baber/WOPTO huggingface dataset:
Patent GB-388695-A (GB)
Title: Improvements in or relating to the mounting of electric lights on sewing machines
IPC: D05B79/00
Filed: 1932-10-03
Abstract: 388,695. Sewing-machines. JONES' SEWING MACHINE CO., Ltd. and HALL, J., Guide Bridge, near Manchester. Oct. 3, 1932, No. 27377. [Class 112.] The electric driving motor 4 of a sewing- machine 1 supports an electric light 15 in a bracket 8 which is secured to the end cap 5 of the motor by nuts and bolts, or the like. The motor cable 19 and the light flex 18 are gripped by a clip 16 which is affixed by screws to the bracket 8. A shoulder 12, of the light holder, is drawn against the bracket 8 by a clamping nut 13. A bracket 2 supports the motor in an adjustable manner.
Patent GB-192681-A (GB)
Title: An improved method for the manufacture of screw taps or similar screw cutting tools
IPC: B23P15/48
Filed: 1922-10-10
Abstract: 192,681. Soc. Industrielle de Delle. Feb. 4, 1922, [Convention date]. Taps; milling-cutters.-A tap has the leading end tapered and provided with a complete series of shallow cutting edges 2, Fig. 1, followed by a parallel roughing portion with alternate cutting edges removed, and a finishing portion 4 having complete threads. In the production of the central part of the tap and of other mutilated thread taps a milling-cutter is employed of the section shown in Fig. 4, the width of the flat 13 being equal to the pitch of the tap to be made. The cutter is fed axially of the tap in a direction opposite to that corresponding to the hand of the thread so as to cut away half the original thread. A groove 14<1> - - 14<4> is thus cut on the tap. In the case of a three fluted tap the pitch of the groove is equal to twice the pitch of the original thread. Longitudinal cuts 5<1>, 5<2>, 5<3> to form the flutes complete the tap.
Patent GB-603361-A (GB)
Title: Improvements in and relating to ball mills
IPC: B02C17/02
Filed: 1945-10-18
Abstract: 603,361. Ball mills. BRITISH REMA MANUFACTURING CO., Ltd., and DAVIS, J. Oct. 18, 1945, No. 27410. [Class 59] A ball mill having grinding plates 5 surrounded by coarse and fine screening-panels 6, 7 is enclosed in a casing 1 having, at the top, an air or gas inlet 12 and, at the bottom, an outlet 14 for the air or gas and entrained particles, the air flow being diametrically through the mill. The air flow is effected by a fan 13 which discharges into the inlet 12 and sucks from the outlet 14 through a Cyclone or other separator 16 and conduit 17. Excess of air may be discharged to atmosphere through a conduit 19 controlled by a valve 20. In a modification. the fan 13 discharges directly to atmosphere, air being sucked through the inlet 12 and the mill by the fan suction connected tb the mill at 14. In a further modification, the fan discharge is connected to a pipe 22, the rush of air past the outlet 14 aspirating air through the inlet 12. The branch 23 is controlled by a valve and is open to atmosphere. Filters may be provided in the conduits where necessary to remove very fine particles from the air or gas stream. Hot drying-air or gas at atmospheric temperature may be admitted through a butterfly valve 25.
