baber/WOPTO huggingface dataset:
Patent GB-1274321-A (GB)
Title: Improvements in and relating to cameras
IPC: G03B7/12
Filed: 1969-06-02
Abstract: 1,274,321. Photographic cameras. AGFAGEVAERT A.G. June 2, 1969 [June 1, 1968], No. 27804/69. Heading G2A. A camera has a diaphragm which is automatically adjusted within a predetermined aperture range when the illumination exceeds a transition value and which is fixed to a value intermediate the limits of said range, when the illumination is below the transition value; a photo-electrically controlled shutter timing circuit being adjusted by compensating means when the diaphragm is fixed. As shown, a photo-electric element 23 is connected to an instrument 2 to control a pointer 3 which is movable in a slot 4. If the illumination exceeds the transition value, pointer 3 is located beneath a stepped part 7 of a probe 6. On depressing camera release 14, probe 6 is moved downwards by a spring 11 until it abuts pointer 3. During this movement, the probe adjusts the diaphragm. On complete depression of release 14, a cam 28 thereon closes switch contacts 25a, c coupling a capacitor 26 with the element 23 and resistors 22, 24 to form an R.C. circuit which triggers the shutter timing circuit 29. If the illumination is below the transition value, the pointer 3 swings left and is abutted by a part 8 of probe 6 to set the diaphragm to the intermediate fixed value. The pressure of part 8 closes switch contacts 20a, b which cuts resistors 22, 24 out of the R.C. circuit to adjust the timing circuit. In another embodiment, Fig. 2 (not shown), when the illumination exceeds the transition value, a stepped part (41) of a conductive probe (39) presses a conductive pointer (37) against a resistor (43), which is coupled with a capacitor (54) or camera release. This provides an R.C. circuit whose resistance depends on the pointers position and which triggers a shutter timing circuit (61) accordingly. When the pointer is in the "fixed aperture" position it is disconnected from the resistor (43) and the shutter timing circuit (61) is controlled by an R.C. circuit comprising the capacitor (54) and photo-electric element (55); resistors (55, 56) being switched out to adjust the timing circuit.
Patent GB-479833-A (GB)
Title: A stand for bicycles
IPC: B62H1/02
Filed: 1937-10-13
Abstract: 479,833. Bicycle supports. GRAF, E. Oct. 13, 1937, No. 27816. [Class 136 (i)] A stand for bicycles consists of two members 1, 2 pivoted together at 12 and connected together by a tension spring 8, which is accommodated in a channel 7 in the two members the member 2 being provided with an eye 17 adapted to register with an eye 15 on the member 1 when the member 2 is lowered to the operative position, the eyes then receiving a locking-device to prevent the bicycle being used. The stand is secured to the chain stays by a screw stud 4 on the member 1, a clamping- plate 6, and a nut 5. In use, the forked member 2 is inclined forwardly, the controlling- spring 8 being stretched to its maximum as the member 2 passes the position of alignment with the member 1. In the operative position, a projection 14 on the member 2 engages a projection 13 on the member 1, while in the raised position, the member 2 abuts against projections 11. At the upper end of the channel 7 is an aperture 19 for the passage of the brake transmission rod or cable. The projecting part of the stud 4 may be apertured to receive a locking-device to prevent removal of the nut 5.
Patent GB-699217-A (GB)
Title: Improved device for indicating or recording the roughnesses or undulations of surfaces
IPC: C08B3/10
Filed: 1951-11-28
Abstract: 699,217. Measuring surface roughness. LEITZ GES., E. Nov. 28, 1951 (Dec. 4, 1950], No. 27919/51. Class 106 (ii). Apparatus for indicating surface roughness comprises a fixed head 1 in which a spindle 2 is guided and caused to oscillate by an oscillator (not shown) in the direction of the double arrow 3. To the head 1 a flat spring 5 is fixed by the bracket 4 to form the fulcrum of lever. At one end of the lever 6 a sensing needle 7 is fixed, the other end of the lever 6 being connected by a further flat spring 8 to the spindle 2. In use oscillations are transmitted over the spindle 2, the spring 8, the lever 6 to the sensing needle 7 which is traversed over the surface to be tested in contact therewith. Irregularities in the surface are sensed by the needle 7 which correspondingly reciprocates, the reciprocations being superimposed on the oscillations and being transmitted over the lever 6, spring 8 and the spindle 2 to the indicating device (not shown).
