baber/WOPTO huggingface dataset:
Patent GB-642311-A (GB)
Title: Improvements in and relating to heat-exchange apparatus
IPC: F28D1/03
Filed: 1947-03-10
Abstract: 642,311. Congealing liquids; cooling liquids and granular materials. GEVAERT PHOTO-PRODUCTION N. V. March 10, 1947, No. 6593. Convention date, March 9, 1946. [Classes 29, 64(ii) and 64(iii)] A parallel-sided hollow plate 1 for cooling granulated solids and liquids, especially those which set into gel or other semi-solid form, has its inlet 2, outlet 3 and an internal baffle 12 arranged so that cooling medium can be injected under pressure into it and forced to swirl over its whole interior wall surface, the outlet 3 being greater in crosssectional area than the inlet 2 to prevent a pressure build-up in the plate and consequent bulging of its walls. A number of parallel plates 1 are mounted vertically to form a unit which is vertically immersible in and easily withdrawable from a liquid which has been cooled by the unit into a solid or semi-solid mass. The walls of the plate may be corrugated. In the form shown, the plates 1 are mounted on a carrier which can move vertically on a pillar 15. The carrier comprises a slide 16 and two beams 6, 7 on which rest two projecting parts 4, 5 of each plate 1. Cooling liquid from the outlet 3 is discharged into a tank 8, shields 13, 14 being provided to prevent splashing. The distance between adjacent plates 1 may be adjusted and projections 20 may be provided at one or both sides of the plates to limit this distance. Alternatively, spacing blocks may be arranged on a movable bar. A hydraulic press 18 is provided at each side of the container 17 to force the cooling chambers out of the cooled, jellified mass. The cooling unit may be arranged to swivel on the pillar 15 to serve successively a number of containers arranged radially around the pillar.
Patent GB-621105-A (GB)
Title: Improvements in or relating to dispensing apparatus for liquids
IPC: B67D1/00
Filed: 1944-04-11
Abstract: Apparatus more particularly for dispensing beverages, in which p  a liquid mixture is produced and the pressure of one liquid discharges another is identical with that described in Specification 632,565. The invention resides in a discharge nozzle having capillary passages.
Patent GB-1366613-A (GB)
Title: Electroacoustic transducers
IPC: H04R11/06
Filed: 1972-02-14
Abstract: 1366613 Moving armature transducers INDUSTRIAL RESEARCH PRODUCTS Inc 14 Feb 1972 [17 May 1971] 6760/72 Heading H4J In an electroacoustic transducer gradual or soft saturation of the armature system is obtained to reduce armature clatter or ringing caused by the armature striking the magnets. The armature system includes an elongate magnetic armature 23 having a vibratable end 25 and a pivot end 27. Magnets 33, 35 (Figs. 1, 2) and a coil 21 are for causing the armature 23 to vibrate. The pivot end 27 of the armature 23 is mounted on a base plate 15 and flux conductive legs 29, 31 (Fig. 3) extend transversely from the pivot end to develop a force tending to restore the armature 23 to its neutral position. The crosssectional dimensions of the legs 29, 31 are less than the cross-sectional dimensions of the armature 23. A first flux path for the armature system is traceable from the pivot end 25 of the armature 23 through the legs 29, 31, the base plate 15, the magnets 33, 35 to the free end 25 of the armature 23 to provide a low reluctance path for flux flow, the legs 29, 31 being magnetically saturated before the armature 23 saturates. A second and higher reluctance path is established from the pivot end 27 of the armture through a gap formed by an elastomeric material 69 (Fig. 4) between the region of the pivot end 27 and the base plate 15 when the first flux path saturates. The pivot end 27 of the armature 23 is held by a wire clip 67 (Fig. 4) which elastically clamps the armature end 27 on a pivot support which in turn is spot welded on base plate 15. The elastomeric material 69 prevents metal-tometal contact. Diametrically opposed trapping members (66, 68), Fig. 7 (not shown), may limit movement of the armature system, and blocks (70, 72) may dampen movement of the legs (29, 31). In an altenative armature