Patent GB-1078505-A (GB)
Title: Improvements in or relating to mechanical saws
IPC: B23Q15/12
Filed: 1965-06-29
Abstract: 1,078,505. Grinding. F. C. LEONARD. June 20, 1966 [June 29, 1965], No. 27471/65. Heading B3D. [Also in Division B5] A mechanical saw, which may have a toothed or abrasive blade, comprises means for continuously determining the length of that portion or portions of the cutting edge of the blade which is in contact with a workpiece at any instant during a cutting operation and means responsive to the determining means for varying the loading applied to the saw blade such that the load is at all times proportional to the contact length. The determining means may comprise a pipe 10 having a slot or number of jets directed towards a copy 11 of the cross-section of the workpiece to be cut, the pipe, at one end, being connected to an inlet pipe 12 and restriction 13, and, at the other end, to an outlet pipe 14 which includes a restriction 15 and is connected to a cylinder-and-piston device 16, 17 adapted to apply a loading to the blade of the machine, the pipe moving over the copy in correspondence with the movement of the blade through the workpiece. The copy may be of metal or wood or be formed from an assembly of small rods mounted in an open-ended box, the assembly being pressed against the end of the workpieoe to displace the rods engaged by the workpiece and thus form a replica of the workpiece. In another embodiment which does not use a copy of the workpiece, a twin blade assembly is used to cut the workpiece, the blades being spaced apart by a small distance and sealed by a packing piece at their back edges and ends to form a manifold. Air or liquid, such as coolant, is supplied to the assembly which is also connected to the loadapplying device of the machine. As the blade moves in contact with the work, the latter acts on the space between the blades to vary the flow of fluid therethrough and consequently the pressure of fluid supplied to the loadapplying device.
Patent GB-438991-A (GB)
Title: Improvements in or relating to means for reducing the resistance to motion of material bodies
IPC: B62D35/00
Filed: 1934-09-25
Abstract: 438,991. Windscreens for vehicles and aircraft. HUET, A., 27, Rue de Longchamp, Paris. Sept. 25, 1934, No. 27516. Convention date, Dec. 19, 1933. [Class 103 (ii)] [See also Group XXXIII] Resistance to motion of a material body through a fluid is reduced by deflecting the fluid meeting the body and sustaining it by a fluid stream which meets the deflected fluid at an acute angle, to create a mass of fluid moving with the body. In one form the fluid is deflected and sustained by a deflector b, d, Fig. 2. The portion d may be omitted and the deflector may be placed at any part of a vehicle. The air-stream G sustains the mass of fluid. Deflections having the crosssections shown in Figs. 5, 6, 7 and 8, may be mounted, e.g. in front of a locomotive.
Patent GB-735067-A (GB)
Title: New or improved light metal cylinder, for air cooled internal combustion engines, having a grey cast iron liner pressed therein
IPC: F02F1/08
Filed: 1952-11-03
Abstract: 735,067. Cylinders. KREIDLER, A. Nov. 3, 1952 [Dec. 3, 1951]. No. 27575/52. Class 7(2). In a two-stroke air-cooled engine, the initial dimensional overlap of a grey cast-iron liner 3 and a light metal cylinder 1, prior to pressfitting the liner into the cylinder, varies axially of the cylinder and is greater in the region of exhaust ports 8 than in the region of inlet ports 7. The overlap is indicated in exaggerated form by the spacing of the chain-dotted lines from the cylinder bore and may decrease axially downwards of the cylinder at a uniform or a smoothly or irregularly varying rate and may change abruptly in amount at a given point or points.
Patent GB-846881-A (GB)
Title: Improvements in or relating to engine starter drives
IPC: F16D41/20
Filed: 1957-09-02
Abstract: 846,881. Engine starter drives. LEECENEVILLE CO. Sept. 2, 1957 [Nov. 5, 1956], No. 27607/57. Class 7(5). A starter drive of the kind having a rotatable and axially shiftable pinion 16 for releasable driving engagement with a ring gear 12 or the like comprises a rotatable drive shaft, sleeve means 32 having splined connection with the shaft, the sleeve means being rotatable with the shaft and axially shiftable therealong for moving the pinion into engagement with the gear, shifter means 39 effective on the sleeve means for causing the axial shifting of the sleeve means and pinion, a pair of substantially axially aligned clutch hubs 53, 54 carried by the sleeve means and pinion and a helical clutch spring 55 disposed substantially coaxially of the shaft and in spanning relation to the adjacent ends of the hubs the spring being self-tightening against the hubs for establishing an automatically releasable torque transmitting connection therebetween. If the teeth of the pinion 16 abut against the teeth of the ring gear 12 a helical spline connection including the spline elements 35 will cause rotation of the pinion 16 during continued movement of the shift sleeve 32 towards the right. The electric motor by which the starter is powered is energized substantially upon full engagement of the pinion 16 with the ring gear 12. The clutch spring is connected with the hubs solely by frictional engagement therewith.
