baber/WOPTO huggingface dataset:
Patent GB-710978-A (GB)
Title: Improvements relating to photographic lens shutters
IPC: G03B9/70
Filed: 1952-02-04
Abstract: 710,978. Photographic shutters with built-in flashlamp synchronizers. DECKEL, H., and DECKEL, F. W. Feb. 4, 1952 [April 10, 1951], No. 2898/52. Class 98(1) In a photographic shutter having one or more groups of flashlamp contacts, the or at least one group of which is settable to close the flashlamp circuit at a variable predetermined time prior to the release of the shutter to compensate for the lamp lag, a member mounted in the shutter casing and having a timing cam disc with several timing faces acts on the setting element of the settable contact and is connected with the exposure time setting element of the shutter to move simultaneously therewith, said connection being disengageable to permit relative adjustment between the cam disc and the exposure time setting element so that the contacts are adjustable with a number of selectable ranges by setting the shutter exposure time. As shown, the shutter is provided with two sets of flashlamp contacts. One set for lamps of finite lag comprises an adjustable stationary contact lever 28 and a movable contact pin 32 on a spring driven tripping member 34 for the lever holding the shutter tensioned, the driving spring for the member 34 being tensioned by the shuttertensioning member 12. The other set for instantaneous lamps comprises a projection 72 on the shutter tensioning member and a stationary contact 68 which is held clear of the path of the projection 72 against an insulated block 70 when lamps of finite lag are used by an insulated arm 66 of a lever pivoted at 58 and engaging a ring 48 set according to the lamp used against one of four marks (not shown) on the exposure time setting ring 16, three F, M, S, for different lag lamps and one X for instantaneous lamps. To ensure accurate synchronization of the flash with the shutter opening so that the available illumination is fully utilized, the adjustment of the contact lever 28 depends not only on the choice of lamp but also on the exposure time and the ring 44 fixed to the ring 48 and bearing the adjusting cam 42 having faces f, m, s, x is connected to the time setting ring 16 by spring detents on the ring 16 engaging in recesses in the ring 48. When this ring is set for instantaneous lamps, the lever 28 is engaged by a portion x of the cam so that it is held clear of the contact pin 32 until after the closure of contacts 68, 72, the lever arm 62 then being engaged in a recess in the ring 48 so that the contact is freed to lie in the path of the setting ring projection 72. Specifications 661,869 and 686,136 are referred to.
Patent GB-408082-A (GB)
Title: Improvements relating to disconnectible pipe couplings
IPC: F16L37/23
Filed: 1933-01-31
Abstract: 408,082. Pipe couplings. SERSHALL, S. H., 64, Florence Road, Erdington, Birming- ham. Jan. 31, 1933, No. 2939. [Class 99 (i).] In a pipe coupling in which balls 11 are housed in slots 7<a> of a socket 7 and engagement of the balls in a groove of a spigot 4 is enforced and disengagement is permitted by movements of a sleeve 12, a packing ring 10 is rolled during the act of coupling up the serrated conical surface of tubular member 9 into a groove 4d in the spigot. The tubular member 9 is secured in the socket and serves to lift a ball valve 6 off its seat 4<a>.
Patent GB-1091132-A (GB)
Title: Method of and apparatus for pre-heating powdered material
IPC: F27B7/20
Filed: 1965-01-22
Abstract: 1,091,132. Preheating cement raw material. DYCKERHOFF ZEMlENTWEBKE A.G. Jan. 22, 1965 [Jan. 24, 1964], No. 2948/65. Heading F4B. A shaft type preheater for feeding a rotary kiln for cement production comprises a number of turbulence chambers each having two opposed plane vertical walls, and the other walls formed of staggered inwardly concave surfaces 4 with the radius of curvature of each surface decreasing from bottom to top of a stage. The lower end of each surface is in dined at least 60 de grees to the horizontal and its edge is located opposite the central part of the other curved wall. The maximum and minimum crosssections of the stages in: crease upwardly, the gases pass from the upper part of the preheater to a cyclone separator 3, and preheated [material is fed directly to the kiln by the inclined surface of the lowest stage 13. The form of the walls causes vortices with horizontal axes to entrain the material falling from the edges of the walls of the preceding stage. The lower and upper parts of each wall stage may be separated by a plane vertical part, Fig. 2, not shown.
