baber/WOPTO huggingface dataset:
Patent GB-210119-A (GB)
Title: Improvements in or relating to copying machines
IPC: B41L7/06
Filed: 1922-09-26
Abstract: 210,119. Gluckmann, H. Sept. 26, 1922. Guillotine type.-Copying machines are provided with a manually controlled member which is conveniently operable from the normal position of the operator each time the commencement, end, or other easily recognisable point of the document reaches an easily observable part of the machine, such as the copying rollers and which sets into operation a timing mechanism controlling the cutting- device, so that the cutting of copy sheets of various lengths may easily be performed. The documents may be fed into the machine by means operated by the manually controlled member. The pusher p carries a stop g normally checking a pawl e connected to a rotary cam d, the pawl e being adapted, when released from the stop g, to couple the rotary cam d with the continuously rotating gear wheel f behind it. A rod c actuated by the cam d operates the device b which causes the documents to be fed over the copying roller a. The cutter h is driven by a crank i normally checked by a pawl e but adapted to be coupled to the continuously rotating gear wheel f<1> behind it when the pawl e' is released from the stop g<1> carried by a lever o<1> actuated by a projection q on a cam k rotating with the cam d. The pusher p is depressed at the time the end of the document is passing over the copying roller a, whereby the cams d, k are freed for one rotation. The parts c, b are released at once, thus effecting the feeding in of the next document, and at the end of the rotation of the cam k the projection q releases the stop g<1> and allows the cutter h to be actuated. The time of rotation of the cam k corresponds with the length of travel between the copying roller a and the cutters. The manually controlled member may be applied to a copying machine wherein the copying web is normally severed automatically by cutters actuated by mechanism which may be set according to the particular length of a batch of documents being copied, the automatic cutting- mechanism being thrown out at any time a document of unusual length has to be copied and the hand control employed instead. Such an arrangement, as shown in Fig. 2, comprises the rotary cam d, cutter actuating crank i, pawls e, e<1> and stops g, g', as formerly, these stops being normally actuated automatically by means of levers o, o<1> engaged by cams m - - m<3> on the driving wheel k. One, two or four of the cams m - - m<3> are adjustable on the wheel k into or out of operative position by means of a handle l carrying two pins s' connected to a disc t provided with cam slots u engaging pins v on the cams m - - m<3>. For hand control of the cutting, all the cams m - - m<3> are set out of action and the pusher p when depressed acts through a bellcrank p' to detach one of a number of round bodies q, q<1>, &c. out of a magazine s into a channel in the wheel k the detached roll q being carried round once with the wheel k and actuating the levers o, o<1>.
Patent GB-1206750-A (GB)
Title: Self steering roller assembly for tracking a web of material
IPC: G03G15/00
Filed: 1969-05-21
Abstract: 1,206,750. Guiding webs. XEROX CORP. 21 May, 1969 [29 May, 1968], No. 26018/69. Heading B8R. [Also in Divisions F2 and G2] A tracking roller 110 for a xerographic belt 1 is mounted'by spherical bearings 105 on mutually inclined stub shafts 103, 104 to permit angular adjustment of the roller axis without distortion of the roller. The roller shell 110 is engaged by end plates 111, 112 and carries a resilient sleeve 115 supporting the belt 1 whose edges engage metallic flange rings 123, between which and the end plates are resilient cushioning rings 122. In operation if the belt deviates laterally and rides over either of the flange rings 123 controlled corrective angular adjustment of the roller axis is effected by spring-loaded bellcranks 102 carrying the stub-shafts 103, 104.
Patent GB-407960-A (GB)
Title: Improvements in the steering of track laying vehicles
IPC: A01B69/00
Filed: 1932-09-20
Abstract: 407,960. Steering endless - track vehicles. HILL, W. L., 43, Preston Road, Wembley Park, Middlesex. Sept. 20, 1932, No. 26172. [Class 79 (ii).] In an endless-track vehicle a positively-driving changespeed gear, whereby the speed of one track may be altered by a small percentage such as 5 per cent, is combined with a clutch whereby the drive to that track may be interrupted without interruption of the drive to the other track. Thus the vehicle may be given either a slight steering movement or a much greater one at will. In the construction shown, the engine shaft 10 drives a transverse shaft 13 from which the track-driving wheels 15, 19 are driven through two twospeed gears 23, 30. The difference in ratio between the gear trains 23, 29 and 24, 28 is about 5 per cent. The gears are controlled by sliding clutches 27 operated by a hand lever 32 acting on rollers 34 carried by sliding racks 35, 36 which gear with pinions 42 having crank pins 43 operating the gear clutches through bell-crank levers 45. Normally the clutches are kept in the straight-driving position by springs 52 which move the racks to the position shown at the right of Fig. 1. To steer the vehicle to the left (say), the hand lever is moved from the central position 46 to the position shown, in which the left-hand clutch 27 is moved to bring the slow gear train 24, 28 into operation. If a sharp turn is required, the lever 32 is moved to position 47 and the clutch 27 is moved to the position shown in Fig. 2, in which the track driving wheel 15 is disconnected from the shaft 13. This extended movement of the rack 35 also applies a brake 51 by means of a slot 48, pin 49 and lever 50 so as to hold the disconnected track stationary. Reference has been directed by the Comptroller to Specifications 111,438, 126,208, and 159,495, [all in Class 79 (ii)].