Patent GB-188182-A (GB)
Title: Improvements in engineers' ring gauges
IPC: G01B3/40
Filed: 1921-10-21
Abstract: 188,182. Coventry Gauge & Tool Co., Ltd., Harley, H. H., Barker, H., and Hewitt, A. Oct. 21, 1921. Linear-dimension gauges;; surface and outline gauges.-A ring thread gauge comprises a body 2 having a diametral hole in which are inserted two gauge members 4, the adjoining ends of which are semicircularly recessed and threaded to provide the complete ring thread gauge. The members 4 are locked in position by screws 8, and the sides of the body are dished at 11 and bored at 10 in order that the gauge may be used close up to a shoulder. For holes exceeding # in. diameter the body is made in two parts 2, 14, Fig. 4, the members 4 being placed in a diametral slot as before and holes being drilled at each end for the screws 8. The members 4 have bosses 16 so that the gauge may be used up against a shoulder. In a modification, Fig. 6, the members 4 are arranged without the body 2 as before and the whole enclosed within a cage 19 closed on its open side by a plate 21 locked by screws 22. The sides of the cage are dished and recessed. In a further modification, Fig. 8, the members 4 are formed with flanges 27, sufficiently clearance being left to allow the members 4 to be positioned without a diametral slot 25 of the disc 2. In each case when wear of the gauge takes place, the abutting surfaces of the members 4 are ground up and the gauge members relapped or retapped. More than two abutting members 4 may be used and the invention also applies to plain ring gauges.
Patent GB-1036000-A (GB)
Title: Devices for taking and containing blood samples
Inventor: TATTERSALL KEITH
IPC: A61B5/15
Filed: 1963-07-15
Abstract: 1, 036, 000. Blood sampling apparatus. S. & R.J. EVERETT & CO., Ltd. Oct. 15, 1964 [July 15, 1963], No. 27940/63. Heading A5R. A device for taking blood samples and of the kind comprizing an evacuated container 9 closed with a puncturable bung 7 and provided with a hollow hypodermic needle 18 able to be moved to cause the puncture, is characterized in that the bung is secured to a tubular member 12 which surrounds the needle with clearance, and a hub member 15 in which the needle is secured may be screwed on the tubular member to cause the needle to pierce the bung. The container 9 is of glass or polystyrene and may contain a small quantity of an anti-coagulant. The member 12 is formed with an external screw-thread formation 20 which mates with a groove on the hub 15. The bung 7 is of rubber and reseals itself when the needle has been withdrawn. In a modification, a pin on the member 12 screws into a helical slot formed in the hub 15. A cap covers the needle prior to use and a clip around the neck 32 prevents unwanted displacement of the hub and needle.
Patent GB-1173267-A (GB)
Title: Cytologic Endocrine Evaluatin Device
Inventor: SCHEIDT ROBERT ANTHONY
IPC: A61B10/00
Filed: 1968-06-12
Abstract: 1,173,267. Instrument for biopsy. R. A. SCHEIDT. 12 June, 1968, No. 27977/68. Heading A5R. An instrument for collecting surface tissue cells from vaginal walls comprises a tube 5 having a closed end portion 7 adapted to hold a quantity of specimen suspending solution, said tube having at least one opening 8 through its side walls 6 at a distance from the closed end 7, and through which, in use, the adjacent portion of the vaginal wall protrudes, slideable plunger means 11 in the tube, and ridge means 14 on the plunger means to move past the opening in the side wall and into the specimen suspending solution, whereby, in use, the tissue cells are scraped off the inwardly protruding vaginal wall and deposited in the solution.
Patent GB-392063-A (GB)
Title: Improvement in machines for extracting threads from woven fabrics
IPC: D05B3/04
Filed: 1932-10-07
Abstract: 392,063. Finishing fabrics. PRAZAK, E., 500, Monroe Avenue, Elizabeth, New Jersey, U.S.A. Oct. 7, 1932, No. 28001. [Class 42 (i).] Open-work effects, producing.-The carriage 26 carrying the cutter 25 for removing the ends of the threads displaced by the blade 21 is reciprocated in a groove 16 in the throat plate 14 by a crank 42 and link 43, being pressed upwards towards the adjustable top cutter 20 by resilient guiding fingers 33, 34. These fingers can be turned into the position shown in dotted lines in Fig. 5 to permit of the introduction of the carriage into the slot 16, the plate 14 then being dropped into a recess in the base-plate 1 with the link 43 in engagement with the crank 42. A spring 47 keeps these parts normally in engagement. The lower cutter has an inclined cutting edge and a lip 30 which is always in contact with the upper cutter.
