baber/WOPTO huggingface dataset:
Patent GB-285852-A (GB)
Title: Friction driving device chiefly intended for cinematographic apparatuses
IPC: G03B1/40
Filed: 1928-02-02
Abstract: 285,852. Debrie, A. L. V. C. Feb. 23, 1927, [Convention date]. Shaft couplings.-A friction coupling for use in driving the take-up spool &c. in kinematograph apparatus, and for other purposes, comprises arcuate or semi-circular members 8 which are pivoted at 7 to a plate 6 rotatable on the driving shaft 2, and are kept in engagement with a drum 11, fixed to the shaft, by a spring, the plate 6 being provided with a stud 12 engaging a notch in a side plate 13 secured to a filmcarrying hub 1 loose on the shaft. As shown, the outer surfaces of the members 8 are caused to engage the inner surface of the drum 11 by a spring 9 in compression, and the plate 6 is secured to the outer ring 5 of a ball bearing 4. The apparatus may be constructed so that the inner surfaces of the members 8 may be kept in engagement with the outer surface of the drum 11 by a tension spring, and the ball bearing may be omitted.
Patent GB-456432-A (GB)
Title: Improvements in apparatus for separating or classifying solid particles
IPC: B03B5/62
Filed: 1935-02-01
Abstract: 456,432. Centrifugal separators. THOMAS, W. S., Cullinan Buildings, Simmonds Street, Johannesburg, South Africa. Feb. 1, 1935, No. 3363. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 10, 1935]. [Class 23] Apparatus for separating solid particles has a helical launder 3 arranged round a post 2 ; mixed material is supplied to the launder by a continuously operating mechanical feeder 6. At the upper part of the apparatus the floor of the launder is inclined upwardly and outwardly, but at the lower end the inclination diminishes until the floor becomes horizontal. The material is separated centrifugally as it slides down and the separate products are collected at the bottom. The flatter part of the launder has an outer wall 5 to retain the heavier parts of the material on the track. The material may be mixed with water; the post 2 may be hollow and have perforations 9 where the finer material is carried by the water. The helix is given an increased pitch in the region of the perforated part of the post.
Patent GB-1076235-A (GB)
Title: A method of brazing an elongated fin to a body
IPC: F28F1/40
Filed: 1966-01-25
Abstract: 1,076,235. Brazing. BROWN FINTUBE CO. Jan. 25, 1966 [Feb. 23, 1965], No. 3396/66. Heading B3R. An elongated fin member for brazing to a metal body such as a tube consists of a fin (3) Fig. 4 (not shown) fixed to a strip-like base (5) having a bottom formed with a groove (8) dividing the bottom into spaced surfaces adapted to be brazed to the body by brazing metal inserted as a wire rod or paste in the groove (8). The wire may be circular or non- circular and the groove shaped correspondingly. The paste may be copper powder in ethylene glycol. The tube and fins are of ferrous or non- ferrous metal and silver soldering, copper brazing or brazing in hydrogen may be used. The fin members each have two fins and are formed by rolling. The fins are attached externally and/or internally of the tube by the methods described in Specifications 790,342 and 789,774.
Patent GB-372295-A (GB)
Title: Improvements in bale-tie fasteners
IPC: B65B13/34
Filed: 1931-02-03
Abstract: 372,295. Binding bales &c. BAYER, J., 21, Nideggerstrasse, Lindenthal, Cologne, Germany. Feb. 3, 1931, No. 3438. Convention date, Aug. 14, 1930. Addition to 298,764, [Class 45, Fencing &c.]. [Class 45.] The tightening and crimping tool for securing metal band fastener ends together as described in the parent Specification is modified by mounting the crimping jaws 15 so that after crimping the sleeve or the bands at 13a they can be swivelled round the spindle 3a to crimp the bands again in another position 13a thus securing the band twice. Instead of being rotated around a separate spindle 3a, the crimper may be mounted on a bracket 18 rotatable round the shaft 3 of the serrated band tightening wheel. These alternative positions are held by spring catches. Sleeves 14 may be threaded on the bands to be crimped with them.