Patent GB-138608-A (GB)
Title: Improvements in power transmission devices
IPC: F16H39/42
Filed: 1920-01-30
Abstract: 138,608. Arato, A. Jan. 30,1919, [Convention date]. Void [Published under Sect. 91 of Crank linkages.-The pump rod 8, Fig. 1, of an hydraulic transmission of power apparatus may be operated from a pivoted lever 9 linked to a crankpin 12, the stroke being varied by moving the pivot of the lever or the point of connexion of the rod 8 with the lever 9 by screw gear 17. In a modification, the pump piston is operated from a crank-pin 12<1>, Fig. 8, carried by a block 19 adjustable in a diametral slot by means of a lever 20, rod 21, and lever 23.
Patent GB-328570-A (GB)
Title: Improvements in ladies' knickers
IPC: A41B9/04
Filed: 1929-01-29
Abstract: 328,570. Gilbert, H. Jan. 29, 1929. Knickers.-Ladies' knickers of the wholly closed type have the seam which extends from between the legs up the front and back reinforced by a piece of material 14 of the shape of an arrow and extending from the waist band at the back to a point 18 on the seam in the front, the edges of the reinforcement diverging as they approach the seams 17 extending across the insides of the legs, and then converging to the point in the front seam. The reinforcement may be continued at 19 to the waist band in front. The waist-band 20 in front is flat and inextensible, while at the back it is gathered on to elastic.
Patent GB-1006456-A (GB)
Title: Improvements in and relating to fluorination
IPC: H01B3/24
Filed: 1963-01-24
Abstract: Fluorinated alkanes are produced by contacting hydrogen fluoride and a halocarbon of the formula <FORM:1006456/C2/1> in which X is chlorine, bromine, or iodine' R1 is an alkyl radical, R2 is hydrogen or an alkyl radical, with a fluorination catalyst at elevated temperature.  The catalyst may be activated alumina, hydrous chromic oxide, hydrous aluminium oxide, hydrous ferric oxide, a hydrous rare earth metal oxide or a metal halide.  The temperature may be between 100 DEG  and 400 DEG  C. Various halocarbons are mentioned and the reaction may be used to separate 1-chloropropene, which is uneffected, from 2-chloropropene.
Patent GB-1121592-A (GB)
Title: Improvements in or relating to chairs
IPC: A47C1/0355
Filed: 1966-01-24
Abstract: 1,121,592. Dental chairs. A. G. SVARD. 24 Jan., 1966 [25 Jan., 1965], No. 3057/66. Heading A4J. In a dentist's chair, a linkage 12, 14 and 20, having fixed pivots 18 and 24, is arranged to increase the angle V, V1 between thigh and shank supports 12 and 14, on moving them from the sitting to the reclining position. The motion may be effected by a hydraulic cylinder (60). The length of link 20 may be varied by hydraulic means or, alternatively, the distance between the ends of a two-part articulated link may be varied by altering the included angle. The back rest may be independently or simultaneously lowered by hydraulic cylinder (54). The back rest includes an angularly adjustable head rest (44) and is divided into two mutually extensible sections 30, 32. Hydraulic cylinder (50) moves section 30 relatively to section 32. Fore-arm rests (42) are provided for the occupant and hand rest (46) for the dentist. The adjustments may alternatively be effected by manually operated screw and nut means.
