baber/WOPTO huggingface dataset:
Patent GB-664824-A (GB)
Title: Improvements in or relating to means for eliminating back lash in transmission mechanisms
IPC: B23Q5/56
Filed: 1948-04-20
Abstract: 664,824. Machine tool details. VICTORIA MACHINE TOOL CO., Ltd., FRYE, J., and SELBY, J. May 17, 1949 [April 20, 1948], No. 10897/48. Class 83 (iii). [Also in Group XXIV] A screw-and-nut transmission mechanism has means for eliminating backlash. particularly for when the load is in the direction of movement. It is shown applied to a milling-machine in which the table is connected to a non- rotatable traverse screw 1 engaged by two nuts 2, 3, rotatably mounted in a fixed part 23. The nut 2 is rotated by gearing 26, 29 and has projecting tongues 5 engaging slots in the nut 3 so that the two nuts rotate together but may have relative axial movement. The outside of the nut 3 is formed with a coarse helical thread engaging a similar thread in a sleeve 4 in frictional engagement with a rotatably-mounted boss 7 which may be held stationary. The boss 7 has a conical bore and is axially urged into frictional engagement with the conical periphery of the sleeve 4 by springs 12 acting on pins 10 which are slidable in holes 11 in the boss, the pins being secured to a rotatable annulus 9 abutting the face of a collar 8 secured to the sleeve 4. The screw 1 may be moved at two speeds-for " quick traverse " or for " feed "-by separate motors, and as the backlash-eliminating means is required only when feeding, it is automatically effective only on energization of the feed motor. A solenoid 16 is connected, through a switch, across the feed motor terminals and actuates a rod 36 raising a plunger 14 to engage slots 13 in the boss 7 and hold it against rotation. The nut 3 is thus yieldingly urged forward by the coarse helical thread (in co-operation with the slipping connection 4, 7) so that the nut 3 acts as the driving means for the screw 1 and the nut 2 as restraining means. When the solenoid 16 is de-energized the screw 1 is driven by the nut 2. Conventional backlash-eliminating means, comprising a nut 17 rotatable with nut 2, the two nuts being adjustably pressed axially apart, is also provided. Specification 596,147, [Group XXIV], is referred to.
Patent GB-293685-A (GB)
Title: Improvements in or relating to electromagnetic reciprocating motors
IPC: H02K9/02
Filed: 1928-04-13
Abstract: 293,685. Central Electric Tool Co., (Assignees of Weyandt, C. S.). July 9, 1927, [Convention date]. Reciprocating machines; field magnets. cooling and ventilating.-A reciprocating electric, motor for a rock drill or like percussion tool is formed with passages for cooling air which is supplied from a pump &c. through a flexible connection in the walls of which are embedded the supply leads of the motor. The field-magnets are formed of packs of laminations 2, 3, 4 circumferentially spaced around a non-magnetic tube 1 and having pole-pieces 6 - - 9 projecting through the walls of the tube and ground flush with them. The laminations are held in place by clamping pieces 11, 12 and end rings 16, and are enclosed in a magnetic casing 5. The windings 14, 15 are so disposed as to leave passages between them and the tube 1 and the casing 5. The armature 11 reciprocates freely in the tube 1 striking at one end against the shank 20 of the tool and at the other against a block 26 abutting on a spring 27. Longitudinal slots are formed in the tube 1 to prevent eddy-currents and may be closed or covered by non-conducting material, or may be left open, the air entering them escaping through the tool shank 20, which is made hollow, to remove dust &c. The coils 14, 15 are alternately energized by the arrangement shown in Fig. 8. One terminal of an alternating-current generator 46 is connected through conductors 44, 49<c> and a switch 31 to a common terminal of the coils 14, 15. The other ends of the coils are respectively connected through conductors 50<c>, 51<c>, to the anode of a valve V and the filament of a valve V<1>. The filament of the valve V and the anode of the valve V<1> are connected through a conductor 43 to the other terminal of the generator 46. A motor M is arranged in parallel with the above circuit and by means of a switch d can be run continuously or controlled by the switch 31 through a conductor 52<c>. In a modification the pump is driven from the same prime mover as the generator 46 and the valves &c. contained in a separate casing.