Patent GB-1401631-A (GB)
Title: Vibratory apparatus
IPC: B02C17/14
Filed: 1972-01-25
Abstract: 1401631 Vibratory screening apparatus GOUGH & CO (HANLEY) Ltd 11 Jan 1973 [25 Jan 1972] 3440/72 Heading B2H [Also in Division F2] Vibratorily driven apparatus, e.g. sieves, strainers or ore concentrators comprises a supporting frame 28 which supports at least three separately inflatable flexible air bags 30, and a vibratory frame 4 supported by the air bags 30 and in turn supporting a treatment vessel 2 and a power source 22 driving at least one out-of-balance weight 24 rotatable about a vertical axis. The rotation of the weight(s) causes the vibratory frame 4 to vibrate, in such a manner that a vertical axis which extends through the centre point of the plan configuration of the frame 4 and the vessel 2 describes a cone of precession. As shown, the power source 22 is an electric motor having a vertically extending shaft, out-of-balance weights 24 being mounted at each end of the shaft. In the case of a sifting machine, the vessel 2 comprises a base frame 6 and a top frame 8 with a mesh lawn 10 clamped between the two frames by means of clamps 12. A sloping plate 14 within the base frame 6 directs material passing through the lawn 10 towards an outlet 18. In use, adjustment of the amplitude and locus of the vibration imparted to the vessel 2 is made by adjusting the relative positions of the weights 24 on the motor shaft. Further adjustment may be made by adjusting the air pressure in the air bags 30 using the individual adjustment provided by air valves 32.
Patent GB-1211961-A (GB)
Title: Elongated collapsible structure
IPC: E04C3/00
Filed: 1969-01-21
Abstract: 1,211,961. Collapsible columns and beams. ASTRO RESEARCH CORP. 21 Jan., 1969 No. 3480/69. (Headings E1B and E1K. [Also in Division H4] A collapsible column (e.g. for supporting antenna on land or in space) or a beam comprises at least three elongate members 24, 26 and 28 spaced laterally and extending in the direction of the extended structure; extending in planes transverse the extended structure are battens 30, 31, 32 &c. which are pivotally connected to the elongate members at 64; diagonal tension members 38 and 44 (e.g. spring 50) interconnect the pivotal connections. In order to collapse the structure or one section thereof the top battens are rotated relative to the lower battens (Fig. 3) and the pivotal connections allow the elongate members to move from the vertical to the horizontal such that each section is stacked on to the next. The elongate members may be flexible, and thus when collapsed they form helices (Fig. 7), the unit being kept in a container and if the springs 50 are pre-stressed it will be automatically extensible.
Patent GB-1398816-A (GB)
Title: Withdrawing knitwork in an untwisted condition from a rotating  needle cylinder in a circular knitting machine
IPC: D04B15/92
Filed: 1973-01-24
Abstract: 1398816 Circular knitting machines; take down; preventing twisting ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 24 Jan 1973 [25 Jan 1972] 3568/73 Heading D1C In a circular knitting machine the work is drawn downwards pneumatically, and a rotating crescent shaped finger 23 is movable across the rotating tube 12 to engage the knitwork and prevent it from twisting. The knitwork is sucked down the tube 1 from the needles, and after a length has passed the finger 23, which is held first in its retracted position, the finger is moved across the tube 12 to trap the work in an aperture 25 in the side of the tube 12. When the knitwork is finished it may be drawn away with either the first or last course leading by retracting the finger before or after the last course course has been knocked off the needles, respectively. The finger is pivotally mounted on a sleeve 18 which moves up or down to cause the finger to retract or protrude; the sleeve is moved by a lever 21 controlled by Bowden cables 30, 43 from a pattern chain and cam respectively.
Patent GB-304490-A (GB)
Title: Improvements in or relating to machines for cracking and shelling nuts
IPC: A23N5/01
Filed: 1928-02-06
Abstract: 304,490. Richmond & Chandler, Ltd., and Mitchell, E. Feb. 6, 1928. Reciprocating sieves.-In a machine for cracking nuts, the kernels and small nuts after preliminary treatment in an air shaft 26 fall onto a sieve 27 and are delivered through an opening 30 on to a reciprocating sieve 31 mounted on springs 32 and shaken by a cam 35, driven by a belt 37, which strikes an arm 34 depending from the sieve. The kernels fall into a receiver 33 and the small nuts roll off the sieve into another receptacle.