Patent GB-178580-A (GB)
Title: Improved apparatus for actuating tableaux and other curtains in theatres and like buildings
IPC: A63J1/02
Filed: 1921-01-25
Abstract: 178,580. Oliver, A. H., and Clarke, W. E. Jan. 25, 1921. Curtains, drawing and suspending. -Staga or other curtains are raised and lowered by ropes passing round an electrically-actuated drum, controlled by a switch in any part of the building, and a balance weight connected to a safety device is employed to balance the weight of the curtain. In the form shown in Fig. 1, th drum 7 is operated by a worm-wheel 15 from an electric motor 17, and the balance weight 9 is attached by a rope 10 to a spring-controlled drum 11 adapted to prevent the weight from falling to the ground in the event of breakage of the curtain rope 3a while permitting the weight normally to rise and fall as the curtain is lowered or raised. The weight 9 may be attached to a separate rope passing round an extension of the drum 7 instead of being attached to the end of the rope 3<a>, as shown, and the drum 7 may be tapered so that the torque on the drum is approximately constant as the curtain is raised. The rope 3<a> may bekept taut by weight attached by separate orpes to the ropes 3<a> and hanging down on the opposite sides of the pulleys 5, 6.
Patent GB-370093-A (GB)
Title: Improvements in or relating to rib-knitted fabric
IPC: D04B1/26
Filed: 1931-02-02
Abstract: 370,093. Stockings and socks. SPIERS, Ltd., W. and SPIERS, W., XL Works, Walnut Street, Leicester. Feb. 2, 1931, No. 3265. [Class 141.] A plated sock or like article, comprises a 1/1 rib top 1, a leg 2 and instep of appreciably broader rib, e.g. 15/6 and a plain foot bottom 6, heel 7 and toe 8. The plain wales in the leg and instep have also pattern effects produced by reverse plating as shown. Specifications 277,725, [ C l a s s 74 (ii), Knitting &c.], 348,223, and 366,185, [G r o u p VIII], are referred to.
Patent GB-413040-A (GB)
Title: Improvements in or relating to shuttle guards for looms
IPC: D03D49/58
Filed: 1933-02-03
Abstract: 413,040. Looms. SENIOR, G. S., Ormehurst, Clough Park Avenue, Grasscroft, near Oldham, Lancashire. Feb. 3, 1933, No. 3266. [Class 142 (iii).] Shuttle guards extending along the shuttle race are mechanically or automatically operated to occupy a guarding position when the loom is started and to take up a position when the loom is stopped, affording access to the shuttle race and boxes. The guard consists of a number of bars 10 connected by links 11 which can be folded to place the guard out of working position. When a handle 6 is pulled to start the loom an arm 17 on the shaft 7, by means of a cable 16, rotates a bell crank 13 and link 12 and drops the bars 10 in position to cover in the shuttle race.
Patent GB-489948-A (GB)
Title: Improvements in and relating to printing plates
IPC: B41N1/12
Filed: 1937-02-04
Abstract: A printing plate consists of a sheet of a thermoplastic cellulosic binding agent, e.g. celluloid or cellulose acetate, which is difficultly wetted by printing ink, and having in suspension therein a metal compound which is difficultly wetted by the binding agent and has the property of being wetted by and retaining printing ink. Suitable metal compounds are lead carbonate, iron oxide, calcium carbonate, calcium sulphate, manganese carbonate, zinc oxide and kaolin.  These may be used in amount of 30 to 60 per cent of the mixture.  In making the printing surface, the sheet is placed over the matrix and dampened on its upper surface.  A backing of celluloid, linoleum or cloth faced with rubber is then applied, and the whole is subjected to pressure.
Patent GB-354158-A (GB)
Title: Improvements in or relating to bearing-finding aerial arrangements
IPC: G01S1/02
Filed: 1931-02-03
Abstract: 354,158. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Feb. 3, 1931, No. 3502. Convention date, Feb. 8, 1930. Drawings to Specification. [Class 40 (v).] A pedal-released brake is provided for a manuallyrotatable loop aerial.
