phosphate in situ), white oil, butyl stearate, stearic acid, butylated hydroxy toluene, benzoyl peroxide, t-butyl perbenzoate, t-butyl hydroperoxide, sodium formaldehyde sulphoxylate and an alkyl aryl sulphonate.  The polymer may be obtained in bead form.
Patent GB-918558-A (GB)
Title: Improvements relating to shelving
Inventor: THOMPSON STANLEY ADCOCK
IPC: A47B57/42
Filed: 1960-12-24
Abstract: 918,558. Shelving. PARNALL & CO. Ltd., GEORGE, Dec. 5, 1961 [Dec. 24, 1960], No. 44354/60 Class 52 (1). A pillar for use in shelving comprises two similar extruded metal sections A, B each formed with longitudinally extending, channel-section flanges 4, 5 having interlocking engagement with the flanges of the other section, and each section having a longitudinally extending series of slots 6 pierced therethrough. The sections A, B are interengaged by relative endwise sliding and may be subsequently welded along adjoining edges to form a pillar which receives in the slots 6 hooklike lugs of shelf brackets.
Patent GB-1118629-A (GB)
Title: Treatment of coal
Inventor: HAZELDINE ROBERT NEVILLE
IPC: C10G1/04
Filed: 1964-10-30
Abstract: Coal, or a coal extract, is treated with anhydrous HF.  The coal should be in finely divided state, and preferred treatment conditions are: temperature 100 DEG  to 200 DEG  C., pressure 80 to 120 atmospheres, time at least 1 hour, e.g. 15 to 20 hours, and the treatment may be carried out in an atmosphere of oxygen.  At least an equal weight of HF is used, and 10 to 20 times the weight of the coal may be used.  Two main embodiments are described: (a) coal is treated as described above and either the solid residue is removed from the solution or the HF is evaporated, the solid residue being subjected to a conventional extraction with a non-aqueous solvent, e.g. cyclohexane; (b) coal is given a conventional extraction treatment with a non-aqueous solvent which is then evaporated, and the coal extract is dissolved in HF.  Four specific examples are described.
Patent GB-1521300-A (GB)
Title: Particle study apparatus
IPC: G01N15/12
Filed: 1975-10-28
Abstract: 1521300 Analyzing particles electrically COULTER ELECTRONICS Ltd 28 Oct 1975 [4 Nov 1974] 44423/75 Heading G1N In order to remove debris clogging the aperture 14 of a particle detector pulses are applied to electrodes 16, 18, positioned on either side of the aperture from pulse generator 28. The energy of the pulses causes the fluid suspension 26 in the aperture to vapourize and the expansion of the gas so formed forces the debris out of the aperture. The pulses from generator 28 are in the form of repetitive pulses, pulse trains or sequence of pulse trains and they may be uni-directional pulses, modulated high frequency waves, or bi-polar pulses or bursts of high frequency the latter two avoiding polarization effects. Electrodes 16 and 18 are also connected to counting and sizing analyzer 20 via switch 25a which is gauged together with switch 25b. In operation when a clogged aperture is indicated switch 25a is opened to disconnect analyzer 20 and switch 25b closed to connect the generator 28 to the electrodes. The switches may be controlled manually or automatically by control circuit 34.
Patent GB-945956-A (GB)
Title: Improvements in two-way valveless centrifugal pump
IPC: F04D29/50
Filed: 1960-12-28
Abstract: 945,956. Dish washing machines. GENERAL ELECTRIC CO. Dec. 28, 1960 [Dec. 30, 1959], No. 44437/60. Heading A4F. [Also in Division F1] A pump 10 is mounted at the base of tub 12 of a dishwasher. A reversible motor 16 drives the pump impeller 21 and a wash impeller 14. On clockwise rotation of shaft 15 (viewed as in Fig. 2) the wash impeller 14 impels some of the water in sump 13 upwardly into the tub and the pump impeller 21 draws water from sump 13, through holes 39 and opening 38 of a conical pump inlet flow conditioner 37. Water spills over a dam 32 into a sump 30, causing a local area of low pressure which closes a discharge port 28, and flows against a dam 31 to be directed through a port 27 to a spray nozzle (not shown), at the upper portion of tub 12, for rinsing the dishes in the top rack. On counterclockwise rotation of shaft 15, water is drawn by the wash impeller down through a drain opening 17 and into the pump chamber whence it is pumped by impeller 21 through port 28 to a sewer. The two discharge ports may be positioned respectively above and below the impeller. Instead of extending approximately radially, the discharge ports may extend vertically downwards or tangentially to the cylindrical pump casing. The impeller may be inverted with the discharge ports located above it.
Patent GB-1284117-A (GB)
Title: Improvements in or relating to memory read-out detectors
IPC: G06F11/00
Filed: 1969-09-09
Abstract: 1284117 Error detection or pulse circuits HONEYWELL Inc 9 Sept 1969 [28 Oct 1968] 44457/69 Heading H3P [Also in Division G4] An error detecting apparatus comprises means 201 for producing digital signals, storage means 204, 206 for receiving the signals and having a reset state and at least second and third further states, and checking means comprising a first means 212 for producing an error signal if the storage means are not in the reset state after a reset signal but before receiving said signals, and second means 238 for producing an error signal if the storage means are in the reset state after receiving said signals. The read pulses pass to a digital computer via lines 248, 250. A read only memory is formed of ferrite cores using two cores 224, 226 per bit, the one core always being in an opposite state to the other. A drive line 202 threads the two cores and sense lines 200 feed a differential amplifier 228 to give the output 221, 223 indicated (or vice versa, depending on the core state) when line 202 is pulsed. The output is connected to flip-flop 204, which is only set by a pulse 221, and a flip-flop 206, which is only set by a pulse 223. Operation.-The flip-flops 204, 206 are reset to binary 1 by means 208, and a first error test checks whether this has been effected by means of an AND gate 212 which is only enabled if both flip-flops are reset and a first signal generator 214 pulses at that time. Then the drive line 202 is pulsed by timing unit 210 and signals 221, 223 are generated. One flip-flop is set by signal 221 and immediately after the other flip-flop is inhibited by line 232 or 234. The second error test checks whether signal 221 has been read using AND gate 238 which is pulsed at that time by generator 236. If 221 has been read, line 242 will read 0 and line 244 will read 1 and no error signal 246 will be sent. If, however the signal 221 has not been read, an error signal 246 will be sent since line 242 will read 1. If this happens pulse 223 will set one flip-flop but, by this time, the error signal will have been sent. A number of such bits are read in parallel using one source of clock pulses. Any number of storage states greater that two may be used for a number of lines or one line having a number of signals.