US3421756A - Laundry feeding machine - Google Patents

Laundry feeding machine Download PDF

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Publication number
US3421756A
US3421756A US550439A US3421756DA US3421756A US 3421756 A US3421756 A US 3421756A US 550439 A US550439 A US 550439A US 3421756D A US3421756D A US 3421756DA US 3421756 A US3421756 A US 3421756A
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Prior art keywords
clamps
conveyor
leading edge
machine
article
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US550439A
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English (en)
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Henry John Weir
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McGraw Edison Co
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McGraw Edison Co
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Priority claimed from GB4265/66A external-priority patent/GB1169513A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D06F67/04—Arrangements for feeding or spreading the linen

Definitions

  • a laundry atwork feeding machine comprising a conveyor having an upper run which moves in a forward direction, a pair of clamps adapted to grip the two corners of ⁇ a leading edge of a flatwork article to be fed, means for moving the clamps apart transversely and holding them apart under tension in the leading edge whereby the atwork article is stretched laterally, means coupled with the conveyor for advancing the clamps thereon held apart over the upper run of the conveyor at the same speed and means for opening the clamps to drop the leading edge on the conveyor whereby rucking of said leading edge is prevented.
  • the invention relates to laundry feeding machines and has particular application in machines for feeding laundry articles (usually flat-work articles such as sheets) to ironing machines.
  • a laundry feeding machine comprises a conveyor having an upper run which moves in a forward direction, a pair of clamps adapted to grip the two corners of a leading edge ofy a laundry article to be fed, means for moving the clamps apart transversely and holding them apart under tension in the leading edge, means coupled with the conveyor for advancing the clamps ⁇ thus held apart over the upper run of the conveyor at the same speed thereas and means ice for opening the clamps to drop the leading edge on the conveyor.
  • the present invention provides a laundry feeding machine which has a conveyor of its own with which the forward component of movement of a pair of clamps is synchronised by a coupling between means provided for advancing the clamps and the conveyor.
  • the feeding machine conveyor speed is :adjustable so that it can be set to be slightly slower than the slowest speed of the following ironing machine conveyor.
  • a further object of the invention is to overcome this problem. To this end there are preferably provided means for releasing, before the leading edge is dropped, the force which holds the clamps apart against the tension in the leading edge.
  • clamps will be held part against the tension in the leading edge by some form of brake and generally it would be sufficient simply to release the brake shortly before the clamps are opened, the inertia of the clamps and equipment linked thereto being suicient to prevent the releasing tension of the article from drawing the corners of the leading edge inwardly beyond their normal positions,
  • a damper which may take the form, for example, of a pneumatic or hydraulic dashpot.
  • each clamp comprises a pair of backwardly facing jaws.
  • an operator can stand at the back of the machine, insert the two ends of the leading edge of the article between the jaws which face her and energise the clamp transport so that the leading edge is carried away over the upper run of the conveyor.
  • this type of jaw there is a danger that, unless precaustions are taken on opening the clamps, the leading edge will fold back over the article.
  • means are provided for moving the clamps relative to the article in a forward direction as the clamps are opened. It is possible to provide means which accelerate the clamps forward immediately they are opened.
  • the clamps are driven forward by a pneumatic ram which would normally be effective to move the clamps forward considerably faster than the forward speed of the conveyor, but the action of which is restricted by a clutch linked to the conveyor drive so that the clamps travel ⁇ at exactly the speed of the conveyor. On opening the clamps the clutch is simultaneously released and this allows the ram to accelerate the clamps away.
  • the clamps continue to move forwards at a constant speed and that the article is instantaneously retarded as the clamps are opened.
  • this is accomplished by a roller over which the trailing part of the article is draped as the article is moved forwards and means for retarding the roller instantaneously as the clamps are opened, thereby causing an instantaneous drag on the article.
  • the machine be able to accommodate articles of a Wide range of widths and it is therefore necessary to arrest the transverse movement of the clamps at a place appropriate to the width of the particular article being fed. In accordance with further aspects of the invention this may be accomplished in two ways.
