baber/WOPTO huggingface dataset:
Patent GB-425540-A (GB)
Title: Improvements in and relating to continuously variable change-speed gear
IPC: F16H9/24
Filed: 1933-07-18
Abstract: 425,540. Variable - speed gearing. BACK, A., 6, Mondgasse, Reichenberg, Czecho- Slovakia, and KRAUTSCHNEIDER, J., Erwood, Hudson Bay Junction, Saskatchewan, Canada. July 18, 1933, No. 20294. [Classes 80 (i) and 80 (ii)] [See also Group XXV] Power is transmitted at variable speeds from a pair of toothed cones 1, 1<1>, having their adjacent generating-lines parallel to each other, to a similar oppositely-arranged pair 3, 3<1>, by means of a variable-pitch chain 2, meshing between each pair of cones and passing around guide-sprockets or pulleys 7. The chain consists of thin superposed plates 12, slidable transversely between pivotallyconnected guide-plates 10, to accommodate the differences in tooth profile as the chain is moved bodily along the cones for varying the speed. The guide-plates 10 engage sidenotches 13, Fig. 2, in some of the plates 12, and slots in others, 14. Auxiliary teeth 17 and gaps 16 are formed in the larger ends of the cones. To move the chain, the guidepulleys 7 may be moved together axially, or, as shown in Fig. 7, along guides parallel to the adjacent generating-lines of the cones, either by hand or by means of a motor.
Patent GB-196303-A (GB)
Title: Improvements relating to gas cooking stoves
IPC: F24C15/34
Filed: 1922-01-18
Abstract: 196,303. Adami, F. Jan. 18, 1922. Cooking - stoves; heat - retainers: doors; supports for articles to be heated.-A massive metal plate is provided in a gas cooking-stove, which after being heated in proximity to the burners is moved to another position in which the stored heat is radiated on to the food being cooked. The oven shown contains burners i having downwardy directed jets, above which is a refractory slab e the heat in which may be used to effect or complete the cooking after the gas is extinguished. A massive metal plate a is provided which is supported on ledges d<1> immediately below the burners and after heating is moved to a lower position as shown in Fig. 1, so that food placed' in the stove between it and the burners i is simultaneously heated from above and below. Grooves a<1>, a<2>, in the plate a, Fig. 3, lead the juices from the food to holes a<3> through which they drop to a dish b. A plurality of plates a may be provided. A spit may be removably supported in slots in the side walls of the oven having a pulley j<6> by which it may be rotated manually, or by spring motor. The spit, which is shown separately in Figs 3a, 3b, comprises two rigidly attached bars j<1>, j<3> and a third bar j<2> which is opened out for the insertion of the joint, being retained by thumb-screws j<4>. The slab e may be provided with recesses or holes corresponding to holes in the top-plate f, and burner rings may be provided so that utensils may be heated on the top. The oven is provided with lower and upper horizontally hinged doors g, h, the latter having observation windows h<1> of mica &c. As shown in Fig. 4 a hot-closet k may be provided at the top of the stove, below which a boiler may be fitted at l. A burner tube i<2> may be disposed beneath the bottom plate c of the oven.
Patent GB-1473661-A (GB)
Title: Surface acoustic wave device
IPC: H03H9/68
Filed: 1974-07-12
Abstract: 1473661 Surface wave devices MICROWAVE & ELECTRONIC SYSTEMS Ltd 12 July 1974 [30 April 1973] 20507/73 Heading H3U A surface wave device comprises an output transducer 23 between two parallel-connected input transducers 21, 22 on a substrate 1, the inter-transducer distances being such that bulk waves arriving at transducer 23 cancel and surface waves would cancel but for the provision of means 25 which introduces an additional phase change of (2n+1)# radians along one of the surface wave paths at a selected frequency, so that the surface waves at that frequency from transducers 21, 22 arrive at transducer 23 in phase. As described, means 25 comprises a layer of aluminium, gold or lead glass on or closely adjacent to the surface of substrate 1. Wave reflections may be reduced by inclining the transverse edges of the layer, and the bottom surface of the substrate may be roughened to absorb bulk waves. Various transducer configurations are discussed in connection with Fig. 2 (not shown) and transducer 23 may have a different response from transducers 21, 22.