Patent GB-681828-A (GB)
Title: Improvements in or relating to rotary screens
IPC: A01D17/18
Filed: 1950-02-13
Abstract: 681,828. Rotary sieves. SMITH. T. S. Feb. 12, 1951 [Feb. 13, 1950], No. 3611/50. Class 117 In a rotary screen for use in a harvesting machine, a plurality of hinged pockets are held in a position within the screen to scoop up and raise the material being screened to a predetermined position where each pocket is allowed to pivot about its hinge to discharge the material. As shown the screen comprises a plurality of spaced parallel rings 11 welded to the base and limbs of U-shaped members 12 which are in turn welded to a central channelsection ring 13. Pockets 14 each comprising a series of spaced parallel curved bars 15 connected at their ends by bars 16, 17 are pivoted by their bars 16 between the limbs of the members 12 to face in the direction of rotation. Each pocket 14 has an am 18 extending rearwardly at right angles and projecting through opening 19 in the ring 13, a torsion spring being arranged on each bar 16 tending to urge the pockets 14 into the discharge position with the arms 18 lying radially of the screen. The screen is driven by a chain 20 which passes round the ring 13 and is driven by a pulley 21 so that where the chain contacts the ring 13 the arms 18 are pressed against the ring periphery to hold the pockets 4 in the operative or scoop position and where the chain 20 leaves the ring 13 the pockets 14 are turned by their springs into the discharge position. A fixed bar may be arranged at the point where the chain 20 leaves ring 13 to delay the movement of the pockets 14. In an alternative arrangement the chain 20 may be replaced by a fixed guide band having an open portion determining the discharge position, the screen being driven by external rollers or by a central driving shaft and spokes. The guide band may be located coaxial with but to one side of the screen, extensions being provided on the arms 18 to engage with the inside of the band. Specincation 633,573 [Group I] is referred to.
Patent GB-400049-A (GB)
Title: Partition walls
IPC: E04B2/84
Filed: 1933-02-06
Abstract: 400,049. Lathing. HAMMERLE, A., Modling, near Vienna. Feb. 6, 1933, No. 3613. Convention date, Feb. 24, 1932. [Class 20 (iv).] A wire-netting lathing D adapted to receive plaster on one or both sides is provided with concrete bodies A loosely inserted in the meshes B of the netting so as to take up an inclined position relatively to the surface of the wall and each provided with its two ends enlarged to different sizes. To provide the enlarged ends, a steep inclined portion C is formed between the shank and the head, and a less steep portion between the shank and the opposite end. The concrete bodies A are inserted in the meshes after the netting has been secured in position.
Patent GB-704125-A (GB)
Title: Improvements in or relating to the casing of explosives enabling one single charge to be used for all purposes, i.e., undermining blasting, etc.
Inventor: CHATEL JACQUES PAUL
IPC: F42B3/00
Filed: 1952-02-11
Abstract: 704,125. Blasting cartridges; tampings. SOC. ANON. D'EXPLOSIFS ET DE PRODUITS CHIMIQUES. Feb. 11, 1952, No. 3618/52. Class 9(1)  Blasting cartridges are provided with rigid tubular casings which can be detachably joined to similar casings to form a composite cartridge of any required length, the explosive being retained in the casings by protecting lids which assist in the transmission of fire from one casing to another. Each cartridge 5 has an extension 7 at one end of reduced diameter adapted to have sliding fit in the casing 6 of the next cartridge. The explosive filling 14 in the casing 6 is confined between end discs 8. 9 of pasteboard, or aluminium, the disc 9 closing the extension 7, while the disc 8 is set back sufficiently from the mouth of the casing to permit assembly of the cartridges. The discs may be concave or convex towards the open end of the casing. When the composite cartridge 4 is assembled a plug 15 containing an electric igniter 17 is placed above the closure disc 8 of the last cartridge 15 in the column, Fig. 3. The lead wires 11 to the igniter are passed through a channel in the plug, which is provided with cords 12 by means of which the composite cartridge may be withdrawn from a borehole. On assembly the cartridge 4 is placed in a borehole as in Fig. 1, the leads 11 and cords 12 being led out and the hole filled with a tamping 2. The casings 6 may be of pasteboard, synthetic resin plastics or aluminium. Instead of assembling the cartridges by sliding fit, they may be screw-threaded, or provided with a system of mitred joints.
Patent GB-556165-A (GB)
Title: Improvements in or relating to power saws
IPC: B23D51/04
Filed: 1942-03-19
Abstract: 556,165. Sawing. OMES, Ltd., and MORA, G. March 19, 1942, No. 3689. [Class 145 (ii)] A sawing-machine of the reciprocating type comprises a vice for holding the work, means operated by fluid pressure for opening and closing the vice, and for raising and lowering the saw frame, and a single control member that causes simultaneous operation of both devices. The vice comprises a movable jaw 18 which is pivoted to the ram of a hydraulic cylinder 22. A work stop 31 is adjustably secured to a stand 28 which rests on the floor and is provided with an horizontal bar 26 that passes through an opening in the frame of the machine. Means are provided to clamp the bar 26 in any desired position of adjustment in order to suit the length of the work to be cut off by the machine. Packing pieces may be placed between the jaws of the vice when narrow articles are being cut in order that different parts of the same saw blade may be used in order to secure uniform wear. The stop 31 is made wide enough to allow for the horizontal shift of the work when packing pieces are used. The saw frame 16 reciprocates in guides in a pivoted arm 13 which is raised and lowered by the ram of a hydraulic cylinder 34, a pin 36 on the frame engaging a slot 37 on the ram to provide a lost-motion connection. The cylinders 22, 34 are operated by the same source of pressure through a single control valve 40, so that the frame 16 is raised from the work simultaneously with the opening of the vice, and is lowered as the vice closes.