  • sensing means are provided for initiating the arrest of the transverse movement of the clamps when the leading edge of the article held thereby approaches a straight line.
  • the sensing means may comprise a lamp and photo-cell arrangement which casts a beam of light across substantially the straight line between the clamps and which issues an arrest signal when the beam of light is broken by the leading edge of the article or a micro-switch having an operating arm which is engaged by the leading edge of the article as the leading edge is straightened, circuit means being provided whereby an arrest signal is issued on engagement of the operating arm.
  • tension-responsive means comprises a resilient mount whereby at least one of the clamps is mounted on the means for driving the clamps transversely, a micro-switch coupled with the mount to be operated when the associated clamp is moved a predetermined amount against the resilience of the mount, and circuit means whereby an arrest signal is issued on operation of the micro-switch.
  • each clamp comprises a pair of backwardly facing jaws, a spring for holding the jaws closed, an opening member adapted to engage a stop on the machine and thereby open the jaws against the spring force when the clamp has been moved forwards a predetermined distance, a latching mechanism for holding the jaws open against the spring force and a release catch for releasing the latching mechanism to clamp the jaws on to the article to be held, the release catch being manually operable by the operator as the article is placed between the jaws.
  • the clamps are mounted on a beam which extends above and across the conveyor, there being provided means for moving the beam forward and back over the conveyor, coupling means comprising an endless loop arrangement, one clamp being fixed to one side of the loop and the other clamp being fixed to the other side of the loop, the clamps being so arranged that movement of the loop arrangement moves the clamps across the beam symmetrically away from or towards the centre of the beam, and driving means for moving the loop arrangement.
  • the loop may be constituted by an endless wire running over pulleys mounted one on each end of the beam, the driving means comprises a linear driving mechanism coupled directly to one of the clamps, and there is provided a brake mechanism comprising a brake rod fixed to one of the clamps and extending across the beam and a friction brake fixed on the beam and arranged, on actuation, to clamp the brake rod and thereby arrest the transverse movement of the clamps and hold the clamps in the arrested position.
  • the loop may be constituted by an endless chain arrangement running over sprockets mounted one on each end of the beam and one of the sprockets includes a brake which, on actuation, brakes the sprocket and thereby arrests the transverse movement of the clamps and holds the clamps in the arrested position.
  • the chain arrangement may be constituted by a single endless chain running across the width of the machine.
  • the chain arrangement when provided, be constituted by two endless chains each extending over a respective half of the machine width and each running around a respective sprocket at the centre of the machine, the two central sprockets being coupled to move together, With this arrangement one clamp is fixed to one run of one chain and the other clamp is fixed to the other run of the other chain.
  • the trailing part of the article is drawn upwardly through an air-box arrangement which extends at the rear of the machine across its width and which defines a substantially vertical channel through which the trailing part of the article is drawn, the channel having an opening at the rear to allow access of the article thereto, the air-box arrangement comprising hollow air-boxes and means for supplying air under pressure thereto, the air-boxes having louvres which open into the channel and which ⁇ direct pressurised air from within the air-boxes horizontally into the channel outwardly from its centre.
  • FIGURE l is a perspective view, from the lower righthand side and rear of a laundry feeding machine in accordance with the invention.
  • FIGURE 2 is a plan view of the machine
  • FIGURE 3 is a rear elevation of 4the machine
  • FIGURE 4 is a perspective view of detail of the clamp mounting arrangement of the machine
  • FIGURE 5 is a schematic sectional end elevation illustrating the photo-electric sensing device and FIG- URE 6 is a similar view illustrating a mechanical equivalent thereof;
  • FIGURE 7 is a sectional side elevation, taken at A-A of FIGURE 2;
  • FIGURES 8 and 9 show alternative clamp transport arrangement
  • FIGURE 10 is a schematic diagram illustrating an alternative form of overlap prevention sensing device.
  • FIGURE l1 is an illustration of an alternative form of clamp.
  • the machine has a freestanding frame 1 in which is mounted a conveyor 2 comprising a number of parallel bands 2a which, when the machine is in operation run continuously and at nominally constant-speed around a series of rollers of which the rear-most is shown at 3.