Patent GB-1298174-A (GB)
Title: Earth boring machine
IPC: E21B19/20
Filed: 1971-04-19
Abstract: 1298174 Boring earth &c DRESSER INDUSTRIES Inc 19 April 1971 [2 Feb 1970] 20703/71 Heading E1F Rotary earth boring apparatus comprises a support frame including a base and support columns mounted on the base, a carriage movable up and down on the columns, drilling means on the carriage, and a reaction part associated with the support frame for stabilizing the apparatus, the post including a jack screw engaged with threads in the post and a spring connected to the screw for applying torque thereto. Ground elements 11, 12 are anchored to a concrete block, and columns 8, 9 are pivoted to the elements, the angle of the columns being adjusted by fitting different length braces 61, 62. The reactor post 13 for engaging a roof is adjustably fixed to the column 8 by a clamping bracket 14. The post is kept in engagement with the roof by the spring acting on the jack screw, torque being applied to the spring by means of a ratchet or a motor. The carriage 63 sliding on the columns supports a drill head 64 and a motor 65 connected to the head by a chain, gear or other transmission. A thrust cylinder 17 has its body connected to the carriage and its piston 66 connected to a cross frame 67 fixed to the columns. The motor 65 is removable from the head so that the head and carriage may be inverted to convert the apparatus for upward drilling (shown) to one for downward drilling. In a modification (Fig. 8 not shown) the drill head has a chuck for holding drill pipe at either end. During upward drilling debris is collected by a hopper 25 and packers 26, 27, all of which are constructed to permit passage of projections (such as a stabilizer 34) on the drill string 16. Each section of the drill string has flats 72 which are engaged by a slotted plate for making and breaking a pipe joint or for supporting pipe in the hole. The plate may be positioned between the columns and two plates may be positioned, one above, and one below the drill head. A drill pipe positioner 79 moves pipe sections between a rack (not shown) and the drill head, and comprises arm 80 pivoted to the column 8 and moved by a ram 82, an element 83 pivoted to the arm 80 and moved by a ram 86, arms 84, 85 on the element 83, and holding means (which may be electro-magnetic) at the ends of the arms 84, 85 for engaging a pipe section 94. The positioner is hydraulically operated but will not move unless the holding means are firmly engaged with the pipe section. The apparatus may be used for reaming pilot holes in the upward or downward formation of raises.
Patent GB-1412079-A (GB)
Title: Device for optical alignment and adjustment of a laser
IPC: B23K26/035
Filed: 1973-05-01
Abstract: 1412079 Aligning lasers OMEGA LOUIS BRANDT & FRERE SA and ALCYON ELECTRONIQUE ET PHYSIQUE SA 1 May 1973 [30 May 1972] 20723/73 Heading G2J A machining laser I is aimed at its target 15 by means of light from an auxiliary laser 6 of low power, the latter laser emitting light that is directed on to the optical axis of the main laser by a prism 9 and a beam-splitting mirror 10. Mirrors 12, 13 divide the working (and aiming) beams to provide two operating sites and are adjustable to vary the spacing of F 1  and F 2 . By observing the reflections of the auxiliary laser beam from the mirrors 2, 3 of the machining laser on the screen 17 they can be aligned.
Patent GB-604349-A (GB)
Title: Improvements relating to positional control systems
IPC: G05D3/14
Filed: 1943-12-10
Abstract: 604,349. Telecontrol systems. SPERRY GYROSCOPE CO., Inc. Dec. 10, 1943, No. 20742. Convention date, Dec. 10, 1942. [Class 40 (i)] In a system in which coarse and fine selsyn receivers are geared together and coupled to a servomotor which is controlled in accordance with the sum of their output voltages, the voltage of the fine receiver being limited by shuntconnected rectifiers &c. 12 as described in Specification 529,638, the output of the coarse receiver is rendered ineffective by series-connected rectifiers &c. 13 when its value is small. This limits the total error to that due to imperfection in the fine receiver.
Patent GB-221928-A (GB)
Title: Improvements in or relating to the separation of granular material such as coal, ores, or the like
IPC: B03B5/62
Filed: 1923-08-15
Abstract: 221,928. Lequeux, G. Aug. 15, 1923. Upward current classifiers; jigs; inclinedtrough wet-separating apparatus.-Ores, coal, or other granular materials are stratified by a preliminary gravimetric separation and the lower strata are then subjected to the action of an upward current classifier while the upper strata pass over an inclined plate arranged above the upward current classifier and protecting these strata from the action of the upward current. In Fig. 1, material supplied at a is carried by water on to a perforated screen c supported on pivoted weighted links d and oscillated by cams j acting through a roller on an adjustable rod g and links e, f; material passing through the screen is discharged at o and the remaining material is stratified, water supplied upwardly through pipes l assisting the action. The upper layers pass over a damper m and inclined pipes u, u<1> to the damper-controlled outlet n; the lower layers pass below the plates and are subjected to upward currents of water supplied through a header g, valves r and a series of passages y. In a modification, the screen c is omitted, the material being carried by water down an inclined shoot in which it is stratified before reaching the upward current classifier. In Fig. 5, the plates u, u', are replaced by a dished member carried by a screen u<11> through which water and heavier parts of the upper layers of the material pass to an outlet 6.