Patent GB-527412-A (GB)
Title: Improvements in and relating to methods of producing discharges suitable as ignitionsparks
IPC: F02P3/08
Filed: 1939-04-11
Abstract: 527,412. Ignition systems. BRITISH THOMSON-HOUSTON CO., Ltd., and KNIGHT, H. DE B. April 11, 1939, No. 11005. [Class 7 (iv)] [Also in Group XXXV] An arrangement for producing electrical impulses for example for obtaining ignition sparks at a gap 7 comprises a two-electrode discharge device 8 to which a voltage insufficient to cause discharge is applied from a charged condenser 2 through an inductance 11, and discharges are produced at timed intervals by application of voltage between an auxiliary electrode 12 and the main electrode 9 or a point between this electrode and the inductance 11. Specification 490,392 is referred to.
Patent GB-1073895-A (GB)
Title: Collapsible holder for garbage bags and the like
IPC: B65B67/12
Filed: 1965-03-16
Abstract: 1,073,895. Sack holders. UNION CARBIDE CANADA Ltd. March 16, 1965 [April 2, 1964], No. 11017/65. Heading B8C. The mouth of a plastic bag for the collection of garbage &c., is secured to a collapsible holder 10 formed as a frame 11 consisting of a bar 13, secured to a wall &c. bracket 14, and members 24, 25, 26, connected to each other and to the bar 13 by hinges 28, 27 the members 24, 26 having intermediate hinges 29 formed with abutments 32 preventing alignment of the parts of the members 24, 26 and constraining the parts to collapse inwards when the member 25 is pressed towards the bar 13. The mouth of the bag is folded outwards over the frame and impaled on extensions 33 of the hinge pins. A channel-section lid 18, hinged to the bar 13, receives the collapsed frame and has a flange 23 for finger operation. A handle may be provided on the member 25.
Patent GB-569605-A (GB)
Title: Plate-lifting grab
IPC: B66C1/48
Filed: 1943-07-07
Abstract: 569,605. Lifting-dogs. MAGUIRE, R., and MAGUIRE, R. July 7. ]943, No. 11022. [Class 78 (iv)] A grab . for lifting plates comprises a jaw 20 to the shorter arm 20<2> of which is pivoted a two-sided lever 24 having teeth 27 which grip the plate 22. The longer arm 201 of the jaw 20 may be serrated where it supports the plate 22. A suspension shackle 25 is pivoted to the outer end of the lever 24. Two or more jaws may be employed to lift a plate, and the teeth 27 may be dis. posed within the slot of the jaw or outside same. A pin 29 limits the swing of the lever 24, and a hole 28 can receive a control rope.
Patent GB-856000-A (GB)
Title: Improvements in and relating to the neutralization of thermionic amplifiers
Inventor: VACKAR JIRI
IPC: H03F1/16
Filed: 1958-04-08
Abstract: 856,000. Improvements in amplifier circuits. TESLA NARODNI PODNIK. April 8, 1958 No. 11047/58. Class 40(6). An earthed-grid, push-pull amplifier for u.h.f. has in its grid circuit a capacitor 3 which tunes out the effective inductance of the grid leads 2, 2<SP>1</SP>. The anode-cathode capacitances of the valves are neutralised by connecting each grid side of the capacitor 3 to the cathode of the other valve via capacitor 4, 4<SP>1</SP> which are large compared with the anode-cathode capacitances. By appropriately mis-tuning the capacitor 3, negative feedback can be applied to each valve via the grid-cathode capacitances.
Patent GB-395827-A (GB)
Title: Improvements relating to tachometer generators for motor vehicles and the like
IPC: G01P1/04
Filed: 1932-04-28
Abstract: 395,827. Speedometers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and GRIFFITHS, L., 78, Biggin Hall Crescent, Coventry. April 18,1932, No. 11082. [Class 106 (iii).] A mounting and driving arrangement for a speedometer generator such as the generator described in Specification 395,404, [Group XXXV], comprises an end plate on the generator casing with a prolongation insertable into the bore hole of the driving gear casing and serving as a bearing for the gear wheel which is connected to the generator spindle. The prolongation may be screwed directly to the gear casing but in the form shown the end plate has a prolongation 11 which is secured to the screwed aperture 12 of the gear casing 2 by means of a screw-threaded collar 5 rotatable on the prolongation and held thereon by a collar 6. The collar 5 is retained in position by a grub-screw 7. The prolongation forms a bearing for the usual gear wheel 3 the extension 13 of which is slotted to receive a projection 14 on the spindle 4 of the generator 8. By utilizing a collar such as 5, turning of the generator casing to secure it in position when directly applied to the aperture 12 is avoided.