system (Fig. 10, not shown) the legs are in a plane perpendicular to the armature and the characteristics of the armature system may be changed by trimming the top surfaces of the legs. In another armature system (Fig. 11, not shown) the legs (29B, 31B) each extend only as an arc of a ring and are fixed to plate 15 at spaced points yet another armature system (Fig. 11a) not shown has an arcuate piece of spring material fixed at a mid-point to the pivot end of the armature. The armature end 25 is connected by a drive pin 47 to a cone-shaped diaphragm 63 (Fig. 9) formed with an outer skin of metal or plastics film 95, 97. The interior is filled with hollow plastics spheres 99 lightly coated with adhesive to produce a rigid mass. The free end of drive pin 47 is cemented into the mass of spheres. A surround 71 secures the diaphram 63 to the base plate. The transducer includes a cup-shaped case (75), Fig. 8 (not shown), having a cover 79 into which the motor fits diagonally. A front cavity (87) is open to atmosphere through ports (73). A back cavity (89) is vented through ports (76) covered with cloth (78) to improve low frequency response. The device may be used as a transmitter or receiver.
Patent GB-160079-A (GB)
Title: Improvements in pencil holders
IPC: B43K23/00
Filed: 1920-03-05
Abstract: 160,079. Jackson, F. March 5, 1920. Pencil-holders.-In a pencil-holder of the kind comprising only a split sleeve slidable within a casing which compresses the sleeve on the lead or pencil, the sleeve 1 is formed with a shoulder 3 engaging an indentation and ccnstriction 4 formed on, and integral with, the casing 2, to prevent separation of the sleeve and casing. The other end of the tubular casing is either spun over or closed by a separate cap 5, forced into the casing and prevented from returning by roughened sides.
Patent GB-525855-A (GB)
Title: Improvements in or relating to luminous signs
IPC: G09F9/313
Filed: 1939-03-02
Abstract: 525,855. Monogrammic signs. NEOGRAPH, Ltd., and KNEPPER, F. March 2, 1939, No. 6812. [Class 118 (ii)] A luminous sign of the kind described in Specification 523,192 comprises a single electric discharge tube bent to such a configuration as to enable any one sign of a series, such as letters or numerals, to be displayed in a distinctive manner by rendering luminous one or more portions of the tube. The tube is provided with electrodes at intervals along its length in order to enable any desired portions to be rendered luminous and parts of the tube may be blackened or otherwise rendered opaque. The drawing shows a suitable configuration for the tube.
Patent GB-473130-A (GB)
Title: Improvements in and relating to woodworking planes
IPC: B27G17/02
Filed: 1936-03-06
Abstract: 473,130. Planes. WALKER, J. D., and MATHIESON & SONS, Ltd., A. March 6, 1936, No. 6820. [Class 61 (ii)] A plane in which the cutting iron is mounted so as to enable it to be tilted backward or forward to vary its angle to the surface on which it is working and also to enable the cutting iron to be adjusted up or down and to be tilted in its own plane comprises a bracket 3 with upright, and inclined parts 3a, 3b in which are mounted rotatably nuts 7, 4 geared together by mitre wheels 10 and rotated by a thumb wheel 12 on the nut 4, the nuts operating eyebolts 13, 14 pivoted to supports 15, 18 for the plane iron 16 ; rotation of the thumb wheel 12 causes a differential movement of the two supports 15, 18 resulting in a backward or forward tilting of the iron 16. The support 15 slides on the sole plate 2 and has a hemispherical recess to receive a hemispherical body 17 with a flat upper face on which the plane iron rests. The upper support 18 is in the form of a barrel in which is located a small annulus 26 engaging the head 25 of the screw connecting the plane iron to the break iron 24, the annulus 26 having mounted therein a rod 21 having a screw-threaded end 20 threading into a hole in a second annulus 19. Axial rotation of the rod 21 moves the plane iron up or down to vary the depth of cut and lateral movement of the rod permitted by a slot 22 in the barrel 18 causes tilting of the plane iron, as shown in Fig. 4. The iron is clamped after adjustment by a wedge 28.