Patent GB-169839-A (GB)
Title: Improvements in and connected with hack saw frames
IPC: B23D51/01
Filed: 1920-07-10
Abstract: 169,839. Guite, H. July 10, 1920. Addition to 153,117. Saws.-Consists in the following modifications of construction of the hacksaw frame described in the parent Specification, (1) the screw threads 1 and 3 on the saw back 2 and sawblade holder 4 are made of the same diameter and pitch to enable the holder to be screwed directly into the handle 5, Fig. 2, so that a saw blade 6 may be used similarly to a keyhole saw; (2) a hole 7 is provided at each end of the back 2 so that one end of an unbroken saw blade may be secured directly to the back 2 and the other end to the side of the holder 4; (3) a member 10, Fig. 4, provided with a marking or cutting tool 12 is adapted to be screwed on to the end of the back 2, and to be used in conjunction with a trammel pin or cutting tool'inserted in the part 11 for cutting or marking circles, and this part 10, when detached, may be used as a chisel; (4) an auxiliary handle 13, adapted to slip on the back 2 and be secured in any position by a screw 14, may be provided to facilitate the use of the saw. 169,885. Routh, W. F. Aug. 18, 1920. Chisels.-A cold chisel is formed with a cutting-edge H, and a number of wedge-shaped cutting-ridges C, D, E, c, d, e spaced apart and rising from the cutting-edge on both sides of the blade. The chisel may be used to remove bolts from wood by driving the chisel slantwise under the head of the bolt so that the ridges cut into the wood and the head of the bolt, which is thus held secure, while its nut is unscrewed.
Patent GB-875673-A (GB)
Title: Improvements in and relating to a loading device for automatic firearms having a revolver drum
IPC: F41A9/30
Filed: 1960-06-14
Abstract: 875,673. Automatic firearms. VERWALTUNGSGESELLSCHAFT DER WERKZENGMASCHINENFABRIK OERLIKON. June 14, 1960 [June 18, 1959], No. 20817/60. Class 92. A loading device for automatic firearms has a revolver drum 2 with several chambers 4 mounted on the same shaft 3 as a feeder star-wheel 14 having recesses 15 coaxial with the chambers and a slider 25 which engages cartridges whilst they are being fed from a transverse feeder-channel 48 to a position coaxial with the recess 15 and which pushes them in two consecutive strokes into a chamber in the drum 2. The drum 2 is in a casing 7 whose rear wall has an arcuate slot 18 extending from the "9 o'clock" to the "3 o'clock" position (Fig. 3) and which supports the base of a cartridge 49 in the chamber aligned with the barrel 9 at "9 o'clock" when it is fired (Fig. 1). Gas bled from the barrel causes a piston 30 to drive back a slider 24. Grooves in the slider 24, part curved part straight, engage studs 5 to cause the drum 2 and star wheel 14 to rotate in phase with the loading operation. The sliders 24 and 25 are connected by links 26 and 27 pivoted at 28 and are returned to their starting position (Fig. 1) at the end of each cycle by springs 29. A groove on the link 26 co-operates with a cam on an ejector 20 pivoted at 21 to the casing 7 to eject a fired case from the chamber at "9 o'clock" along an aligned ejection channel 19. The wheel 14 comprises two sets of star-crowns 14a and 14b at its front and rear ends respectively. The crowns 14b engage clamping surfaces 36, 37 of belt links 32 to draw rounds from a magazine (not shown) through the channel 48. Whilst in the channel the cartridges are positioned by a guide 39 which engages grooves 35 in each link (Fig. 6, not shown), a guide 42 which engages the neck of the cartridge, and the walls of the channel itself. Before the axis (double circle in Fig. 7) of a cartridge 52 becomes aligned with the axis (single circle) of the recess 15 its base is engaged by the heel 25g of the slider 25 and it is pushed out of the clip 32 which is held stationary between the guide 39 and a star-crown 14(b). The star crowns 14(b) draw the empty links around and expel them whilst the heel 25g pushes the cartridge 52 forward on to the star crowns 14a to a position level with that of the round 60 in Fig. 10 where it is held by pawls 17. Simultaneously the nose 25c of the slider engages the base of a cartridge 60 already in the forward position to load it into the drum chamber in the "3 o'clock" position. The feeder wheel 14 and drum 2 then rotate to carry the loaded cartridge into the firing position at "6 o'colck". In another embodiment (Figs 9 not shown and 10). The device is adapted to load similarly unbelted ammunition which has been forced into the feeder channel. In both embodiments the geometry of the loading system allows for the drop of the nose of the round as it is pushed forward into the chamber. Specification 697,934 is referred to.