Patent GB-833971-A (GB)
Title: Improvements in silicon carbide semiconductor devices and method of preparation thereof
IPC: H01L21/04
Filed: 1958-08-15
Abstract: 833,971. Silicon carbide semi-conductor devices. GENERAL ELECTRIC CO. Aug. 15, 1958 [Aug. 16, 1957], No. 26285/58. Class 37. Ohmic and rectifying contacts may be made to silicon carbide bodies by placing an alloy of silicon and an activator material in contact with a surface of a monocrystalline wafer of silicon carbide and heating to a temperature below the melting-point of silicon carbide but sufficiently high to cause the alloy to melt and dissolve part of the crystal wafer and then allowing the wafer to cool and recrystallize containing trace concentrations of activator material. N or P type silicon carbide due to presence of nitrogen or boron may be used and arsenic, antimony, phosphorus, boron, aluminium, gallium, and indium are all suitable activators. A silicon carbide crystal is etched in CP4 etch to remove surface impurities and is then placed horizontally in a reaction chamber, a small quantity of silicon activator alloy is then placed on the crystal, the chamber is flushed with an inert gas at about 1 atmosphere pressure and then heated to a temperature between 1550 and 2200 C., depending on the activator. After a short time the device is allowed to cool and the desired contact is made. Nickel or tungsten wire may be fused to the silicon alloy either during or after the above treatment. For diode devices one electrode may be tungsten or molybdenum or an alloy of the two fused directly to silicon carbide crystaL Fig. 2 shows a transistor device wherein silicon aluminium globules 4<SP>1</SP> and 4" and a silicon phosphorus globule 9 have been fused to N-type silicon carbide by the method described. Alternatively a transistor device may be made by forming a P-type re-crystallized region on an N-type silicon carbide crystal by making a connection as above and then etching away the remaining silicon activator alloy and then making one ohmic and one rectifying contact to the recrystallized P region and one ohmic contact to the N region of the crystal slice all by the method described above.
Patent GB-1277634-A (GB)
Title: Herbicide composition and process
IPC: C07C323/25
Filed: 1969-05-22
Abstract: 1277634 Herbicides containing alkylamino thioethers SCM CORP 22 May 1969 [27 June 1968] 26312/69 Heading ASE Herbicidal compositions comprise a #-(dilower alkylamino) lower alkylene thio ether of formula: AlK-S-R-NR'R" (wherein AlK is a C 4-16  saturated branched chain alkyl group, R is C 2-4  alkylene, R' and R" are each C 1-4  alkyl) and/or stable salts thereof together with a carrier. Specified compounds (17 in all) include #-diethylamino ethyl 3, 7-dimethyloctyl thioether, #-diethylaminoethyl 4, 6, 8-trimethylnonyl thioether and #-diethylamino n-octyl thioether, which together with their HCI salts are shown to exhibit selective pre-emergent and/or post-emergent herbicidal activity, permitting the growth of crops e.g. cotton, corn, soybeans, wheat and oats, while destroying or inhibiting the growth of weeds such as mustard, yellow foxtail, barn grass, rye grass, pig weed and buck wheat. Specified carriers include liquid hydrocarbons, terpene and other alcohols, glycols, finely divided inorganic and organic solids, and the active compounds are applied in amounts up to 10 lbs/acre.