Patent GB-720202-A (GB)
Title: Improvements in and relating to thread winding machines having automatic knot-tying and supply-bobbin changing mechanism
IPC: B65H69/00
Filed: 1952-03-17
Abstract: 720,202. Winding thread. REINERS, W. March. 17, 1952 [May 15, 1951], No. 6843/52 Class 120 (2). A thread winding machine is provided with a plurality of winding mechanisms 1 past which are moved automaticknot-tying and supply-bobbin changing control devices 3, the devices 3 passing any one unit 1 at time intervals shorter than the period required to exhaust a supply bobbin. A supply bobbin 5 from a container 4, at each unit 1, is supplied to the unit only after the previously supplied one has become exhausted and the devices 3 are operated only at those units where a thread breakage has occurred or the supply bobbin has become exhausted. This enables all other units 1 to continue winding uninterruptedly.
Patent GB-1292222-A (GB)
Title: Improvements in or relating to machines for the automatic honing of blind-end bores
IPC: B24B33/06
Filed: 1970-02-13
Abstract: 1292222 Honing ROTO-DIESEL 13 Feb 1970 [17 April 1969] 6964/70 Heading B3D An automatic honing machine for blind end bores comprises an electric motor 2, whose drive shaft 3 actuates an extensible hone 10 through a tie rod 11 having a frusto-conical portion for governing radial extension of the hone 10, the motor 2 having a pivotably mounted stator 5 whose reaction torque against resilient means 8, Fig. 2, actuates means for axially shifting the rod 11, so that the radial hone extension is governed by its operative load torque. A workpiece P is held in a support 14 for reciprocation relative to the hone 10 by means of a fluid-pressure ram 17, and on starting the honing cycle, with the hone 10 freely rotatable in the bore, the pivotal reaction of the stator 5 causes a probe 23b to open a fluid valve 23, causing retraction of a spring-loaded ram 22. A hammer lever 21 is thus caused to fall into engagement with a nut 12, screwed on the shaft 3 and keyed axially to the rod 11, prevention of free nut rotation causing the rod 11 to be shifted to expand the hone until engagement with the bore reduces the driving torque, and hence the stator displacement, thus closing the valve 23. A valve (18a) or (18b), Fig. 4 (not shown), acts to restore pressure to the ram 22 at the end of the stroke of the ram 17, allowing retraction of the hammer lever 21 and enabling a further honing stroke to be initiated. A timing system may control the operating cycles of the motor 2.
Patent GB-1452460-A (GB)
Title: Curing of unsaturated polyester resins
IPC: C08F4/40
Filed: 1975-02-20
Abstract: 1452460 Initiator for unsaturated polyester resin AIR PRODUCTS & CHEMICALS Inc 20 Feb 1975 [25 Feb 1974] 7154/75 Heading C3P An initiator for an unsaturated polyester resin comprises an organic peroxide and a complex of triethylene diamine with both cobalt and manganese salts.