  • a front roller 4 (FIGURE 2) is provided near the front ⁇ of the machine and is the same height as roller 3 so that over the run between rollers 3 and 4 the conveyor is substantially horizontal.
  • a front end roller (not shown) is provided in front and below yroller 4 so that the upper run of the conveyor is inclined downwardly after passing over roller 4.
  • the conveyor moves in the forward direction indicated by the arrow (FIGURE 2) and the function of the machine is to lay a laundry flat-work article (taken for the sake of illustration to be a sheet) on to the upper run of the conveyor 2 with its leading edge straight and perpendicular to the direction of movement, the sheet being drawn forwards by the conveyor and delivered from the foremost end of the conveyor of an ironing machine (not shown), behind which the feeding machine is placed.
  • a laundry flat-work article taken for the sake of illustration to be a sheet
  • the drive to the conveyor is provided through roller 3 which has a sprocket 5 (FIGURE l) on one end which is driven by chain through a variable ratio gearbox 6 from an electric motor 7.
  • a hand-wheel 8 is effective to adjust the gear ratio so that the forward speed of the conveyor may be adjusted to be slightly slower than the slowest speed of the ironing machine conveyor. In this way it is ensured that in being fed onto the ironing machine conveyor the sheet experiences a dragging tension and is therefore not rucked in the transfer.
  • a machine operator stands at the rear of the machine and at a convenient height there is provided a pair of clamps 9 which have backwardly facing jaws 10. The operators job is to insert between these two sets of jaws, which are normally two feet apart, the two corners of the leading edge of the sheet and then to press an operating button 11 to initiate the machine operation.
  • Clamps 9 are mounted on a cross-beam 12 which extends from side to side of the machine, the clamps being mounted to slide sideways on guide rods 13.
  • the clamps are coupled to move together symmetrically with respect to the centre of the beam by an endless loop of wire 14 which runs over pulleys 15 at each end of the beam.
  • the right-hand clamp is fixed to the upper run of the loop and the left-hand clamp to the lower run. This is shown best in FIGURE 4.
  • Button 11 is a switch which is connected in circuit with an electricity supply and a solenoid operated pneumatic valve (not shown). Depression of button 11 by the operator when the corners of the leading edge of the sheet are held by the clamps opens the valve and a-dmits air from a pressure line (not shown) to one side of a double acting pneumatic ram 16.
  • the cylinder of the ram is fixed on the cross-beam 12 and the piston is coupled through the connecting rod 17 to the right-hand clamp. Therefore, depression of button 11 has the effect of pushing the righthand clamp to the right from its rest position and, because the clamps are coupled together by wire 14, the left-hand clamp is drawn simultaneously to the left. This straightens the leading edge of the sheet.
  • a photo-electric sensing arrangement comprising a lamp 18 and a photo-cell 19 is provided to determine when the leading edge has been straightened and thus when the transverse movement of the clamps should be arrested.
  • lamp 18 throws a narrow beam of light 20 to photo-cell 19 along a path which crosses the vertical plane through the two sets of clamp jaws at a point slightly lower than the straight line joining the two sets of jaws.
  • the sheet brakes the beam when its leading edge is almost straight.
  • Interruption of the light beam 20 causes an amplifier (not shown) associated with the photo-cell to issue an arresting signal in the form of supply of energising current to an electromagnetic brake 21.
  • This lbrake is effective to act upon a brake rod 22 which passes therethrough and which is xed at one end to the right-hand clamp 9.
  • the body of the brake is fixed on beam 12 and ener-gisation thereof arrests the transverse motion of both clamps.
  • the timing of the arresting signal is arranged in conjunction with the inherent delays in the braking system so that the clamps are arrested and held by the brake against tension in the leading edge.
  • FIGURE 5 shows the position of the sheet (shown at 23) at the moment the Ibeam 20 is broken.