Patent GB-171556-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L1/26
Filed: 1920-09-14
Abstract: 171,556. Thomas, H. H. M. Sept. 14, 1920. Thin-plate springs.-In an internal-combustion engine having two inlet and two exhaust valves 2, 3 in the cylinder head, the four valves are held to their seats by a single laminar spring 4, mounted centrally and having an arm extending to each valve. The valves may be at points on the circumference of a circle, two like valves being adjacent. As shown, the spring is mounted on a spring washer 7 on a central abutment 5, but the spring washer may be replaced by a spherical or other abutment. Owing to the overlap of the timing of the exhaust and inlet valves. the spring 4 rolls on the central abutment and the effective length of the spring arms, and consequently their natural period of vibration, varies during the engine cycle, so as not to interfere with the valve motion. The spring may be formed of a single leaf, or it may be built up of several leaves.
Patent GB-1275271-A (GB)
Title: Flash welding apparatus
IPC: B23K11/04
Filed: 1969-05-23
Abstract: 1275271 Fluid-pressure servomotor systems TAYLOR-WINFIELD CORP 23 May 1969 [29 May 1968] 26328/69 Heading G3P [Also in Division H2] Movement of the platen 40 of a flash-bulb welding apparatus is effected by means of a fluidpressure operated device 17, 18 controlled by an electromagnetically operated fluid-pressure servomotor SG which is itself controlled by certain operational characteristics of the welding apparatus. The servomotor SG comprises a conduit 2 through which oil is fed to a jet nozzle 3 which directs the oil on to a receiver plate 4 having two holes associated with passages leading to opposite ends of a spool 7. When current is applied to the winding of a torque motor 9, the nozzle 3 and an arm 9A pivots so that more oil is fed to one end of the spool 7 than to the other causing the spool to move and hence the piston 17 in the cylinder 18. Movement of the spool also compresses a feedback spring 8, which spring then re-establishes a force balance to re-centre the nozzle 3 with the receiver plate 4 but with a new position of the spool 7 proportional to the current in the winding of the torque motor 9.
Patent GB-482439-A (GB)
Title: Improvements in or relating to machines for setting eyelets or like barrelled fastening or reinforcing articles
IPC: A43D100/02
Filed: 1936-09-29
Abstract: 482,439. Setting .eyelets &c. BRITISH UNITED SHOE MACHINERY CO., Ltd., WOODCOCK, R. B., and BARKER; W. A. Sept. 29, 1936, No. 26345. [Class 43] In a machine for setting eyelets &c. of the kind described in Specifications 720/07, 720A/07, and 720B/07, [all in Class 43], having an upper setting die 15 carried by a bar 14 which is actuated by a cam (not shown) on the driving shaft 12 of the machine and a lower setting die 66 or 70 which is actuated by a cam 30 on the shaft 12 through a lever 52, rock-shaft 50 and levers &c. 46, 42, 38, 36, 34, the cam 30 is adapted to be locked to the shaft 12 in one of two positions so that the time of operation of the lower die may be adjusted to enable the machine to perform either ordinary eyeleting or " blind " or " invisible " eyeleting. Preferably, the cam is secured to a hand-wheel disc 60 fixed on the shaft 12 by two bolts 56 which project through one of two pairs of holes 62 in the disc and engage threaded holes 58 in the cam, one pair of holes 62 being disposed at an angle of about 43‹ to the other pair so that when the bolts are transferred from one pair of said holes to the other the angular position of the cam on the shaft, and consequently the time of actuation of the lower die, is correspondingly altered. Fig. 5 shows the dies 15, 66 for ordinary eyeleting, a punch 64 carried by a lever 16 being provided for punching the work and feeding it thereto. When the machine is used for " blind " or " invisible " eyeleting, the lower die 66 is replaced by a combined punch and die 70, Fig. 3, of the kind described in Specification 17087/14, [Class 43], the punch 64 by a punch block 76 mounted on a pricking feed point 78, and the work-supporting anvil 80, used in ordinary eyeleting, by a work support 82 having a groove 83 along which the feed point 78 moves after having penetrated the work.