Patent GB-1176989-A (GB)
Title: Dolls
IPC: A63H3/48
Filed: 1967-06-15
Abstract: 1,176,989. Dolls. PERFEKTA ENTERPRISES Ltd. 12 July, 1967 [15 June, 1967], No. 27627/67. Heading A6S. [Also in Division G5] Dolls having a head part 1, upper body part 4, and lower body part 7 have at least two of the parts connected by a rod 9 which is retained in position by a spring 13, said rod passing through coincident openings such that the parts are relatively movable, the parts having arcuate parts corresponding to the surface of the adjacent part. In a preferred form, Fig. 2, the head, upper body part and lower body part are connected by the same rod; in another embodiment (not shown) only the upper and lower body parts are connected. The parts may be made from a hard plastic and have arms and legs formed from a resilient material such as rubber.
Patent GB-288595-A (GB)
Title: Improvements in or relating to refrigerators
IPC: F25D19/02
Filed: 1927-10-18
Abstract: 288,595. Delco-Light Co., (Assignees of Hull. H. B.). April 13. 1927, [Convention date]. Drawings to Specification. Motors, mounting and suspending.-An electricmotor and refrigerating compressor, together with a condenser coil cooled by air circulated by a fan on the motor shaft, are mounted on a platform suspended from a bed frame by springs, in the manner described in Specification 288,596.
Patent GB-564473-A (GB)
Title: Improvements in or relating to the manufacture of chlorbutadiene
IPC: C07C17/25
Filed: 1939-10-12
Abstract: 2-Chlorobutadiene-1 : 3 is made by heating vapours of 2 : 2 : 3-trichlorobutane (Specification 535,586) to 400-600 DEG  C., preferably to temperatures between 470 DEG  and 520 DEG  C.  The reaction is effected in the absence of catalysts or acid acceptors, in a reaction space which is unpacked or packed with inert material, e.g. pieces of glass.  An example is given.
Patent GB-867649-A (GB)
Title: Photographic wide angle objective
IPC: G02B13/04
Filed: 1957-09-03
Abstract: 867,649. Photographic objectives. VOIGTLANDER A. G. Sept. 3, 1957 [Sept. 12, 1956], No. 27788/57. Class 97(1) A photographic objective of back focal length between 0,85 and 1.25 times the equivalent focal length f comprises a negative meniscus front component I separated by a distance a, less than 0À75f from a collective system II. This system II is of the developed triplet type and consists of positive lenses L 1 , and L 3 , a negative lens L 4  and a positive doublet Ls, L 6 , and the numerical sum of the refractive powers of the surfaces R 6  and R 7  of the lenses L 3  and L 4  lies between 0.25 and 0 ' 75 times the refractive power of the complete objective. Preferably, the difference between the refractive powers of the surfaces R 6  and R 7  lies'between 0.5 and 1 ' 5 times the total refractive power, and the ratio of the numerical value of the sum of these refractive powers to the sum of the refractive powers of surfaces R 3  and R 4  is between 0.25 and 1.25. Also, ratio (A) of the difference between the refractive powers of the surfaces R 1  and R 2  of lens L 1 , to the sum of these powers may have a value which, when divided by the length a, of the air space, lies between 4 and 9 times the total power of the objective. The quotient of ratio (A) for lens L 2  and the same ratio for lens L 3  should preferably be such that, when divided by the quotient of ratio (A) for lens L 3  and the same ratio for lens L 4 , it lies between 1 and 3. The thickness of lens L 3  may be between 0.1 and 0À25f. Optical data are given for these examples.