  • FIGURE 6 shows an alternative form of sensing device which comprises .a micro-switch unit 24 mounted at the centre of beam v12 and having an operating arm 25 which depends below the line joining the clamp jaws. As the leading edge of the sheet is straightened its centre pushes arm 25 upwards iand operates the micro-switch which is shown at 26.
  • the arresting signal is effective also to close the pneumatic valve whereby Iair is admitted to ram 16 and to open a solenoid operated valve (not shown) which applies air under Ipressure to one side of a further double acting air ram 27 (FIGURE 1).
  • Ram 27 is fixed by its cylinder to the frame of the machine and has its piston coupled through connecting rod 28 to beam 12. Its purpose is to provide drive for moving the beam forward and back over the conveyor, the beam being mounted on a carriage 29 at each end having wheels which run on runners 30. Actuation of ram 27 at the time of the arrest of the clamps drives the beam, and therefore the clamps with the tensioned leading edge of the sheet, forwards over the conveyor.
  • Ram 27 is capable of 4accelerating beam 12 quickly to a speed appreciably greater than the conveyor speed.
  • the forward speed of the beam is limited to exactly the speed of the conveyor by a pair of control chains 31, one at each side of the machine and each having a horizontal upper run 32 extending in the fore-and-aft direction of the machine to which run is fixed through a coupling member 33, the respective carriage 29.
  • the control arrangement for the right-hand carriage is shown in FIGURE 1 and for the left-hand carriage in broken line in FIGURE 7.
  • Chains 31 are controlled by sprockets 34 which are couped together by a shaft 35.
  • a sprocket 36 on the left-hand end of roller 3 is coupled through a free-wheel ⁇ device by chain to the left-hand sprocket 34 (FIGURE 7).
  • the arrangement is such that chains 31 can be driven by the carriages 29 so that the runs 32 may be moved forwards at a slower speed than conveyor 2 or even backwards but the maximum forward speed of runs 32 is limited to the forward speed of the conveyor.
  • ram 27 when ram 27 is actuated it soon accelerates beam 12 to the speed of the conveyor 2 and thereafter the forward speeds of beam and conveyor are exactly the same.
  • the left-hand end of beam 12 has a linear cam face 37 (FIGURE 7) which operates micro-switches 38, 39 and 40 in dependence upon the forward position of beam 12.
  • switch 39 When the beam has been driven forwards far enough for surface 37 to actuate switch 39 the position of the beam is such that a small further forward movement will open the jaws of the clamps 9 (in a manner to be described) and release the sheet.
  • micro-switch 39 is operated and this has the effect of opening the circuit which is energising brake 21.
  • Air ram 16 is not activated at this time and therefore release of the brake allows the clamps 9 to be drawn slightly together by the releasing tension in the leading edge of the sheet. Releasing the tension in this way ensures that the leading edge of the sheet, when it is dropped, is straight.
  • Actuation of switch 39 has the further effect of opening 1a.
  • solenoid operated pneumatic valve (not shown) which controls the supply of air to a ram 41 (FIGURE 1) which operates a brake 42.
  • Brake 42 is effective to stop the mot-ion of a feed roller 43 situated immediately behind the conveyor and over which the trailing part of the sheet is drawn as the clamps move forwards.
  • Roller 43 is normally rotated through -a chain drive incorporating a free-wheel device at the same peripheral speed as the conveyor.
  • Actuation of brake 42 stops roller 43 and this has the effect of causing a drag on the sheet which, by taking into account the inherent ⁇ delays in the actuation of brake 42, is arranged to occur just as the jaws of the clamps open.
  • the clamps 9 are illustrated in detail in FIGURE 7 and the jaws 10 comprise a xed lower jaw and a movable upper jaw which is carried on one end of an arm 47 pivotted in the clamp body -at 48. Arm 47 is urged in an anti-clockwise direction about pivot 48 by a spring 49.
  • a latching member S0 which engages a pin 51 on arm 47 and which is kept in place by a spring 52.
  • a thumb catch 53 is mounted by a pivot pin 54 on the outside of the clamp body and is linked by a rod 55 to the latching member 50.
  • each air-box arrangement has hollow air-boxes 60 which define between them a shallow channel 61 up through which the sheet is drawn.