Patent GB-142976-A (GB)
Title: Electrical contactors or switches
IPC: H01H50/54
Filed: 1919-03-22
Abstract: 142,976. Brooke, W., and Kerr, E. M. March 22, 1919. Electro-magnetic switches; contacts.-In contactors, instead of mounting an accommodating spring-controlled contact on the pivoted armature e, the accommodating-contact a<1> is mounted in the place of the usual fixed contact on the switchboard, and the armature carries a rigidly-secured contact e<1>. The accommodating-contact is secured to a block a pivoted at b<1> in a bracket b mounted on the switchboard. It is urged towards the armature contact by a spring d, and is connected to the terminal bolt by a copper shunt g. The block a is cast of non-ferrous metal in finished form by the die-casting process. 366
Patent GB-550016-A (GB)
Title: Improvements in or relating to electron tubes for amplifying high-frequency oscillations
IPC: H03F1/08
Filed: 1941-06-06
Abstract: 550,016. Thermionic valves. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 6, 1941, No. 7197. [Class 39 (i)] To reduce input damping in a high frequency amplifier the distance from the control grid g<1> to the screen grid g<2> is at least 10 times the distance from the control grid to the cathode k, the screen grid being the next electrode to the control grid as viewed from the cathode. The construction is particularly useful in a push pull arrangement with divided control grid. The reasons for requiring the ratio set out above are explained mathematically in the description. The subject-matter is identical with that of Specification 14975/46 as open to inspection under Sect. 91.
Patent GB-487527-A (GB)
Title: Improvements in brackets for luggage racks
IPC: B61D37/00
Filed: 1937-03-12
Abstract: 487,527. Vehicle luggage - racks. BUNN, C. W. March 12, 1937, No. 7237. [Class 103 (ii)] [Also in Group XIV] A bracket for luggage-racks of the kind described in Specification 449,665 comprising a horizontal arm 10 connected to one side of the vehicle body by a lug 11 and an inclined arm 24 connected to the roof by a lug 28 has the inclined arm separate from and adjustably connected to an upturned end 13 of the horizontal arm. An ornamental cap 14 which may cover the joint has a lug 15 at the rear shaped to engage the bend 20 and secured to the horizontal arm by a bolt 16 so that the cap is spaced from the end of the arm to allow insertion of the longitudinal rail 19 and the base 22 of the rack. The lower end of the inclined arm 24 fits between the upturned end 13 of the horizontal arm and the cap and has a rib 25 engaging a longitudinal slot in the end 13. Fixed to the end 13 adjacent the slot are two angle pieces 29 forming jaws apertured at 30. The bracket is assembled on the vehicle in the correct position and a hole through the rib 25 then drilled in register with the holes 30, and a bolt passed through these holes to fix the bracket in position. The lugs 11, 28 may be hinged to the arms and the parts 10, 24 may be pivoted together.
Patent GB-558069-A (GB)
Title: A torpedo screen for a ship
IPC: B63G9/00
Filed: 1943-05-08
Abstract: 558,069. Torpedo screens. ARGYRIS, S. May 8, 1943, No. 7307. [Class 113 (i)] A torpedo screen for a ship comprises rotatable groups of spaced bow-shaped wires or like flexible members 9, 10 carried by screws 8 and rotated by the action of the ship's movement. The wires may rotate at the same or different speeds and in the same or opposite directions, and they may be connected by switch 7 and eyes 6 to wires 4 carried by guyed booms 1 and controlled by winches 5.