Patent GB-676331-A (GB)
Title: Improvements relating to draw-leaf tables and like articles
Inventor: WELLER JACK
IPC: A47B1/05
Filed: 1950-05-05
Abstract: 676,331. Tables &c. SANKEY-SHELDON, Ltd. Feb. 9, 1951. [May 5, 1950] No. 11109/50. Class 52 (iii). In a table, desk, &c. of the kind such as is described in Specification 660,679 the slide 4, which carries the draw-leaf 3 by means of pivoted links 10, is provided with an operating handle 17 connected to a slidable bar 18 which is connected, at its remote end, to the slide 4 by a spring 21. In extending, the handle 17 and slidable bar 18 is drawn outwardly causing the slide 4, through the spring 21, to slide outwardly together with the draw-leaf 3 until the draw-leaf 3 clears the fixed table top 1 whereupon a spring 28 at the end of the draw-leaf 3 and the engagement of the roller 12 with the ramp 11 causes the draw-leaf to rise freely to the level of the fixed table top 1 release of the handle 17 allowing the spring 21 to retract the handle 17 beneath the drawleaf. To retract the draw-leaf 3 to its inner position the slide 4 by means of the handle 17 is drawn outwardly causing the draw-leaf 3 to be lowered whereupon it can be pressed home below the top 1, stop 22 on the handle 17 engaging a transverse member 23 preventing the handle being pushed too far below the retracted table top.
Patent GB-569099-A (GB)
Title: Improvements in or relating to 2-aliphatic substituted guanamines and methods of preparing the same
Filed: 1942-08-08
Abstract: 2-Aliphatic substituted guanamines having one or more negative substituents in the aliphatic chain are prepared by reaction of a biguanide with an ester of a negatively substituted aliphatic carboxylic acid.  The negative group may be cyano, carboxy, carbalkoxy, sulpho, nitro, acid amide, carbonyl, hydroxy or alkoxy. A solvent such as methanol or ethanol and a condensing agent such as a metal alkoxide may be used.  Examples are given of the preparation of cyanoacetoguanamine from biguanide and ethyl cyanoacetate, a -cyano-g -ethyl-2-octenoguanamine from biguanide and methyl a -cyano-g -ethyl octenoate, b -ethoxypropionoguanamine, b -amyloxypropionoguanamine, b -oxydipropionoguanamine, a -bromoisovaleroguanamine, a ,a -dichlorostearoguanamine, amyloxysuccinoguanamine, b -carboxyamyloxypropionoguanamine, itaconoguanamine, methylene-carboxypropionoguanamine, levulinoguanamine with a pyrimidine derivative as by-product, 4-N-phenyl-b -methoxypropionoguanamine, lactoguanamine, malonoguanamine, carboxyacetoguanamine, succinoguanamine, b  - carbomethoxypropionoguanamine, glutaroguanamine, adipoguanamine, sebacoguanamine, o  - carbomethoxypelargonoguanamine, o  - carbutoxypelargonoguanamine, o  - carboxypelargoguanamine, b  - carboxyacrylo - guanamine, methoxy - N - octylcarbamylpro - pionoguanamine, b -sulphopropionoguanamine, b  - sulpho - b  - carboxypropionoguanamine, o -sulphodecanoguanamine, 4 - N - phenyl - b  - sulphopropionoguanamine, o  - acetylundecanoguanamine, g -nitrovaleroguanamine, o -bromodecanoguanamine, and 9,10 - dibromostearo - guanamine. Specification 569,101 is referred to.
Patent GB-1351618-A (GB)
Title: Metallurgical vessel
IPC: B22D41/42
Filed: 1971-04-23
Abstract: 1351618 Sliding gate nozzles for ladles DIDIER-WERKE AG 23 April 1971 [23 April 1970] 11150/71 Addition to 1322375 Heading F4B In a sliding gate nozzle for a metallurgical ladle, an annular gas permeable brick 11 is inserted in the nozzle plate 6 forming a continuation of the orifice brick 4. A gas port (12, Fig. 2) extends through the plate 6 to a three-way valve (13) by which an inert gas, e.g. nitrogen or argon or a reactive gas, e.g. chlorine may be supplied. In a modification (Fig. 3) the whole orifice brick 4 comprises the gas permeable brick and extends into the nozzle plate 6. It is supplied from a three-way valve through a gas passage (14, 15) extending upwardly through the sliding plate and part of the nozzle plate. The gas permeable brick may be made of mullite, corundum, magnesite or zirconia with a pore size of 20-350 microns, preferably 50-100 microns.