  • the rear of the channel is o pen to allow access for the sheet.
  • the outer walls of the air boxes are plain but the inner walls have louvers 62 arranged to direct air horizontally outwardly into the channel 61 from the centre of the machine (FIGURE 2).
  • the air is supplied under pressure to the inside of the air-boxes by centrifugal fans 63 driven by electric motors 64. The sideward dragging effect on the sheet of the air with the channels spreads the sheet from its centre line.
  • the circuit which activates ram 16 to draw the clamps apart is interlocked with a switch which senses the passage of the trailing edge of the preceding sheet so that the machine cycle is inhibited until the trailing edge of the preceding sheet has passed.
  • a suitable sensing switch is constituted by the lamp 64 and photocell ⁇ 65 arrangement illustrated (FIGURE 5). Only when the beam of light 66 is not interrupted will the machine cycle be allowed to proceed.
  • FIGURE 8 shows at (a) a schematic rear elevation of beam 12 with an alternative clamp drive mechanism and at (b) a sectioned side elevation taken at B-B.
  • the clamps (not shown) are carried on supports 9a, 9b which are fixed respectively to the upper and lower runs of an endless belt 67.
  • the belt runs on pulleys 68, 69 at each end, one of which is driven through a friction clutch by a reversible electric motor 70.
  • the transverse movement -of the clamps is arrested by a solenaid operated brake 71 which acts on the belt.
  • FIGURE 9 is a view similar to FIGURE 8 in which belt 67 is replaced by a loop composed in part by chain portions 72 which pass around sprockets 73 and in part by rods 74.
  • the drive is provided by air ram 16 which is coupled to clamp 9a through a compression spring 75a.
  • Another compression spring 75b couples clamp 9b with its rod 74.
  • the arrest of the transverse movement of the clamps is initiated not by the straightening of the leading edge but by the attainment of a predetermined tension therein.
  • the clamps tend to be held inwards by the tension in the leading edge and the tension compresses springs 75a and 75b.
  • a micro-switch 76 is mounted on clamp 9a and when spring 75a has been compressed by the tension in the sheet this switch is operated by abutment with the end of connecting rod 17. Operation of micro-switch 76 has the same effect as breaking the light beam 20 (FIGURE 5).
  • FIGURE l0 shows schematically another way of sensing the passage of the trailing part of the preceding sheet.
  • feed roller 43 is replaced by a roller 43a which has a peripheral speed twice the speed of the conveyor.
  • the trailing part of the sheet 23 is wound into a Well between roller 43a and the conveyor.
  • a lamp 77 and photocell 78 sense the passage of the trailing edge of the sheet.
  • FIGURE 1l illustrates another form of clamp.
  • the jaws are loaded to the closed position by a spring 79 and opening is effected at the appropriate time by a pneumatic ram 80 ⁇ operated by an electrically controlled air valve.
  • a laundry feding machine comprising a conveyor having an upper run which moves in a forward direction, a pair of clamps adapted to grip the two corners of the leading edge of a laundry article to be fed, means for moving the clamps apart transversely and holding them apart under tension in the leading edge whereby the laundry article is laterally held in tension, means coupled with the conveyor for advancing the clamps thus held apart over the upper run of the conveyor at the same speed thereas and means for opening the clamps to drop said leading edge on to the conveyor whereby ing of said leading edge is prevented.
  • a machine as claimed in claim 1 wherein means are provided for releasing, before the leading edge is dropped, the force which holds the clamps apart against the tension in the leading edge.
  • each clamp comprises a pair of backwardly facing jaws.
  • a laundry feeding machine comprising a conveyor having an upper run which moves in a forward direction, a pair of clamps adapted to clamp the two corners of a leading edge of a laundry article to ⁇ be fed, means for moving the clamps apart transversely and holding them apart under tension in the leading edge, means coupled with the conveyor for advancing the clamps thus held apart over the upper run of the conveyor at the same speed thereas, means for opening the clamps to drop the leading edge on to the conveyor and means for moving the clamps relative to the article in a forward direction as the clamps are opened.