Patent GB-503782-A (GB)
Title: Improvements in or relating to self feeding water boilers
IPC: A47J31/54
Filed: 1937-10-13
Abstract: 503,782. Heating water; partitions in water-space. JACKSON BOILERS, Ltd., and MUSTILL, C. W. Oct. 13, 1937, No. 27797. [Class 64 (i)] In a water heater of the type in which the draw-off tap 14 is connected to an expansion box 13 into which boiling water is carried by steam from an annular boiling space 10 formed between an inner casing 2 and a sleeve 9 in a water jacket 4 fed with water from a float valve chamber 5, gas rising from a burner 7 passing up through the inner casing, which has cross tubes or fins 8 to increase the heating surface, an annular sleeve 12 closing the top of the annular bolting space 10 directs boiling water through an orifice 11 into the expansion box 13, which is above the water level, so that it is drained through the orifice when ebullition ceases. The expansion box is formed integral with or removable from the boiling sleeve and has a weir 15 for overflow of hot water or escape of steam. The inner casing has watercontaining baffles 8 and is joined to the outer casing 1 by a readily separable joint 3.
Patent GB-1031269-A (GB)
Title: Homopolymers of n-vinylacetamides
IPC: C08F126/02
Filed: 1964-07-07
Abstract: A homopolymer of an N-hydrocarbon substituted N-vinyl acetamide, having a minimum molecular weight of 5000, in which the hydrocarbon substituent is an aliphatic hydrocarbon radical having at least 2 carbon atoms or an aromatic hydrocarbon radical, is produced by polymerization in the presence of a non-oxidizing free radical initiator at a temperature of about 10 DEG  to 100 DEG  C. Polymerization may be carried out in an organic solvent or a buffered aqueous medium.
Patent GB-1078449-A (GB)
Title: Nitrated amino-bromo-ethylbenzenes
Inventor: PROFFT ELMAR
Filed: 1966-06-22
Abstract: The invention comprises the nitration product of 2- - acetamino - 5 - bromo - ethylbenzene which has a melting point of 208-209 DEG  C. and the free amino compound corresponding thereto which has a melting point of 120 DEG  C.  The nitro compounds may be made by introducing 2-acetamino -5-bromo-ethylbenzene into fuming nitric acid at a temperature of about 0 DEG  C. in such a manner that, at the end of the reaction, a temperature of about 20-30 DEG  C. is reached, whereupon, if desired, the nitrated acetamino compound obtained is converted into the corresponding amino compound by boiling under reflux with hydrochloric acid.
Patent GB-645498-A (GB)
Title: Interlocked generator circuits
IPC: H03B19/10
Filed: 1947-10-20
Abstract: 645,498. Transformers. BALDWIN CO. Oct. 20, 1947, No. 28044. Convention date, Dec. 6, 1946. [Class 38 (ii)] [Also in Groups XXXVIII and XL (c)] A number of transformers in the note generator of an electronic organ (see Group XL (c)) have a common laminated core structure the limbs 77-80 of which are dimensioned to produce a desired amount of coupling between the winding of adjacent transformers. Specifications 527,080 and 539,752, [both in Group XXXVIII], are referred to.
Patent GB-135199-A (GB)
Title: Improvements in and relating to expansion drills for boring earth and other material
IPC: E21B10/32
Filed: 1919-11-12
Abstract: 135,199. Stickney, C. L. Nov. 12, 1918, [Convention date]. Bore-hole apparatus.-An expanding drill for chambering bore-holes comprises a mandrel 1 bifurcated to form jaws 2, the recess between the jaws having inclined walls 4 meeting in curved parts to form a stop 6; the cutters 8 are pivotally mounted on a pin 20 which is slidably arranged in slots 7 so that on striking the bottom of the bore-hole, the cutters move upward relatively to the mandrel and their upper ends move along the inclined walls 4 to expand the drill. On lifting the mandrel, the weight of the cutters automatically effects their retraction. The upper parts of the cutters abut when the drill is expanded and the lower parts are out away and tapered laterally to permit overlapping when the cutters are retracted. Side edges 13 are formed on the cutters. A rivet 21 braces the lower ends of the jaws, the cutters having recesses 22 to embrace the rivet when retracted.