Patent GB-481257-A (GB)
Title: Improvements in centrifugal machines for cleaning sand or similar granular materials
IPC: B04B11/06
Filed: 1937-07-27
Abstract: 481,257. Centrifugal machines. CIMENT MANUFACTURE SOC. ANON. July 27, 1937, No. 20819. Convention date, July 28, 1936. [Class 23] Sand and other granular materials are successively washed, dewatered and screened in a centrifugal machine 2 the lateral wall of which is composed of superposed rings 14 which can be moved relatively to one another to form slots of desired width for the discharge of the washing water and grains of material of predetermined size. Compression springs 15 are interposed between the rings which have a cover 12 and a base 6 supported by ball bearings on the stationary hollow shaft 3 by means of a fixed collar 8. The base 6 has a bevel gear wheel 9 meshing with a pinion 10 on the driving shaft 11. The nut 16 is first screwed down to close the gaps between the rings 14 and sand or other material is put into the vessel 2 through the manhole 18. The vessel is rotated and washing water is passed from the pipe 5 to the hollow shaft 3 so that jets are discharged from the apertures 13. The sand and water are thoroughly mixed by an impeller 17 on the shaft and the nut 16 is rotated so that fine slots are made by the springs 15 forcing the rings 14 apart. This permits the washing water to discharge to the trough 20 but retains the sand. Further water is added to rinse the washed sand and the water supply is then stopped. The speed of rotation is then increased to dry the sand, and if desired compressed air may be supplied through the shaft 3. The nut 16 is then loosened to widen the slots between the rings to permit the sand to be discharged. By adjusting the size of the slots, sand grains of progressively increasing size may be discharged. The rings have inclined faces 22 to guide the sand to the slots 15, and an external shield 21 deflects it to the trough 20.
Patent GB-167497-A (GB)
Title: Improvements in combination locks
IPC: E05B67/06
Filed: 1921-08-05
Abstract: 167,497. Ugar Mez÷gazdasßgi Ús Kereskedelmi RÚszvÚnytßrsasßg, (Assignees of Vadßsz, M.). Aug. 9, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Padlocks, permutation. - The limbs of a shackle a have recesses a<1> which are engaged by teeth c<1> on a locking-plate c. The plate e has an elongated slot s permitting movement on the fixed pin d and has recesses c<2> in which are permutation elements i. The plate c has also a pin e working in a slot g in a second plate f which is attached to a handle h and has pear-shaped openings f<1>. The permutation elements consist of a disc i having a raised tooth i<3> and a projection i. A toothed sleeve k fits in the cut-out centre of the disc i and the tooth i<3> fits into one of the recesses between the teeth k<1>. A key inserted into the grooved hollow k<2> of the sleeve enables the permutation elements to be set to the position shown in Fig. 1. The plate f can then be rotated by the handle h, when the pin e moves the plate c to the left, disengaging the teeth c<1> from the shackle legs. In this position, the larger parts of the pear-shaped openings f<1> are directly under the permutation elements and the sleeve k may be pushed inwards against the spring l, disengaging the tooth i<3> from the disc k and allowing the combination to be changed.