  • a machine as claimed in claim 4 wherein the means for moving the clamps relative to the article comprises a roller over which the trailing part of the article is dropped as the article is moved forwards and means for retarding the roller instantaneously as the clamps are opened thereby causing an instantaneous drag on the article.
  • sensing means are provided for initiating the arrest of the transverse movement of the clamps as the leading edge of the article held thereby approaches a straight line.
  • a laundry feeding machine comprising a conveyor having an upper run which moves in a forward direction, a pair of clamps adapted to grip the two corners of the laundry article to be fed, means for moving the clamps apart transversely and holding them apart under tension in the leading edge, sensing means for initiating the arrest of the transverse movement of the clamps when the leading edge of the article held thereby approaches a straight line, means coupled to the conveyor for advancing the clamps thus held apart of the upper run of the conveyor at the same speed thereas, means for opening the clamps to drop the leading edge on the conveyor and a sensing means comprising a lamp and a photocell arrangement lwhich casts a beam of light across substantially the straight line of the clamps and which issues an arrest signal when 9 the beam of light is broken by the leading edge of the article.
  • sensing means comprises a micro-switch having an operating arm engaged by the leading edge of the article as the leading edge is straightened, circuit means being provided whereby an arrest signal is issued upon an engagement of the operating arm.
  • a laundry feeding machine comprising a conveyor having an upper run which moves in a forward direction, a pair of clamps adapted to grip the two corners of the leading edge of a laundry article to be fed, means for moving the clamps apart transversely and holding them apart under tension in the leading edge, means for initiating the arrest of the transverse movement of the clamps when the tension of the leading edge of the article held thereby exceeds a predetermined limit, means coupled with the conveyor for advancing the clamps thus held apart over the upper run of the conveyor at the same speed thereas and means for opening the clamps to drop the leading edge on the conveyor.
  • the tension responsive means comprises a resilient mount whereby at least one of the clamps is mounted on the means for driving the clamps transversely, a micro-switch coupled with the mount to be operated when the associated clamp is moved a predetermined amount against the resilience of the mount, and circuit means whereby an arrest signal is issued on operation of the micro-switch.
  • a laundry feeding machine comprising a conveyor having an upper run which -moves in a forward direction, a pair of clamps adapted to grip the two corners of the leading edge of a laundry article to be fed, at least one of said clamps comprises a pair of backwardly facing jaws, a spring for holding the jaws closed, an opening member adapted to engage a stop on the machine and thereby open the jaws against the spring force when the clamp has been moved forwards a predetermined distance, a latching mechanism for holding the jaws open against the spring force, a release catch for releasing the latching mechanism to clamp the jaws on the article to be held, means for moving the clamps apart transversely and holding them apart under tension in the leading edge, means coupled with the conveyor for sensing the clamps thus held apart over the upper run of the conveyor at the same speed thereas and means for opening the clamps to drop the leading edge on the conveyor.
  • a laundry feeding machine comprising a conveyor having an upper run which moves in a forward direction, a pair of clamps adapted to grip the two corners of a leading edge of a laundry article to be fed, said clamps being mounted on a beam which extends above and across the conveyor, and being provided means for moving the beam forward and back over the conveyor, coupling means comprising an endless loop arrangement, one clamp being ixed to one side of the loop and the other clamp being xed to the other side of the loop, the clamps being so arranged that movement of the loop arrangement moves the clamps across the beam symmetrically away from or towards the center of the beam, driving means for moving the loop arrangement, means coupled with the conveyor for advancing the clamp thus held apart over the upper run of the conveyor at the same speed thereas, means for opening the clam-ps to drop the leading edge on to the conveyor, constituted of an endless wire running over pulleys mounted one on each end .of the beam, the driving means comprising a linear driving mechanism coupled directly to one of the clamps, a brake
  • a machine as claimed in claim 14 wherein the loop is constituted by an endless chain arrangement running over sprockets lmounted one on each end of the beam, one of the sprockets including a brake which on actuation brakes the sprocket and thereby arrests the transverse movement of the clamps and holds the clamps in the arrested position.