Patent GB-187603-A (GB)
Title: Method and apparatus for recovering and concentrating acetic acid from pyroligneous acid
IPC: C07C51/48
Filed: 1922-10-16
Abstract: 187,603. Brewster, T. J. Oct. 19, 1921, [Convention date]. Purifying liquids. -Acetic acid is extracted from crude pyroligneous acid by treatment with a volatile solvent, which is immiscible with water and of materially differe n t specific gravity, such as ether, tetrachlorethane, chloroform, ethyl chloride and ethyl bromide. The tarry bodies may be first removed by distillation, b u t preferably the vapours resulting from the distillation of cellulosic material are passed through a scrubber maintained at a temperature above the boiling point of water and down which trickle high-boiling oils of tar. The wood alcohol may then be substantially removed by distillation. In carrying out the process with ether as solvent, the dilute acetic acid solution from a tank 11 is delivered to a distributor 13 in the upper portion of a column 10 which may be filled with broken brick &c. The conduit 12 mav carry a valve 26 controlled by a float 25. Ether from a tank 14 is delivered to a distributor 16 at the foot of the column, so that the acetic acid solution is extracted systematically by the ether rising through it. The extracted liquor is withdrawn through the pipe 17 to an exhaust column 18 with a water-jacketed dephlegmator 20. Steam is blown in through the pipe 19 and the ether vapour passes by a pipe 22 to a condenser 23 and thence to the tank 14. The ether-free extracted liquor is drawn off from the column 18. The ether extract is transmitted by the trapped pipe 24 to the middle of a column 27 with a waterjacketed rectifier 31 and vapour injection at its base from a still 28 into which the acetic acid and vapour condensate runs by way of the trapped pipe 30. Again the evaporated ether is delivered to the condenser 23. In the case of heavy solvents such as chloroform, the solvent is introduced at the top and the acetic acid solution at the bottom of the column 10. The Specification as open to inspection under Sect. 91 (3) (a) states that the above process and apparatus, for the extraction of acetic acid from its dilute solution, is applicable to the extraction of other substances from their dilute solutions. This subject-matter does not appear in the Specification as accepted.
Patent GB-964323-A (GB)
Title: Improvements in or relating to the formation of coatings on ferrous articles
IPC: C23C10/22
Filed: 1960-08-15
Abstract: An alloy coating is formed on a ferrous article by contacting the article with a bath containing molten Ca, Sr, Ba or Mg and at least one of the coating elements Cr, Ni, Mn and Co.  The bath should be at a temperature between 900  DEG C. and the melting point of the article, and may also contain an alkaline earth metal halide, e.g. CaF2 or BaF2.  Coatings may be formed on cast iron, mild steel and stainless steel, e.g the austenitic surface of an 18/8 stainless steel may be changed to a ferritic surface by increasing the Cr content while simultaneously some or all of the Ni content is dissolved by the bath.  Intricate shapes may be made by dissolving away the ferrous substrate from a coated article, if necessary after puncturing the coating.