Patent GB-570794-A (GB)
Title: Improvements in and relating to yarn feeding mechanism in ring doubling and like frames
IPC: B65H51/04
Filed: 1944-02-29
Abstract: 570,794. Delivering yarns. SCRAGG & SONS, Ltd., E., and DAVENPORT, A. Feb. 29, 1944, No. 3736. [Class 120 (ii)] Yarn 24, to be doubled, is drawn from a creel and wound once round a pulley 17 from front to back, lying in a zig - zag V-shaped groove having a slot below which holds the yarn firmly. The yarn is taken off at the front over a guide - pulley 15 and through an eye 16 to be wound on a doubling bobbin. The pulley 17 is positively driven and so constructed as to be readily removable from its shaft 9.
Patent GB-980195-A (GB)
Title: A combined photographic enlarging,viewing and projecting apparatus
Inventor: BARTEK ZDENEK
IPC: G03B27/32
Filed: 1962-01-31
Abstract: 980,195. Combined enlarging, viewing and projecting apparatus. MEOPTA NARODNI PODNIK. Jan. 31, 1962, No. 3781/62. Headings G2A and G2J. The optical system of a combined enlarging, viewing and projecting apparatus is divided into three parts. A first part, comprising a lamp container 12 adjustably supported on a column 19 includes a lamp 1, a reflector 2 and a condenser line 3. A second part comprising a lens carrier 14 is rotatably mounted on the container 12 and includes a light-diffusing plate 4, a reflector 5, a condenser lens 6 and a recess 16 for slides or negatives. A third part comprising a casing 18 includes a rotatable prism or other reflector 8, a mirror 9 and a ground glass viewing screen 10. In the position of Fig. 1, the apparatus is set-up for viewing images projected on to the screen 10. By rotating the prism 8 through 90 degrees the apparatus may be used for projecting images through one or other side window 21 and on to an external screen (not shown). By rotating the carrier 14 through 180 degrees the apparatus may be used as an enlarger, with the images being thrown on to a base board 20. The mount 11 for the lens 7 is rotatable for focusing. The screen 10 may be slidable into and out of the casing 18 to achieve variable magnification. More than two side windows in the casing 18 may be provided. The carrier may be held in any angular position relative to the container 12 by means of a locking screw 15.
Patent GB-1024960-A (GB)
Title: Electronic musical instruments
IPC: G10H1/02
Filed: 1965-01-28
Abstract: 1,024,960. Electronic organs. WURLITZER CO. Jan. 28, 1965 [Jan. 29, 1964], No. 3830/65. Heading G5J. Percussion generators associated with an electrophonic musical instrument are actuated by operation of the instrument's keys and pedals. The Figure shows the various percussion circuits. A super-regenerative circuit 24 acts as a noise generator and feeds a keying circuit 14 comprising the left-hand side of a double triode 140 and acting as an amplifier normally cut off by a - 22 V signal applied to the grid. This bias is overcome by single pulses developed, every time a key is closed, by a oneshot key generator circuit 160. This circuit is prepared by closure of a switch 194 associated with one of the organ stops or tablets and all the keys are connected through a resistor to a common D.C. supply. Closure of any of these keys to switch the appropriate tone generator develops a voltage across this resistor and this pulse is then fed to keying point K3 to trigger the one shot key generator and so cause the brush keyer to provide a brush signal to the output line 136. The brass drum circuit consists of a low frequency oscillator 298 which is connected to the audio output line and is triggered by operation of a pedal to earth keying point 70 to apply a pulse through capacitor 344. This circuit also is prepared by closure of a switch 352 associated with one of the stops. Similarly, the cymbal keyer 202 comprises a pentode normally biased to cut off but keyed by a pulse produced by operation of a pedal. The cymbal output is fed to the output line and is filtered by a tuned circuit 260, 262. It is also modulated by a seventeen cycle " shimmer " signal oscillator comprising the right-hand side of triode 140. The tone generators may be of the vacuum tube, transistor oscillator or vibratory reed type.