  • a laundry feeding machine comprising a conveyor having an upper run which moves in a forward direction, a pair of clamps adapted to grip the two corners of a leading edge of a laundry article to be fed, means for moving the clamps apart transversely and holding them apart under tension in the leading edge, means coupled with the conveyor advancing the clamps thus held apart of the upper run of the conveyor at the same speed, means for opening the clamps to drop the leading edge on to the conveyor and air-box means placed below said clamps and whereby the trailing part of the laundry article is drawn

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Discharge By Other Means (AREA)
US550439A 1965-05-21 1966-05-16 Laundry feeding machine Expired - Lifetime US3421756A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB21725/65A GB1105901A (en) 1965-05-21 1965-05-21 Improvements relating to laundry feeding machines
GB2315665 1965-05-31
GB5191365 1965-12-07
GB4265/66A GB1169513A (en) 1966-01-31 1966-01-31 Improvements in Laundry Feeding Machines.

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US3421756A true US3421756A (en) 1969-01-14

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US550439A Expired - Lifetime US3421756A (en) 1965-05-21 1966-05-16 Laundry feeding machine

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BE (1) BE681260A (da)
DE (1) DE1610282B1 (da)
DK (1) DK113632B (da)
GB (1) GB1105901A (da)
NL (2) NL6606965A (da)
SE (1) SE314652B (da)

Cited By (25)

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US3604132A (en) * 1970-05-18 1971-09-14 Mc Graw Edison Co Spreader device for flatwork
US3664046A (en) * 1970-05-18 1972-05-23 Mc Graw Edison Co Multiple station laundry feeder and control therefor
US3729846A (en) * 1970-05-01 1973-05-01 Mc Graw Edison Co Laundry feeding machine
US3791057A (en) * 1971-09-08 1974-02-12 Baker Perkins Jaxons Ltd Sheet straightening and tensioning apparatus
US4050173A (en) * 1974-09-04 1977-09-27 Firma Bora, S.A. Laundry feeding apparatus
EP0029726A1 (en) * 1979-11-22 1981-06-03 Henry John Weir Laundry spreading apparatus
US4299521A (en) * 1979-10-23 1981-11-10 Ejnar Jensen & Son A/S Apparatus for spreading and feeding of articles of flatwork
US4345391A (en) * 1979-07-09 1982-08-24 Weir Henry J Laundry feeding machine
US4501529A (en) * 1981-05-19 1985-02-26 Herbert Kannegiesser Gmbh & Co. Apparatus for feeding laundry articles to an ironing machine
US4553662A (en) * 1982-09-14 1985-11-19 Ejnar Jensen & Son Maskinfabrik A/S Apparatus for feeding pieces of laundry on a conveyor
US5172502A (en) * 1991-06-21 1992-12-22 Chicago Dryer Company Flatwork feeder having flatwork sensing and clamping stations
EP0554204A1 (en) * 1992-01-29 1993-08-04 EJNAR JENSEN & SON A/S Apparatus for feeding flatwork articles to a laundry processing unit, for example an ironing roller
US5440810A (en) * 1994-03-16 1995-08-15 Chicago Dryer Company Apparatus for feeding and spreading laundry articles
US5515627A (en) * 1994-07-27 1996-05-14 Mccabe; Stanley G. Apparatus and method for feeding flatwork articles
US6826856B1 (en) 2003-08-06 2004-12-07 Finishtech Ltd. Laundry article spreader apparatus and method
US20050028409A1 (en) * 2003-08-06 2005-02-10 Finish Tech, Ltd. Spreader apparatus and method for articles of laundry
US20060236872A1 (en) * 2005-04-21 2006-10-26 Nordberg Robert B Machine for making thin flatbread
US20080092415A1 (en) * 2006-09-13 2008-04-24 Mccabe Stanley G Article of laundry spreader and stacker
US20080298930A1 (en) * 2007-06-04 2008-12-04 Mccabe Stanley G Linen spreader apparatus and method
US20080295367A1 (en) * 2007-06-04 2008-12-04 Mccabe Stanley G Linen spreader apparatus and method