Patent GB-341459-A (GB)
Title: Improvements in laminated spring couplings
IPC: B60G7/00
Filed: 1929-09-16
Abstract: 341,459. Road vehicle springs. STIRLING, C., 16, Bents Drive, Ecclesall, and UNITED STEEL COS., Ltd., Westbourne Road, both in Sheffield. Sept. 16, 1929, No. 28013. [Classes 108 (ii) and 108 (iii).] In vehicle spring-mountings of the kind in which lateral tilting of the frame relatively to the axle may take place without twisting the leaves of the springs, the ends of the springs are connected to the frame or axle by cylindrical bearing surfaces adapted to allow rotational movement of the spring about either or both of two axes. In the construction shown in Figs. 1 and 2, the ends of several of the leaves 18, 19, 20 are mounted in a two-part cylinder 16, 17 having its axis arranged in the direction of the length of the spring. The cylinder 16, 17 is further mounted in a two-part cylinder 22a, 22b which is rotatable in the casing 13 about a transverse horizontal axis. One of the leaves 20 of the spring is formed with an upward circular projection 20a which engages in the top half 17 of the inner cylinder and thus allows movement of the spring about a vertical axis. The whole assembly may slide laterally in the casing 13 within limits set by the end cover-plate 13a. The recess in the casing 13 and the recesses in the part 22a of the outer cylinder through which the spring passes are shaped to allow the necessary pivotal movements. The half-cylinder 22b is recessed at 22c to allow end play of the leaves 18, 19. In modifications the inner cylinder 16, 17 is mounted in a ring which is carried by trunnions. Instead of the projection 20a, the end of the leaf 20 may be recessed or perforated and engaged by a spigot projecting from one of the halves of the cylinder 16, 17. In a further modification the spigot connection 20a is dispensed with and the leaves are free to slide endwise in the cylinder 16, 17. One of the semi-cylindrical bearing surfaces may be formed integral with or secured to one of the leaves.
Patent GB-712679-A (GB)
Title: Improvements in or relating to tethers for bulls and other livestock
IPC: A01K1/04
Filed: 1952-11-07
Abstract: 712,679. Tethering animals ; ground anchors. TAYLOR, J. H. Feb. 18, 1953 [Nov. 7, 1952], No. 28095/52. Classes 45 and 62 In order to prevent a tethered animal levering the spiked tether described in Specification 623,260 from the ground, the movable handle 7 has a cross bar 11 which lies parallel to the ground when the tether is in the tethering position. The handle is normally locked in substantial alignment with the tethering tube 10 but may be displaced into an angular position when the tether is to be lifted and moved. As shown in Fig. 3, the handle is pivoted on a quadrant 5 which is welded to the axle box 4 and has locating notches 5a for a spring-pressed locking plunger 13 which is released by a pull rod 15. The handle may alternatively take the form of a triangular frame 12. In a similar arrangement, Figs. and 2 (not shown), a drop-in pin is employed instead of the locking plunger. An alternative arrangement, Fig. 5, comprises a triangular frame 16 one leg 16a of which extends beyond the apex and is rotatably mounted in a socket 17 obliquely fitted to the axle box by a plate 18. By rotating the frame through 180 degrees it can take up either an angular-lifting or an alignment position, being then locked in place by a drop-in pin 19.