Patent GB-558659-A (GB)
Title: Improvements in or relating to well drilling
IPC: E21B33/124
Filed: 1942-06-01
Abstract: 558,659. Well-drilling. SHELL DEVELOPMENT CO. June 1, 1942, No. 7399. [Class 85] A plug adapted to be moved within a well-drilling string by fluid circulation comprises a mandril 1, Fig. 4, with threaded ends, and opposed hydraulic cups 5, 6, mounted thereon, one cup 5 being rigidly held by a nut 25, a thimble 20 and a follower 26 held by screws 31, and the other cup 6 being movable within limits defined by nuts 35, 36, and a spacer or resilient means such as a spring 40 or a rubber &c. packing sleeve 78, Fig. 5, The cups 5, 6, are of material such as natural or synthetic rubber, orcanvas which may be rubberised and may be reinforced by inner metal rings 10 and outer wires 12 normally held inwards by rings 14 of spring steel etc.; multiple rings 5, 6. may be used. For jet-washing a borehole, the plug is lowered into a drill-string 51, Fig. 2, by circulation fluid, which expands the cup 5, and on contact of the plug with a stop 57 or the drill bit 53, the cup 6 is depressed to clear lateral jetting holes 55; on reversing the circulation to remove detritus, the cup b is expanded; and the circulation fluid raises the plug. For plugging a drill string when formation pressures are encountered, Fig. 5, the plug is inverted and attached to a mandril 71 with wedge slips 72 which prevent upward movement within the drill string and allow the latter to be raised under control; the gripping means 71, 72, may also be used below the plug, or may be replaced by dog-mechanism or the like between the cups 5, 6. In Fig. 6, the plug is connected to a core barrel 90 which may be lowered therewith in a drill string 51 having a thickened part 102 receiving the cup 5 in its lowest position, slots 103 allowing passage of circulation fluid; after drilling a core, the circulation fluid is reversed to raise the plug and core barrel. The plug may be used with other devices. The Specification as open to inspection under Sect. 91 states also that both cups 5, 6, may be fixedly attached adjacent the respective ends of the mandril; this subject-matter does not appear in the Specification as accepted.
Patent GB-568049-A (GB)
Title: Improvements in or relating to opposed piston internal combustion engines
IPC: F02B75/28
Filed: 1943-05-11
Abstract: 568,049. Opposed piston engines. SULZER FRERES SOC. ANON. May 11, 1943, No. 7446. Convention date, May 15, 1942. [Class 7 (ii)] An opposed piston internal-combustion engine having two banks 5 of cylinders, the pistons in which act through four crank-shafts and gears 10, 10a, 11, 11a, on a single central toothed gear-wheel 12, is arranged so that the cranks in the two banks are relatively displaced by approximately half the angle alpha at which the cranks on each shaft are set in order to avoid excessive torsional vibration at a critical speed close to the speed of normal operation. In Fig. 1, the cranks of the left-hand bank of 6 cylinders has the equispaced cranks of the lower crank-shaft set back by a small angle f in relation to those of the upper crank-shaft. On the right of the Figure, the crank sets A<1>, S<1> are respectively spaced by an angle alpha/2 from the corresponding cranks of the sets A, S. In a modification, Fig. 3, the axes of the two banks are inclined to each other, but, as before, the cranks A<1>, S<1> are respectively displaced from the cranks A, S by an angle alpha/2.
Patent GB-904522-A (GB)
Title: Improvements in or relating to roof supporting means for mines
IPC: E21D15/60
Filed: 1959-03-04
Abstract: 904,522. Mine-roof supports. EGGEMANN, W., and CAMPENHAUSEN, E. VON, [trading as SHWARZ KOMM.-GES., HERMANN]. March 4, 1959 [March 5, 1958], No. 7465/59. Class 20 (2). [Also in Group XXX] A pit-prop 10 is advanced step-wise towards an armoured face conveyer 28 by a reciprocating hydraulic ram 23 acting on a rail 27, coupled to the conveyer at 29 through the intermediary of a unidirectional means, Fig. 4, which locks itself to the rail by the wedging action of the member 33 when the ramrod 24 is urged to the left, but which freely slides on the rail when the ramrod is urged to the right. The prop may be hydraulic with its own generator and this source may be used to energize the ram 23. A system with the rails and the unidirectional means duplicated may be used also to advance the rails and the conveyer 28, when the prop 10 has been locked in position. Figs. 5, 6 and 7 (not shown) are alternative unidirectional means.