US20110158780A1 (en) * 2007-12-17 2011-06-30 Steen Nielsen Method of transferring a piece of cloth and a laundry apparatus for performing the method
US20120222844A1 (en) * 2011-03-04 2012-09-06 General Electric Company Rotating machine apparatus
US20160024706A1 (en) * 2014-07-24 2016-01-28 Girbau Robotics Machine for spreading out and loading flat clothing articles with an auxiliary device that deposits and feeds flat clothing articles on a conveyor belt
US10487444B2 (en) * 2018-03-09 2019-11-26 G.A. Braun, Inc. Spreader-feeder
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US3664046A (en) * 1970-05-18 1972-05-23 Mc Graw Edison Co Multiple station laundry feeder and control therefor
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US4553662A (en) * 1982-09-14 1985-11-19 Ejnar Jensen & Son Maskinfabrik A/S Apparatus for feeding pieces of laundry on a conveyor
US5172502A (en) * 1991-06-21 1992-12-22 Chicago Dryer Company Flatwork feeder having flatwork sensing and clamping stations
EP0554204A1 (en) * 1992-01-29 1993-08-04 EJNAR JENSEN & SON A/S Apparatus for feeding flatwork articles to a laundry processing unit, for example an ironing roller
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US20050028409A1 (en) * 2003-08-06 2005-02-10 Finish Tech, Ltd. Spreader apparatus and method for articles of laundry
US6826856B1 (en) 2003-08-06 2004-12-07 Finishtech Ltd. Laundry article spreader apparatus and method
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US6883258B2 (en) 2003-08-06 2005-04-26 Finish Tech., Ltd. Spreader apparatus and method for articles of laundry
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US20060236872A1 (en) * 2005-04-21 2006-10-26 Nordberg Robert B Machine for making thin flatbread
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US20080092415A1 (en) * 2006-09-13 2008-04-24 Mccabe Stanley G Article of laundry spreader and stacker
US20080295367A1 (en) * 2007-06-04 2008-12-04 Mccabe Stanley G Linen spreader apparatus and method
US7827709B2 (en) 2007-06-04 2010-11-09 Mccabe Stanley G Linen spreader apparatus and method
US7836617B2 (en) 2007-06-04 2010-11-23 Mccabe Stanley G Linen spreader apparatus and method
US20080298930A1 (en) * 2007-06-04 2008-12-04 Mccabe Stanley G Linen spreader apparatus and method
US9873975B2 (en) 2007-12-17 2018-01-23 Jensen Denmark A/S Method of transferring a piece of cloth and a laundry apparatus for performing the method
US20110158780A1 (en) * 2007-12-17 2011-06-30 Steen Nielsen Method of transferring a piece of cloth and a laundry apparatus for performing the method
US8845259B2 (en) * 2007-12-17 2014-09-30 Jensen Denmark A/S Method of transferring a piece of cloth and a laundry apparatus for performing the method
US20120222844A1 (en) * 2011-03-04 2012-09-06 General Electric Company Rotating machine apparatus
US9657434B2 (en) * 2014-07-24 2017-05-23 Girbau Robotics Machine for spreading out and loading flat clothing articles with an auxiliary device that deposits and feeds flat clothing articles on a conveyor belt
US20160024706A1 (en) * 2014-07-24 2016-01-28 Girbau Robotics Machine for spreading out and loading flat clothing articles with an auxiliary device that deposits and feeds flat clothing articles on a conveyor belt
US10487444B2 (en) * 2018-03-09 2019-11-26 G.A. Braun, Inc. Spreader-feeder
CN118023023A (zh) * 2024-04-11 2024-05-14 江苏绿阳温室设备有限公司 一种用于对钢结构工程的自动化喷涂装置

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SE314652B (da) 1969-09-15
DK113632B (da) 1969-04-14
NL6606965A (da) 1966-11-22
BE681260A (da) 1966-10-31
NL133144C (da)
DE1610282B1 (de) 1971-10-07
GB1105901A (en) 1968-03-13

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