Patent GB-1130292-A (GB)
Title: Improvements in or relating to dial switch mechanisms
Inventor: WHALLEY DAVID HENRY
IPC: H04M1/34
Filed: 1965-01-27
Abstract: 1,130,292. Impulse transmitters. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 21 Jan., 1966 [27 Jan., 1965], No. 3505/65. Heading H4K. The mechanism of a dial switch is housed in a casing comprising two plastics mouldings, the lower one 10, as shown in Fig. 2, having a base and peripheral side walls on the top edge of which rests a second one 11 having corresponding walls, the two mouldings being held together by screws 60; and integrally moulded bearings for shafts and slots for the ends of contact springs being provided. The embodiment described and shown in Fig. 2 uses a dial mechanism, of a kind similar to that disclosed in 889,497, in which a plastics gear-wheel 24 for driving the governor has formed on its top surface a pattern of grooves in which a pincarrying impulse member 54, 57 rides. During the return motion of the dial the member moves from a circular inner groove 41 (Fig. 1, not shown) via one of a number of tangential grooves to an outer sinusoidal groove 41 where it opens and closes the impulsing springs 46, 43. The pattern of grooves differs from that disclosed in the above Specification in that a final portion of the outer groove traced by the pin-carrying member during the return motion is plane (not sinusoidal) and increases the lost motion period and also prevents an impulse being sent if the dial is wound up but released before the finger hole for digit 1 reaches the finger stop. Offnormal spring pairs 44, 47 and 45, 48 are operated by a stop 58 also carried on the surface of the gear-wheel. A driving spring 26 is housed within the gear-wheel which has a cover which connects with a boss 25 for carrying a fingerplate on posts 29, 30. The boss is formed from graphite impregnated metal and rotates in the integrally moulded bearing 13 and on a brass main spindle 22 fixedly held in a strut formed in the upper moulding. The bearings 3, 14, and 17, support a plastics shaft carrying a pinion 37 meshing with the gear-wheel 24 and carrying a worm-wheel 36, which is linked to the pinion 37 by a helical spring clutch, and which drives the governor 21. The governor is supported in plastics bearings, 18, (19), which are held in key-ways in the upper moulding 11. The contact springs are held at their ends in slots cut in the upper and lower edges of the walls of the upper moulding and have indents to match similar ones in the slots (Fig. 1). The impulsing member is attached to a resilient strip held in a key-way in the upper moulding wall. A screw 15 acts as a stop for the mechanism. A plastics cover 52 is provided.
Patent GB-158832-A (GB)
Title: Improvements in the cylinders of machines for stretching hides and skins
IPC: C14B1/42
Filed: 1921-01-29
Abstract: 158,832. Mercier, D., (Assignee of Giraud, L., and Petri, G.). Feb. 6, 1920, [Convention date]. Rotating - tool machines. - In a machine for stretching hides and skins by means of a rotary bladed cylinder 2, the blades 1 are formed with corrugated working edges and straight base portions 1<a> fitting into grooves formed in the cvlinder. The blades may be peripherally curved to open out and stretch the skins. The Specification as open to inspection under Sect. 91 (3) (a) comprises also modifications in which the corrugations instead of being rounded are formed with acute or obtuse angles on the front of the blade only or on both front and back of the blade. The corrugated blades on the drum may be staggered, and may be of different heights. The blades may also be sharpened. This subject-matter does not appear in the Specification as accepted.
Patent GB-347752-A (GB)
Title: Improvements relating to dynamo electric machines
IPC: H01R39/36
Filed: 1930-02-03
Abstract: 347,752. Dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and ORCHARD, H., 30, Claremont Road, Rugby. Feb. 3, 1930, No. 3619. [Class 35.] Brushes.-In a machine wherein a plurality of brushes are connected in parallel, any overload on one brush is distributed between the parallelconnected brushes before it is passed through the main pigtail, or equivalent thereof, by providing each brush with an additional connection attached at a point between the main pigtail and the working surface of the brush, these additional leads being connected together independently of the main brush connections. In the form shown, the brushes 2 have auxiliary pigtails 3 connected to a conductor 6 which is isolated from the main brush connections 7. Each brush has a recess 1, Fig. 1, at the bottom of which the auxiliary pigtail 3 is embedded, and this pigtail is insulated to avoid contact with the brush material at any point above its point of attachment thereto. The conductor 6 serves to distribute excess current from any one brush between the remaining brushes before it passes through a main pigtail 5.