Patent GB-637449-A (GB)
Title: Improvements in or relating to vehicle direction indicators
IPC: B60Q1/36
Filed: 1947-04-26
Abstract: 637,449. Road-traffic signals on vehicles. O'SHEI, W. E. April 26, 1947, No. 11227. [Class 118 (ii)] The solenoid core tube for a vehicle direction indicator of the semaphore type is die-cast integrally with the bearings for the indicator arm so that the relative positions of the core axis and the bearings are maintained substantially constant, permitting massproduction without subsequent delicate adjustments being required. The core tube 6 is of reduced diameter at the lower end, as at 15, for fixing the coil end wall, and at the upper end carries the brackets 7 which have apertures 5a to take the bearing pin of the indicator arm. Front and back stops 10 and 8 respectively, as described in Specification 635,067, are cast integrally with the core tube and bearings. One or both coil end walls may also be cast integrally and the outer surface of the core tube 6 may be cast with a helical groove to facilitate winding the first layer of the solenoid coil. The internal cross-section of the core tube may be made irregular, or with a keyway, and the lower end may be internally threaded to take an adjustable armature stop, preferably magnetic. The die-casting is preferably made of a zinc alloy, and a typical assembly is described with reference to Fig. 1 (not shown). The Provisional Specification states that the back stop 8 may be cast with a thin section so as to be adjustable bybending.
Patent GB-838600-A (GB)
Title: Plate locating mechanism for stereotype plate finishing machine
IPC: B41D5/00
Filed: 1958-04-09
Abstract: 838,600. Printing surfaces. MIEHLEGOSS-DEXTER Inc. April 9, 1958 [ApriI 15, 1957], No. 11301/58. Class 100(2) A method of making partial size stereotype printing plates consists in casting a full sized semi-cylindrical stereotype plate with the impression for at least one partial size plate at the periphery thereof, milling in the underside of such plate and adjacent at least one straight edge thereof a row of tension lock-up pockets, sawing the plate into sections thereby to produce individual partial size plates and milling a second row of tension locked-up pockets adjacent the newly sawn edge of the or each individual plate bearing the impression while locating the plate by means of the tension lock-up pockets previously milled on the full-sized plate. The machine for milling the tension lock-up pockets in the semi-cylindrical plate may be of the type described in Specification 838,598 and includes milling cutters 23 and a saddle 24 on which an inverted stereotype plate 25 may be held by clamps 29 (Fig. 5). The machine, however, additionally includes engaging members 43, 44 for tabloid size plates. After the full sized plate has been milled it is sawn in two. The members 43, 44 are then rotated to the position shown in Fig. 6 to engage the pockets adjacent the milled edge of the tabloid plate 41 whilst pockets are milled in the sawn edge by the cutters 23. Two hooks 43 are provided and one biasing finger 44. The hooks 43 are pivotally mounted on rods 49 supported by bodies 51 carried in recesses 53 formed in the saddle 24. The hooks are held in each of the two positions by springs 68 which co-operate with nose portions 66 on the hooks. The biasing finger 44 is rotatably mounted on a shaft 70 journalled in the saddle. An operating handle is provided for turning the shaft 70. A torsion spring 71 has one end connected to the shaft 70 and the other end 74 bears on the finger 44 to urge it, when the shaft is rotated clockwise, as viewed in Fig. 6, against the edge of the tabloid plate 41. In a second embodiment the hooks 43 are replaced by hooks 87 (Fig. 13) which slide vertically in the saddle 85, are normally urged by springs 89 to a position beneath the surface of the saddle, but may be raised to engage a tabloid plate by cams 93 on shafts 95 which may be rotated by means of key members inserted through suitable openings in the saddle. In a further embodiment, Fig. 18, two tabloid plates may be held on the saddle and milled simultaneously. Two sets of rotatable plate engaging hooks 131 rotatable on shafts 126, 127 are provided which are held in position, similarly to hooks 43. by a spring 133. A plate retaining member in the form of a plunger 134 is provided which is operated by a handle 136. The plunger 134 is held in non-operative position by means of spring-loaded detents. Specifications 628,134, 688,566 and 838,597 also are referred to.