Patent GB-1351211-A (GB)
Title: Colour signal recording
IPC: H04N5/84
Filed: 1971-04-19
Abstract: The contacts 16a of a power relay are shunted by a gateable semiconductor device 18 to assist in the commutation of contactdestroying arcs upon making and breaking of the power relay contacts; current-detection apparatus, such as a current-sensing transformer 22, 24 are utilized in the conductors connecting the relay contacts and the gateable switching device to an input 14a from an a.c. source. Electronic control means 20 receives the outputs of both current-sensing transformers 22, 24 to gate the shunting device 18 into conduction during relay contact closure and separation, in a manner to minimize the current passing through the shunting device 18 and therefore to minimize the energy dissipated therein. <IMAGE>
Patent GB-1432835-A (GB)
Title: Data storage system
IPC: G11C7/00
Filed: 1973-05-02
Abstract: 1432835 Data storage systems INTERNATIONAL BUSINESS MACHINES CORP 2 May 1973 [3 May 1972] 20962/73 Heading G4A In a data storage system an associative store 32 (Fig. 5), on receipt of an address for data from a central processing unit either causes read out of the required. data from a random access store 31 if it is stored therein or causes transfer of the addressed data from a sequential store 50 to the random access store 31 with subsequent read out from the latter. As described on receipt of an address on lead 34, the high order address bits are fed to associative store 32. If the address for data is held in store 31, store 32 generates a match signal to enable gate 36 and provides a seven bit address. Data read out from the store 31 is fed on lead 33 to either the main memory or high speed buffer or processor. If however the associative store generates a "mis-match" signal gate 38 is enabled and thus the high and low order address bits on lead 34 are fed to disc file 50 to cause read out of the required data to store 31, associative store 32 being simultaneously updated via lead 42. Subsequently gate 36 is enabled and the store 31 is addressed to read out the requested data on lead 33. A machine interrupt is generated on lead 43 during the transfer of data. In the embodiment of Fig. 6 (not shown) the random access store (61) is divided into two sections, a section (62A) holding leader pages, e.g. page 1, page P+ 1, page 2P+ 1 and a second section (62B) capable of holding P-1 pages. If an address signal results in associative memory (63) generating a "match" signal higher order address bits from the associative store cause read out from the leader page section (62A) of the random access store. A counter (65) which also receives the high order address bits is simultaneously incremented by 1. As data is read out from the first section (62A) a gate (70) is enabled so that the address in the counter (65) is used to access disc file (50A). This results in the next page being fed from the disc file into the second section (62B) of the random access store so that when the last word of the leader page is read from the first section the next page may be read out from the second section (62B). If however a "mis-match" signal is generated a gate (81) is enabled so that the address bits are fed to disc file (50A) to cause read out of the address data to the first section (62A) of the random access store, the associative memory being simultaneously updated so that a match signal is then generated and the system operates as above. The random access store preferably comprises an array of charge coupled memory cells 15 each comprising a semi-conductor body divided into three regions, the first having an impurity diffused or ions implanted therein, the second serving as a gate between the first and third regions and the third region functioning as a capacitor. The first region is used as the bit line and the second region as the work line, addressing being controlled by bit and word line decoders. The disc store may be replaced by a drum or tape.
Patent GB-754499-A (GB)
Title: Improvements relating to the bonding of metal borides to graphite
IPC: H01J9/04
Filed: 1954-07-20
Abstract: 754,499. Cathode material and processing. GENERAL ELECTRIC CO. July 20, 1954 [July 20, 1953], No. 21141/54. Drawings to Specification. Class 39 (1). A cathode is made by melting a metal boride on a graphite support. The melting should be carried out with a movable heat source such as an electric arc so that already melted portions are not further heated so that they attack the graphite. The preferred boride is lanthanum hexaboride but borides of rare earths, alkaline earths, thorium or uranium or mixtures may be employed. It is introduced into a recess in the graphite block in the form of a compressed powder block of the right shape. Specification 683,940 is referred to.
Patent GB-1194891-A (GB)
Title: Mowing Machine
IPC: A01D34/30
Filed: 1967-05-08
Abstract: 1,194,891. Mowing machines. PHILIPS GLOEILAMPENFABRIEKEN N.V. 8 May, 1967 [11 May, 1966], No. 21216/67. Heading A1F. [Also in Division F2] In a mowing machine, each pivoted knife 3 has a yieldable connection with a reciprocating driving bar 12 comprising a block 11 located between plates 13, 20 which are held against shoulders 15, 17 by springs 14, 16 whose opposite ends engage shoulders 18, 19 in the bar 10. In a modification, a spring 22, Fig. 4, acts on one side of a block 11 and a spring 23, of double the strength of spring 22, acts on a plate 13 on the other side of the block. In the arrangement shown in Fig. 5, pairs of blocks 11, 24 are acted upon by tension springs 22 and a compression spring 23 of twice the combined strength of springs 22. In a further modification a connecting-rod element 32, Fig. 6, is coupled to a bar 12 by an arrangement of springs 22, 23 similar to that shown in Fig. 4. In another modification, shown in Fig. 7, springs 22, 23 abut a shoulder 33 on a driving bar portion 32 having a plunger-like portion 31 engaging an abutment washer 13 located against a shoulder 15 in bar 12. The opposite end of spring 22 abuts a ring 19 on bar 12.