Patent GB-848031-A (GB)
Title: Corner structure for containers
IPC: B65D6/36
Filed: 1958-02-04
Abstract: 848,031. Boxes. ZARGES, W. Feb. 4, 1958 [Feb. 21, 1957], No. 3641/58. Class 18. The container in Fig. 1 has a flanged member 2 secured to its rim and during the bending of the corners an outwardly directed corrugation 5 is formed in each corner in both the flange and the container, the corrugations being in the vicinity of the corners. only. As shown the 2 is L-shaped but in a modified construction the flange also has an upstanding external periphery. In Fig. 4 the container is constructed from two side sections 11 and two cornered end sections 1<SP>11</SP> each having a stiffening corrugation 6. During the bending of the corners the corners are formed with outwardly directed corrugations 9, 10, 11. The container may be of metal, fiber or plastic materials.
Patent GB-371502-A (GB)
Title: Improvements in diaphragms for galvanic cells
IPC: H01M50/429
Filed: 1931-02-05
Abstract: 371,502. Galvanic batteries. GJERULFF, J. P., 70, Jµgersborg Alle, Charlottenlund, near Copenhagen. Feb. 5, 1931, No. 3682. Convention date, Aug. 26, 1930. [Class 53.] A dry cell having electrolyte in the pores of the depolarizing block is provided with a diaphragm between the electrodes consisting of a sheet of colloid substance procurable in a manufactured state such as cellulose acetate, nitrate, or xanthogenate. The diaphragm may be wrapped round the inner electrode or it may be used as a lining for the outer one. It may also be used in combination with paper, textile material, &c.
Patent GB-524661-A (GB)
Title: Improvements in or relating to the electrolytic production of neutral hypochlorinated solutions
IPC: C25B1/26
Filed: 1939-02-03
Abstract: 524,661. Electrolytic production of hypochlorides. SALLES, P. M. R. Feb. 3, 1939. No. 3687. Convention date, Feb. 7, 1938. [Class 41] A solution of sodium chloride or a physiological liquor containing sodium and potassium chlorides is electrolized in a pressure-resistant hermetically sealed enclosure. After electrolysis the chlorine collected in the space above the electrolyte unites with any alkali to produce a neutral hypochlorinated solution, this being facilitated by slight stirring. Sufficient space is left to prevent excessive rise of pressure. The current may be cut off automatically after a predetermined rise of pressure or of temperature. Solutions which are iso-, hyper- or hypotonic to blood serum may be treated.
Patent GB-539153-A (GB)
Title: Improvements in staple removers
IPC: B25C11/02
Filed: 1940-02-28
Abstract: 539,153. Pliers. OBSTFELD, L., and OBSTFELD, A. Feb. 28, 1940, No. 3692. Convention date, March 17, 1939. [Class 61 (ii)] Staple removing pliers comprise a forked jaw 12 on one member 38 and a single jaw 14 on the other member 36 pivoted thereto at 40, the forked jaw 12 being pushed under the staple providing a support therefor-whilst the jaw 14 is adapted to engage the mid portion of the upper surface of the staple and bend it downwards thereby spreading the staple legs which are then withdrawn on continued movement of the pliers members as shown in Fig. 6. The jaws 12, 14 are secured to the jaw members by plate springs. In a modification shown in Fig. 14, there are two pairs of forked supports 96, 98 on the jaws 106, 100 and the staple bending member 134 is constituted by the front end of a bar 110 having a rear forked end 122 guided on the pivot 92 and actuated in the longitudinal direction by links 112, 114.