Patent GB-716598-A (GB)
Title: Derivatives of ethylene diamine
Filed: 1951-07-02
Abstract: The invention comprises ethylenediamine diformate, the preparation thereof by mixing ethylene diamine with concentrated formic acid in acetone, and the preparation of N-mono- and N : N1-di-substituted ethylenediamines therefrom by reaction with an aldehyde or ketone in a solvent (e.g. an alcohol or formic acid), followed by hydrolysis of the initial reaction product, or by reaction with formaldehyde and a compound containing an active hydrogen atom.  In examples (1) crude ethylene diamine diluted with acetone is added dropwise to a cooled and stirred mixture of 88-90 per cent formic acid and acetone, whereby the diformate is precipitated; (2) ethylenediamine diformate is refluxed with two molecular proportions piperonal in formic acid to produce N : N1-dipiperonylethylenediamine (isolated at its dihydrochloride, from which the dinitrate and dipicrate may be prepared); (3) p-nitrobenzaldehyde similarly yields N : N1-bis-(p-nitrobenzyl)-ethylenediamine (as dihydrochloride, from which the dinitrate may be prepared); (4) ethylenediamine diformate is heated with two molecular proportions each of aqueous formaldehyde and thiophene to form N : N1-bis-(2-thenyl)-ethylenediamine; the thiophene may be replaced by cyclohexanone, 2-, 3- or 4-methylcyclohexanone, 4 - methoxycyclohexanone, cyclopentanone, 2 - methylthiophene, isoquinoline, 3 - methylisoquinoline or quinaldine. Additional products specified are N - undecyl -, N - heptyl -, N - (3 : 5 : 5 - trimethylhexyl) -, N - vanillyl -, N : N1 - di - n - heptyl -, N : N1 - di - undecyl -, N : N1 - dicyclopentyl -, N : N1 - di - (4 - methoxycyclohexyl)-and N : N1 - divanillyl - ethylenediamine. Specification 716,556 is referred to.
Patent GB-1508854-A (GB)
Title: Data handling system
IPC: G06F15/16
Filed: 1975-07-04
Abstract: 1508854 Data transmission INTERNATIONAL BUSINESS MACHINES CORP 4 July 1975 28183/75 Addition to 1365838 Heading H4P [Also in Division G4) A data handling system includes a number of data handling devices 3 each arranged to communicate with a common controller 1 on an interrupt basis by issuing requests for service over a common interrupt line 6 associated with a common parallel bus 2, each device having an assigned interrupt number 4 and being arranged, in response to an invitation from the controller, made in response to a detected request, to compete for service by presenting its interrupt number in parallel to a respective gating circuit 5, the gating circuits being connected to the bus and arranged to interact via the bus to place the highest priority interrupt number presented onto the bus. The arrangement applies the concept described in parent Specification, which uses a serial bus, to a parallel bus. As described any handling device 3 requiring service sets its latch 7 and applies a signal via line 6 to the central controller 1. When the controller is free it supplies an instruction via parallel bus 2 to the devices 3 in response to which each device requiring service supplies its priority number from a register 4 or from a hard wired arrangement to the corresponding gating network 5. The gating networks interact via bus 2 so that only the highest priority number is applied to the bus. After issuing the instruction the central controller waits for a period sufficient to allow the gating networks to stabilize and then services the highest priority device. The priority numbers may also form the addresses of the devices 3 which may be processors competing for a shared memory or peripherals communicating with a central processor. More than one priority order may be provided, each device 3 having two or more priority numbers, each number being associated with a respective line 6. The controller decides the priority order required and responds to the appropriate line 6 to issue an instruction to cause the appropriate priority number to be emitted. The specification describes two gating networks 5, Figs. 2 and 3 (not shown), one of which stabilizes quicker than the other.
Patent GB-1084742-A (GB)
Title: Improvements in or relating to the manufacture of 2,3-dichloro-1,3-butadiene
Inventor: GIBBS HENRY NORMAN
IPC: C07C17/25
Filed: 1964-07-08
Abstract: 2,3-Dichloro-1: 3-butadiene is manufactured by dehydrochlorinating 1,2,3,4-tetrachloro-butane with a dehydrochlorinating agent, which comprises an alkali metal hydroxide or an alkali metal alkoxide having not more than two carbon atoms in the molecule or a mixture thereof, in the presence of an inert solvent for at least one of the reactants at a temperature below 20 DEG  C. under conditions in which the molar ratio of dehydrochlorinating agent to 1,2,3,4-tetrachlorobutane never ex ceeds two, and then separating the 2,3 di chloro -1 : 3-butadiene from the reaction mix ture by fractional distillation.