Patent GB-601008-A (GB)
Title: Improvements in the over-speed protection of turbo-generators
IPC: F01D21/02
Filed: 1944-03-01
Abstract: 601,008. Fluid-pressure servomotor-control systems. GENERAL ELECTRIC CO., Ltd., ABBOTT, A., GARRARD, C. J. O., and FREIDLANDER, E. S. March 1, 1944, No. 3850. [Class 135] [Also in Groups XXVI and XXXV] Speed control gear for a turbine 1 driving an electrical generator 4, and of the type for preventing a dangerous increase in speed when the load on the generator is suddenly decreased, comprises (i) a rapid load-controlled relay 5 which closes a contact 6 when the load is greater than a predetermined high value, closes a contact 7 when the load is less than a predetermined low value, and opens both contacts when the load is between these values, (ii) a time-delayed relay 8, operated when contact 6 is closed and releasing after a predetermined interval after that contact has opened and, when operated, closing a circuit including contact 7 and (iii) means, such as an auxiliary valve 3 and oil servomotor system to reduce the supply of working fluid to the turbine through the inlet valve 2 when the circuit through contact 7 and relay 8 is completed. When contact 6 is closed, current flows through a solenoid 9 to close the contact of relay 8 and also through a solenoid 20 of a " latch controlled " relay 19 to close the contact 22 thereof. If contact 7 is now made before relay 8 has released, a circuit through contact 22 and solenoids 11, 13, 16 is completed, whereby solenoid 16 actuates valve 3 to cut off the supply of working fluid to the turbine, and solenoid 11 closes a contact 12 to short-circuit contact 7 and relay 8. Solenoid 13 closes a time-delay contact 15 which, after a predetermined interval, completes a circuit through a solenoid 21 to open contact 22 and so allow normal working to be resumed. Relay 5 is a wattmeter (see Group XXXV).
Patent GB-410573-A (GB)
Title: Hydraulic press for use in moulding shaped articles
IPC: B29C45/82
Filed: 1933-02-09
Abstract: 410,573. Injection - moulding press apparatus. VLTAVSKY, J., (trading as VLTAVSKY, TOVARNA NA STROJE A SLEVARNA, ING. J.), Rakovnik, Czecho- Slovakia. Feb. 9, 1933, No. 3990. Convention date, Feb. 10, 1932. [Class 87 (ii).] In moulding machines wherein an hydraulic press cylinder 1 with a differential piston 2 holds the mould parts 3 closed and an hydraulic press cylinder 8 with a differential piston 9 presses material into the mould, the cylinders are so connected that the pressure in the cylinder 8 is used to increase the pressure in the cylinder 1. Pressure liquid is continuously admitted to the annular face of the piston 2 through a pipe 5 and is admitted to the full face or to an outlet 7 by a distributer 6. Similar pipes 10, 12, 13 and a distributer 11 are provided for the cylinder 8. A press cylinder 14 is formed as an extension of the cylinder 8 and is provided with a piston 15 carrying a flange 17 for limiting movement towards the cylinder 8. The annular face of the piston 15 is connected by a pipe 16 with the cylinder 1. In use, the distributer 6 is operated to close the mould and the distributer 11 then operated to move the piston 9 down to fill the mould. Towards the end of the downward stroke of piston 9, the pressure on the cylinder 8 acts upon the full face of the piston 15 and overcomes the pressure on the annular face and increased pressure is thus transmitted by the pipe 16 to the full face of the piston 2 so as to hold the mould parts 3 more firmly together. Owing to the flange 17 pressure in the cylinder 1 has no action on the full face of the piston 9.
Patent GB-607574-A (GB)
Title: Improvements in or relating to power-transmission systems
IPC: B60W30/18
Filed: 1946-02-08
Abstract: 607,574. Variable-speed gearing. SINCLAIR, H. Feb. 8, 1946, No. 4038. [Class 80 (ii)] In a power transmission system embodying a hydraulic coupling (not shown) connected to the shaft 18 of a gear-box 12, in order to overcome the drag torque from the coupling when the driven shaft 14 has been brought to rest and it is desired to place the gears or claw clutches of the gear-box 12 into neutral, brake shoes or bands 45 and 20A are simultaneously applied to drums 44 and 19A on the driven and driving shaft 43, 18 of the box respectively by actuation of a pedal lever 21. The brake 20A is of the type described in Specification 365,998 which on initial application tightens the.band 20A onto the drum 19A by the engagement of levers 34, 25 and then subsequently turns a brake supporting plate 23 slightly backwards against a spring 30 to relieve the pressure on the gears or clutches which can then be disengaged.