Patent GB-455013-A (GB)
Title: Apparatus for controlling the pressure in closed vessels or systems
IPC: D06F43/00
Filed: 1935-04-12
Abstract: 455,013. Automatic control systems. HETZER, R. A., 7136, Wallace Avenue, Madeira, Ohio, U.S.A. April 12, 1935, No. 11424. [Class 38 (iv)] Fluid pressure.-The pressure within a closed vessel or system, such as for treating fabric with a volatile detergent, is maintained at a predetermined value by pressure responsive means 12, which under excess pressure conditions energizes a coil 31 to close the circuit of a motor 5 driving a pump whereby vapour is withdrawn from the vessel 1 and stored in a receiver 9. Under low pressure conditions the pressure responsive means energizes a solenoid 19 to open a valve permitting vapour from the receiver 9 to pass into the vessel 1. A switch 45 closes when the door of the vessel is opened, so that the pump 7 may be started if the pressure in the receiver is not high enough to open a switch 25 in series with the switch 45 and the coil 31 of the pump-motor switch. The system is adapted for use with treating systems such as are disclosed in Specification 355,809, [Group III].
Patent GB-1330445-A (GB)
Title: Process of tobacco stream manufacture
IPC: A24C5/18
Filed: 1972-03-10
Abstract: 1330445 Feeding tobacco ROTHMANS OF PALL MALL CANADA Ltd 10 March 1972 [25 March 1971 27 Aug 1971] 11425/72 Heading A2C A falling broad stream 10 of tobacco particles is formed into a plurality of narrow substreams 28, 28, 38, 48 which are then combined to form a filler rod 30 for cigarettes. The broad stream 10 falls onto rotating suction wheels 16, 18, 20, 22 which deposit the substreams formed thereon, one on top of the other, on a conveyer 12. The suction applied to wheel 20 is cut off in the position shown so that the tobacco particles in the substream 38 are projected into the tobacco stream 14 being built up on the conveyer 12 resulting in the larger ones of the tobacco particles of the substream 38 becoming embedded substantially radially of the stream 14. The wheel 22 has spaced porous portions 42 in its peripheral wall 40 so as to provide spaced apart substreams 48 for locally increasing the density of tobacco at intervals in the rod 30 for providing dense end cigarettes. A wheel of the kind 22, if fitted with a movable vacuum shoe 46 and a detector means upstream of the depositing point of this wheel, could be used to compensate for fluctuations in the density of the stream 14.
Patent GB-970834-A (GB)
Title: An improved method and apparatus for the production of granulated fertiliser
IPC: B01J2/14
Filed: 1963-03-22
Abstract: A granular fertilizer is formed by feeding solid ammonium sulphate and potassium chloride through a shoot into an outer dish 10 of an inclined, rotary dish granulator, while 50% P2O5 phosphoric acid and anhydrous ammonia were added to the reaction pan 12 through a fan-jet atomizer and a submerged perforated <PICT:0970834/C1/1> pipe 28 respectively.  The product, after drying, had a moisture content of 2 to 3%, and 75 to 80% of the granules were in the size range of 1.5 to 3.5 mms. diameter, and 90% in the range of 1 to 4 mms.
Patent GB-1506934-A (GB)
Title: Derivatives of 3-amino-dihydrothiophen-2-one
IPC: A61K31/22
Filed: 1975-03-19
Abstract: 1506934 Derivatives of 3-amino-dihydrothiophen-2-one J BLUM 19 March 1975 [28 March 1974] 11481/75 Heading C2C  Novel therapeutic and cosmetic compounds of the formulae where in Formula (A) R is an acyl group having more than 4 carbon atoms, other than benzoyl, nicotinoyl, substituted benzoyl and substituted cinnamoyl; and where in Formula (B) X is O or S, each of R and R<SP>1</SP> is H or an acyl group, (R and R<SP>1</SP> being either the same or different but not both H), and R<SP>11</SP> is H or substituted or unsubstituted alkyl; provided that when X is O, R is lower (C 1 -C 4 ) acyl or benzoyl and R<SP>1</SP> is H, then R<SP>11</SP> has at least two carbon atoms; and pharmaceutically acceptable basic or acidic, organic or inorganic salts thereof; are made by standard methods.
Patent GB-987750-A (GB)
Title: Hinge device for pivotable windows
IPC: E05D7/085
Filed: 1964-03-18
Abstract: 987,750. Hinges for windows. REVENTA A. B. March 18, 1964 [April 24, 1963], No. 11542/64. Heading E2F. A hinge device has a plate 1 attached to a window and two pins 6, 7 on this plate run in an arcuate channel 5 of a plate 2 which is attached to the window frame. Between the pins 6, 7 and sliding in the channel 5 is a brake block 8 having- a channel 9 cut in it to engage with the hook 11 of a spring loaded catch 10 which limit the arcuate movement of the brake block and so retain both pins in the channel 5 or allow pin 7 to leave the end of the channel and facilitate rotation of the window about pin 6.