Patent GB-732075-A (GB)
Title: Improvements in and relating to electrical induction relays
Inventor: PADDISON ERIC
IPC: H01H53/10
Filed: 1952-10-21
Abstract: 732,075. Induction relays; protective cut-out systems. ENGLISH ELECTRIC CO., Ltd. Oct. 20, 1953 [Oct. 21, 1952], No. 26371/52. Class 38 (5). A relay intended for the protection of an alternator 9 and having windings energized from similar current transformers 10, 11 arranged on the neutral and line sides of the alternator so that the relay operates in response to a given difference, ID, between the currents IN, IL, comprises a four-pole stator 1 with a core 2 on the axis of which an aluminium cylinder 16 may rotate against the action of a spring 18 to move contact 21 to complete a tripping circuit 22. The stator 1 is energized by six coils 3 ... 8 each coil having a pair of windings a, b, the windings a passing a current KID and windings b a current KIN or KIL, K being a proportionality factor. The ratio of the number of turns on windings b to the number on windings a is equal to k and in a particular example has the value 0.02 and the Specification proves that the relay will then operate when the out-of-balance current ID is about 2 per cent of the current flowing through the alternator. The windings a, b of coils 5, 6 which energize one pair of the magnet poles are connected to produce fluxes in the same direction whereas the windings a, b of coils 3, 4, 7, 8 which energize the other pair of magnet poles are connected to produce mutually opposed fluxes ; alternatively, additive fluxes may be produced on the coils 3, 4, 7, 8 and opposed fluxes in the coils 5, 6. The drawings show the condition when IN is greater than IL. To prevent undesired relay operation for high values of current through the alternator 9 due to slight differences between the transformers 10, 11, the relay is desensitized by a shunt circuit comprising a saturable choke 14, the choke normally passing a small current, but becoming saturated at high values of KID and by-passing an increasing proportion of the current, the magnitude of this current being limited by a resistance 13. The coils 5, 6 may also comprise windings c connected in an independent circuit with a condenser 15 to produce a phase-shift of the flux. In a modification all the b windings are connected to carry the current KIN or KIL.
Patent GB-518850-A (GB)
Title: Method of and means for giving indication on board a vehicle moving along a guiding path representing navigational data and utilising a single radio transmitter
IPC: G01S1/02
Filed: 1938-09-09
Abstract: 518,850. Wireless signalling systems. STANDARD TELEPHONES & CABLES, Ltd. Sept. 9, 1938, No. 26384. Convention date, Oct. 6, 1937. [Class 40 (v)] A navigator is given the distance from his destination by the varying percentage modulation of the signals he picks up from a beacon transmitter. The transmitter consists of an energized dipole associated with a second dipole which is keyed at audible frequency so that it acts alternately as a reflector and a director. The resultant field is indicated in Fig. 3. A navigator along the line OD receives signals which alternate in strength between OC and OD, i.e., the percentage modulation varies from a maximum along the direction OA to a minimum along the direction OB. The signals are fed to the receiver shown in Fig. 4, the current through the coil L1 being half the sum, and that through the coil L2 half the difference of the pick-up signals OC, OD. The coils supply a quotient type of indicator, and give a direct reading of the distance AN, Fig. 6, separating an aeroplane N from its landing point A opposite the " distance " beacon O. The line XY is a radio guideway transmitted from a beacon P1.
Patent GB-378241-A (GB)
Title: Improvements in or relating to latch mechanisms
IPC: E05C1/16
Filed: 1931-09-22
Abstract: 378,241. Sliding latches. McKINNEY MANUFACTURING CO., Liverpool Street, Pittsburg, U.S.A.-(Assignees of McKinney, J. P. ; of McKinney Manufacturing Co., Liverpool Street, Pittsburg, U.S.A.) Sept. 22, 1931, No. 26504. Convention date, Oct. 13, 1930. [Class 44.] A spring-pressed latch bolt 17 slides within a spring-pressed retractor 21 and is guided by a pin 10 screwed to the casing. The retractor spring 22 is heavier than, and concentric with, the bolt spring 19. The retractor is dead-locked by a device described in Specification 362,141. The invention is illustrated with a lock of the type described in Specification 302,524, [Class 44, Fastenings, Lock &c.], and 359,194.
Patent GB-1268138-A (GB)
Title: A process for the production of solvent-containing adhesives
Inventor: BOCK EUGEN
IPC: C08G18/66
Filed: 1970-06-02
Abstract: 1,268,138. Laminates. FARBENFABRIKEN BAYER A.G. 2 June, 1970 [14 June, 1969], No. 26516/70. Heading B5N. [Also in Division C3] Materials such as paper, cardboard, wood, rubber, metal and synthetic resins can be bonded with a solvent-containing adhesive comprising a hydroxyl-containing polyurethane having a M.W. greater than 50,000 and being prepared from a diisocyanate, a polyester of M.W. more than 2000 and being prepared (a) from an alkane dicarboxylic acid containing at least 6 carbon atoms and an alkane diol containing at least 4 carbon atoms or (b) by polycondensation of a hydroxy alkane monocarboxylic acid containing at least 5 carbon atoms or by polymerization of its lactone and as a chain lengthening agent an alkane diol containing at least 4 carbon atoms in a finite amount up to 0.7 mol. per mol. of the polyester (see Division C3). In specific examples, strips of an acrylonitrile butadiene rubber are adhered to one another as are strips of plasticized polyvinyl chloride using various hydroxyl-containing polyurethanes dissolved in a solvent.