Patent GB-171373-A (GB)
Title: A new or improved machine for treating photographic moving-picture films
IPC: G03D3/13
Filed: 1921-10-24
Abstract: 171,373. Sen-Jacq Film Print Co., (Assignees of Sentou, C. A. and Jacquet, E.). Nov. 8, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Continuous apparatus for developing and like treatment.-In apparatus for developing and otherwise treating films, a film is drawn through the tanks by friction feed-rollers 7, 11, Fig. 1, and passes over smooth truncated rollers 12 also driven at a constant speed from the main driving shaft. The film is fed through the tanks in loops by suspended rollers 14 and means are provided to vary the speed of the film over the rollers 12 in order to maintain substantially constant lengths of loops in the tanks. This is done by controlling the position of the film on the truncated cones 12. Each roller 14 is suspended from a balanced arm 19, Fig. 5, freely mounted on the shaft of the cone, and the arm 19 has an arc, shaped cam 17 which engages the edge of the film and controls its position on the cone 12, the film always tending to ride towards the larger base of the cone.
Patent GB-406232-A (GB)
Title: Improvements in or relating to signals, more particularly for railways
IPC: B61L9/02
Filed: 1933-10-12
Abstract: 406,232. Supporting signal lamps. PINTSCH AKT.-GES.,J., 71, Andreasstrasse, Berlin. Oct. 12, 1933, No. 28266. Convention date, Oct. 19, 1932. [Class 75 (iii).] A raisable slide 2 on a signal post carries a plurality of signal lamps 4 and a gas container 1 which supplies propane gas to the lamps through a single regulator 3.
Patent GB-328186-A (GB)
Title: Facing head for horizontal boring, drilling and milling machines
IPC: B23B29/034
Filed: 1929-09-18
Abstract: 328,186. Escher, A. Sept. 18, 1929. Turning.-Rotary facing-heads for horizontal boring, drilling and milling machines are provided with a disengaging rack and pinion feed. The motion is derived from a gear on the spindle through the gearing a, b and worm gearing d to the rack pinions e. At the end of the travel of the facing-slide the last tooth l, Fig. 4, passes out of mesh with the pinion, a screw head h, Fig. 2, engaging in a slot i preventing further movement of the slide. When the pinion e reverses a tooth on a pivoted spring controlled. member k secures re-engagement of the rack without shock.
Patent GB-1436012-A (GB)
Title: Synchronizing means for sequential fuel injection
IPC: H03K17/28
Filed: 1973-06-14
Abstract: 1436012 Electronic fuel injection systems for IC engines INTERNATIONAL HARVESTER CO 14 June 1973 [21 June 1972] 28298/73 Heading G3N In an electronic fuel injection system for an engine, means are responsive to sequencing signals supplied in synchronism to the intake strokes of the engine and to timing signals representing the desired duration of injection to cause the acuators of fuel injection valves to be energised in sequence, the sequencing signals being derived from a circuit which is supplied with triggering pulses from the engine ignition system in predetermined phase relation to each and every power stroke of the engine and a reset pulse from the ignition distributor in predetermined relation to the power stoke of a predetermined one of the engine cylinders. As shown, a sequence circuit 25 comprised of delay multi-vibrators 54, 56, a 2-bit counter 53, a de-coder 52 and AND gates 47-50, receives triggering pulses from the ignition coil 27 via multivibrator 54, and reset pulses from the ignition distributor 26 via multi-vibrator 56. A flip-flop 51 is set by each triggering pulse from multi-vibrator 54 and is reset after a variable time interval determined by a timer 31 which receives the analogue output signal of a computer 32 which receives signals dependent upon engine speed, intake air pressure, air temperature and coolant temperature, and is also connected to switches 33, 34 associated with the throttle. Acceleration and rate of change of intake air pressure may be taken into account. The output of flip-flop 51 is connected to an input of each AND gate 47-50, the other inputs of the AND gates being enabled in sequence determined by the counter 53 and de-coder 52 The outputs of the AND gates cause energization of the actuators of the injection valves V 1 -V 4  via driver circuits 41-44. In a practical embodiment, Fig. 3 (not shown), the function of the de-coder 52 and AND gates 47-50 is performed by three-input NOR gates, and the counter 53 is in the form of two flip-flops. Two inputs of each NOR gate are connected to the corresponding outputs of the two flip-flops, the third input of each NOR gate being connected to the output of flip-flop 51. Details of the multi-vibrators 54, 56, the flipflop 51 and the ignition circuit and distributor are described with references to Fig. 5 (not shown).