Patent GB-538500-A (GB)
Title: Improvements in or relating to roller track chains for vehicles
IPC: B62D55/092
Filed: 1940-04-26
Abstract: 538,500. Driving-chains. SEILER, K. April 26, 1940, No. 7538. Convention date, April 27, 1939. [Class 24] [Also in Group XXXI] In order to lubricate the joints of an endless track or chain the joint pin 1 carrying an outer link 8 is formed with a peripheral groove 6 extending through about 180 degrees, this groove being engaged by a member 13 carried by a bearing sleeve 9 which surrounds the pin and carries an inner link 10, so that when the sleeve oscillates on the pin due to hinge movement of the links grease is forced by the member 13 along the groove to other lubricating grooves such as 7, 5. In the construction shown grease is introduced by a grease gun through a ball valve 3 into a central bore 2 leading through radial bores 4 to the grooves 5, 7. An outer sleeve 11 may act as a roller to engage the sprocket teeth and may be provided with lubricating grooves communicating with the grooves 5. Grease is retained by packing rings such as 20, and spring rings 14 are provided to retain some of these packings in place. The members 13 may be cylindrical as shown, or may be rectangular blocks to engage wide grooves 6. Rollers 17 engaging fixed rails 25 are mounted on the pins 1 by roller bearings 18, the inner and outer races of which are formed by the pins and rollers themselves to economize space.
Patent GB-462497-A (GB)
Title: Improvements in miniature upright pianos
IPC: G10C3/08
Filed: 1936-05-13
Abstract: 462,497. Pianofortes. SCHIMMEL, W. March 13, 1936, No. 7592. Convention date, Jan. 7. [Class 88 (ii)] In a miniature upright piano, the striking line b of the hammers is bent or curved, and the bass strings c are disposed approximately horizontally passing over a frame bridge s to the wrest-plank. The longest strings of the middle register may be transferred to the bass set c. The sound board f extends into the lower right-hand corner. The treble end of the bridge e is undercut and the overhanging portion carries an auxiliary soundboard g.
Patent GB-1200507-A (GB)
Title: Production of foundry cores
Inventor: BAYLISS DEREK RANDOLPH
IPC: B22C5/04
Filed: 1968-02-16
Abstract: 1,200,507. Mixing plant; controlling. BRITISH MOTOR CORP. and BORDEN CHEMICAL CO (U.K.) Ltd. 13 Feb., 1969 [16. Feb., 1968], No. 7592/68. Heading B1C. [Also in Division B3]  In a foundry core making machine, sand from; a hopper 1 is delivered to two screw mixers 5, 6 through variable aperture valves 2. Resin is fed to the mixer 5 and hardener to the mixer 6. The two mixes formed are delivered to separate hoppers ;17, 18 then to a final paddle mixer 27 simultaneously by a double slide valve 20. When the constituents of the final mixture are thoroughly blended a further valve 31 is opened to admit the mixture into a blowing chamber 40. A valve (not shown) at the base of the funnel 35 below mixer 27 closes the funnel and the final mixture is 'blown into a corebox 41. All the valves operate to a timer controlled sequence. The paddle mixer 27 is provided with compressed air jets for cleaning between mixing operations.
Patent GB-934578-A (GB)
IPC: C07D213/20
Filed: 1962-02-27
Abstract: The invention comprises pyridinium salts of the general formula: <FORM:0934578/IV(a)/1> in which n is 1 or 2, R1 represents a C5-22 alkyl radical, R2 and R3 represent chlorine atoms and, when n is 2, R3 may also be a hydrogen atom and A represents an anion; the preparation thereof by quaternating an appropriate 4-alkyl pyridine with a reactive ester of an alcohol of the formula <FORM:0934578/IV(a)/2> and if desired converting a resulting salt into the base, or a resulting base into another salt; and disinfectants, preserving agents and pharmaceutical compositions containing them.  4-n-Nonylpyridine is prepared from g  picoline and octyl bromide in the presence of sodamide.  Similarly are prepared 4-n-undecyl-, 4-n-heptadecyl- and 4-n-heneicosyl-(111)-pyridine. Pharmaceutical compositions, preserving agents and disinfectants comprise the pyridinium salts in addition to an inert carrier. The compositions may be in the form of ointments, creams, tablets, dragees, capsules, solutions, suspensions or emulsions.