Patent GB-767805-A (GB)
Title: Improvements in swash-plate pumps and motors
IPC: F01B3/00
Filed: 1953-07-09
Abstract: 767,805. Revolving-cylinder pumps. VICKERS, Inc. July 9, 1953 [July 10, 1952], No. 26519/55. Divided out of 767,804. Drawings to Specification. Class 102(1). [Also in Group XXIX] The subject-matter of this Specification is identical with that described in Specification 767,804 but the claims differ. Specification 645,420 and U.S.A. Specification 2,313,407 also are referred to.
Patent GB-272376-A (GB)
Title: Improvements in or relating to the production of concentrated preparations of vitamine c
IPC: A61K31/375
Filed: 1926-10-25
Abstract: 272,376. Agopian, L. A. Oct. 25, 1926. Vitamins.-To obtain concentrated forms of vitamin C, vegetable juice, after initial treatment with metal salts such as acetate of lead and copper, as described in Specification 168,903, is given a further treatment, as follows : The filtrate is neutralized with soda until it turns red with cresol red. The precipitate which is formed contains lead and glucosides &c. associated with the vitamin, and by the use of 5 per cent acetic acid the vitamin with a little impurity is brought into solution. Repetition of the treatment with soda and with acetic acid serves to effect further purification and then after elimination of any lead by sulphuretted hydrogen the filtrate is concentrated in vacuo, mixed with milk of lime and ethyl alcohol to remove organic acids &c., and the final filtrate is concentrated to dryness in vacuo. The powder can be dissolved in glycerine and put into capsules. Purer preparations of the vitamin mav be obtained by subjecting the powder to repeated extractions with absolute ethyl alcohol and then to filtrations after admixture with water.
Patent GB-500749-A (GB)
Title: Improvements in and relating to machines for making envelopes, flat bags and the like
IPC: B31B19/00
Filed: 1937-10-01
Abstract: 500,749. Marking envelopes and bags. GODER, M. Oct. 1, 1937, No. 26658. [Class 94 (ii)] Envelope or bag blanks in a stack 1 are withdrawn from the bottom thereof by rollers 2, 3, the roller 2 being a suction roller, a side flap b of each blank being folded over in the act of withdrawing and inserted in the fold of the previously extracted and folded blank, Fig. 2. The stepped layer of blanks, guided at 7, is fed by a belt 10 and rollers 11, 12 to rapidly moving rollers 13, 14 which separate them, feeding them to adjustable stops 17 on a roller 15 carrying also a folding knife 18, which, in co-operation with a clamp 19 on roller 16, folds over the flaps a. Rollers 22, 23, at a lower level, now feed the folded blanks to rollers 24, 25 which crease them at e, and gum is applied to the bottom and closing flaps c, d by rollers 28, 29. These flaps are folded over by known means, but the flap d is not folded right down. The folded blanks are now fed by rollers 30, 31 to a suction roller 32 which positions them between prongs 35 and a drying chain 36. A belt 42 then feeds the envelopes to guides 47 and a slowmoving belt 48 where they are stacked.
Patent GB-1283197-A (GB)
Title: Improvements in or relating to self-aligning or self-seating devices applicable, for example, to fluid-flow control valves
Inventor: COOKE JOHN
IPC: F16K11/074
Filed: 1969-05-27
Abstract: 1283197 Valves GULLICK DOBSON Ltd 14 May 1970 [27 May 1969] 26730/69 Heading F2V In a rotary distributor valve having an inlet port 20 and a plurality of circumferentially spaced outlet ports 11, communication between the inlet and a selected one of the outlets is effected by rotating handle 19 such that it opens a valve 21, whereas altering the selected outlet is effected by rotating the handle about an axis transverse to the first axis of rotation. Sealing of the stator 10 with respect to the rotor, which rotor carries valve 21, is effected by means of a barrel-shaped seal 12 which by virtue of its configuration ensures proper contact along the face of the stator, the seal being loaded against such face by a spring 22. In a modification (Fig. 3, not shown) the recess in the rotor which accommodates the seal is formed to diverge at both ends whilst the seal is of cylindrical form. In both embodiments, enhanced sealing is achieved by the inclusion of a seal 18 in either the seal member 12, Fig. 1, or in the rotor recess, Fig. 3.