Patent GB-1364223-A (GB)
Title: Permanent magnet dynamoelectric machine
IPC: H02K23/04
Filed: 1973-01-25
Abstract: 1364223 Permanent magnet machines FORD MOTOR CO Ltd 25 Jan 1973 [4 Feb 1972] 3708/73 Heading H2A In an air blower/windscreen wiper motor, four radially polarized flat block ceramic stator field magnets 108, 110, 112, 114 are mounted in channels on the outside of a plastics housing body 16 in order that they will be well spaced from the armature 14, and hence subjected only to relatively small demagnetizing fields from the armature. The magnets are joined in pairs 108/110 and 112/114 by two U- shaped magnetic flux path bodies 116, 118 which are bolted at 130 to threaded fasteners 126 in housing slots 104. In the embodiment of Figs. 5, 6 (not shown), the magnets are encapsulated in the plastics material of the housing.
Patent GB-157046-A (GB)
Title: New explosives for use in war and in mining
IPC: C06B41/00
Filed: 1916-03-13
Abstract: 157,046. Gin, G. March 11, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Explosives.-Consists in mixing cyanamides or their derivatives rich in nitrogen with substances yielding oxygen, such as ammonum nitrate and perchlorate; paraffin may also be added. One example contains 10 per cent of dicyandiamide, 69 per cent of ammonium nitrate, 17 per cent of ammonium perchlorate, and 4 per cent of paraffin.
Patent GB-495359-A (GB)
Title: Improvements in change-speed gears
IPC: F16H63/30
Filed: 1938-02-07
Abstract: 495,359. Change speed gearing ; clutches. MAYBACH-MOTORENBAU GES. Feb. 7, 1938, No. 3828. Convention date, March 1, 1937. [Classes 80 (i) and 80 (ii)] The slipping out of engagement of a claw clutch member 8 or a slidable pinion 18 is prevented by forming the splines 9, 17 with one or more inclined surfaces. This is done by bevelling one or both sides for part or the whole, Fig. 2, of the length of a spline or by inclining the spline itself. The inclination of the surfaces is opposite to the direction of rotation when viewed from the driving side.
Patent GB-265991-A (GB)
Title: Improvements in carrying boxes for accumulators
IPC: H01M50/204
Filed: 1927-02-11
Abstract: 265,991. Pfalzgraf, C. Feb. 13, 1926, [Convention date]. Cases.-To protect an accumulator against vibration, the box in which it is contained. is provided with resilient buffers 3 on which the accumulator rests, and with wedges 4 having hook-shaped portions 8 which abut against the top of the accumulator as shown in Fig. 3. The wedges are accommodated in recesses in the walls of the box. If two or more accumulators are contained in the same box the buffers and wedges are provided with rihs which engage between the accumulators. The buffers and wedges may be made of rubber.
Patent GB-681734-A (GB)
Title: Improvements in permeability tuning devices
Inventor: COURT PATRICK RICHARD JAMES
IPC: H01F21/06
Filed: 1950-02-16
Abstract: 681,734. Radio tuning apparatus. PYE, Ltd. Feb. 7, 1951 [Feb. 16, 1950], No. 4020/50. Class 40 (v). [Also in Group XXXV] A tuning device in which a magnetic core 13 is movable in a former 6 carrying a coil 7, comprises a pair of spaced parallel arms 2 and 3, one having an aperture 4 and the other a slot 5 for holding the former, the edges of the slot depressing or cutting into the former to hold it firmly between the two arms. As shown, a number of formers and coils may be provided, and the magnetic cores 13 are fixed to a metal slider 10 which may be fixed in position by a screw having a knurled knob 19. The arms 2 and 3 form part of a channel member 1 and a panel plate of metal and insulating material 14a, 14b may be fixed to the channel member. Specification 666,900 is referred to, regarding the use of the device in a television receiver.