Patent GB-671448-A (GB)
Title: Improvements in or relating to machines for harvesting hops and the like crops
IPC: A01D46/02
Filed: 1949-11-05
Abstract: 671,448. Hop-picking machines. BURR, E. H., and STRETTLE, J. Sept. 12, 1950 [Nov. 5, 1949], No. 28382/49. Classes 6(iii) [Also in Group II] A hop-picking machine comprises a wheeled carriage 1 having stripping elements 3 arranged longitudinally on each side so that the bines, without being severed from the roots, may be stripped by being laid horizontally between the stripping elements as the machine travels slowly between the bine-rows. The stripping elements comprise vertical rods 4 carrying wire loops 16 in overlapping formation. The rods have reduced ends 5a, 9, 'the upper ends 9 being cranked and connected to a longitudinal bar to prevent rotation of the rods 4 except when required for clearing the elements. The wire loops may be replaced by plates having serrated edges, or by coiled springs in staggered formation. A rotary stripping device, Fig. 11, (not shown), is also described, comprising a toothed roller concentric with an internally-toothed concave surface. The stripping elements are arranged in two oppositely-acting, adjacent, rows on each side of the machine so that four bines may be stripped simultaneously. The strippings fall on to upwardly-travelling, longitudinal, conveyer bands 22 which feed transverse conveyers 23, in turn feeding a central longitudinal conveyer 24. The conveyers 22, 23 are foraminous to permit the passage of small fragments through to pans below. A further perforated conveyer 34 is arranged above the conveyer 24 and below fans 25 which create a suction, thus causing leaves to adhere to the conveyer 34. The leaves are sucked off the conveyer 34 on its upper run and discharged through a pipe 46. The hops are delivered to a rear elevator 38 leading to bagging means. For dealing with rows of different spacing, the banks of stripping elements 3 may be swung about vertical pivots at the front of the machine.
Patent GB-281461-A (GB)
Title: Improved means of lighting coal, coke or other fuel fires
IPC: F24B15/00
Filed: 1926-11-11
Abstract: 281,461. Russell, E. Nov. 11, 1926. Burners, mounting and attaching.-The openings of a gas burner for lighting domestic fires are protected from dust and ashes, when not in use, either by rotating the burner or by providing it with a revoluble slide or cover. In the construction shown, a tubular burner a is mounted in brackets b beneath the front edge of a grate, so that when not in use it occupies the position shown in Fig. 4, in which the holes c are covered by the frame f, whilst when in use it is rotated to the position shown in Fig. 5. The burner may be rotated by the handle of the gas cock which is formed with an extension connected by a rod to a lug on the burner.
Patent GB-189950-A (GB)
Title: Improvements in and relating to letter-spacing mechanism for typewriting machines
IPC: B41J19/18
Filed: 1921-10-26
Abstract: 189,950. Fairweather, W. C., (Underwood Typewriter Co.). Oct. 26, 1921. Letter-spacing mechanism; space-key actions. -Relates to arrangements for permitting the space-bar and universal bar to operate the dogrocker independently, and comprises means for adjusting the throw and normal position of the dog-rocker. The arrangement is shown in the Figure as embodied in a machine in which the universal bar 22 is operated by type-levers 13 and is provided with means for operating the vibrator-lever 24, and a fork 23<c> for operating the ribbon feed. The dog-rocker 19 is provided with a. screw 42 normally engaging the head 34 of a slide 33 which is mounted in a bush 39 on the framework and is provided with a head 37 connected to the space-bar 25, the dog-rocker being operated in the usual manner by the universal bar or independently by the space-bar. The ink-ribbon devices are not operated by the space-bar. The throw of the dog-rocker is adjusted by means of the bush 39, and the normal position of the dog-rocker is adjusted, without altering the throw, by means of the screw 42. Preferably the slide has a threaded end engaging the head 37, and the head 34 is formed with a screw-driver nick 41. The space-bar levers 26 are secured to a rock-shaft 27 having an adjustable arm 29 connected by a link 31 to the head 37. The arm is provided with a pin 49 engaging a slot 48 in the link, a light spring 50 maintaining engagement. The stroke of the space-bar is determined by the engagement of stop-pads 46 on the framework, and stop-pads 45 on the space-bar levers, with the space-bar and the frame work respectively. The space-bar is returned by a spring 44, the spring 50 yielding, if necessary, when the space-bar is arrested.