US2241318A

US2241318A - Machine for weaving

Info

Publication number: US2241318A
Application number: US110738A
Authority: US
Inventors: Frederick E Robson
Original assignee: SCARBOROUGH GUILD Ltd
Current assignee: SCARBOROUGH GUILD Ltd
Priority date: 1935-11-13
Filing date: 1936-11-13
Publication date: 1941-05-06
Anticipated expiration: 1958-05-06

Description

May 6, 1941. F. E. RoBsoN MACHINE FOR WEAVING 2 Sheets-Sheet 1 Filed Nov. 13, 1936 May 6, 1941- F. E. RoBsoN 2,241,318

MACHJNE FOR WEAVING Filed Nov. 13, 193e 2 sheets-sheet 2 M l l b 5 IrIl! b l l l 2 J Il! Lr/All o Patented May 6, 1941 aurais MACHINE Fon WEAvING Frederick E. Robson, Toronto, Ontario, Canada,

assigner to Scarborough Guild Limited, Scarborough, York, Ontario, Canada Application November 13, 1936, Serial No. 110,738 In Canada November 13, 1935 9 Claims.

The principal objects of the invention are to provide a small easily portable form of hand loom which may be readily taken apart or assembled so that it may be carried in a small light package whereby hand weaving may be widely practised.

Further and important objects are to provide a loom which may be very easily operated and in which the heddle rods may be positively manipulated to permit a wide range of pattern control.

The principal features of the invention consist in a rotatable weaving `frame whereby the warp may be easily, quickly and accurately wound, heddle supporting blocks secured to the frame, heddle rod lifts vertically slidable in the blocks, and means for raising the heddle rod supports, holding them in varying positions and lowering them simultaneously.

In the accompanying drawings, Figure 1 is a perspective View of my improved loom.

Figure 2 is an enlarged perspective detail of a portion of one of the side bars of the frame and one of the adjustable heddle rod supports.

Figure 3 is an enlarged Vertical section through the heddle rod support showing one of the individual heddle rod lifts in elevation.

Figure 4 is a horizontal sectional view of the heddle rod support taken on the line 4-4 of Fig ure 3.

Figure 5 is an enlarged side elevational view of the frame.

Figure 6 is a perspective detail of one of the heddle rod supports showing portions of the heddle rods in raised and lowered positions.

Referring to the accompanying drawings, the stand for supporting the loom frame is formed of a base I with two rigid uprights 2 between which is supported a cross rod 3, preferably of round metal which is secured in place by a wing nut 4 threaded on one end.

A pair of bars 5 preferably of wood. and square in cross section are pivotally mounted to swing on the rod 3. These bars are formed with threaded extensions 6 and 1 at opposite ends.

Broad flat end bars 8 and 9 are slidably mounted on the threaded extensions of the side bars, the bar 8 being clamped against the shouldered end of the side bars by nuts Il) and the bar 9 being secured in adjusted positions on the threaded extensions 1 by nuts I I arranged either side thereof. The distance between the end bars 8 and 9 may thus be readily adjusted.

The bars B and 9 are rounded on their outer faces to receive the warp threads I2 which are wound around the frame and when the winding is completed by simply rotating the frame on the rod 3 the end bars may be readily adjusted to tighten the warps to the desired tension.

A comb I3 is temporarily clamped between the end bar 8 and the shoulders I4 on the side bars to assist in the winding. This comb is provided with a removable top bar I5 which is temporarily held in place by pins I6 inserted through said bar and the comb frame.

After the warp threads are wound on the frame the comb may be released by loosening the nuts on the extensions 6 of the side bar thus releasing the comb for use in the weaving operations when desired.

The side bars 5 of the frame are formed with longitudinal grooves II and a plurality of spaced holes I8 extend through the bars from the bottom of th grooves.

Heddle support blocks I9, preferably of wood are formed with tongues 20 in the bottom end to t into the grooves I1 and threaded rods 2| secured in said blocks extend through the holes I8 and are secured in place by thumb nuts 22 on each side bar of the frame.

The blocks I9 are formed with a plurality of transverse vertical slots 23 and a narrow vertical slot 24 bisects the posts between the slots 23.

A metal heddle rod lift 25 is slida'bly mounted in each of the slots and is formed with thin vertical fins 26 which slide in the slot 24, thus holding the holders 25 from displacement, while per- -mitting them to slide freely in the vertical slots l23.

The lifts 25 are each formed with a hooked projection 21 extending well out from the outwardV side of the blocks I9 to enable their being of the slot the spring plate snaps in beneath the projection thus holding the lift in its elevated position. These spring plates extend completely across the outer side of the blocks I9 and will engage and hold any one or all of the holders I5 in a raised position. A handle 30 secured to each The lifts 25 are formed with notches 3I- on the inward sides at the top into which the notched ends 32 of the heddle rods 33 extend, said rods being thus held from falling out if the loom is allowed to swing.

'I'he heddle rods 33 are formed of flat wood strips and carry the looped heddle cords 34 which are looped around certain of the warp threads. f

The weaverwill select the various warpsl that he may desire to have looped to each heddle rod and While the present illustration shows four such rods, it will be readily understood that holders may be provided to accommodate any desired number of rods.

It will be noted that a small rubber or leather buiTer 35 is placed at the bottom of each' of the vertical slots in the blocks I9 to cushion the dropV of the heddle holders and thus prevent undesirable noise in the operation of the loom.

It will be readily understood by those skilled in the art of weaving that a loom such as described will be extremely easy to manipulate and that very accurate and rapid work may be accomplished by the heddle arrangement provided and by the means provided for the easy and accurate Winding and adjusting of the warps.

It will also be appreciated that the Several members may be very easily and quickly taken apart or Vput together when it may be desired to transport the loom and when disassembled the parts may be grouped together in a small light package which will be Very easy to handle and the parts are all of simple, strong and durable construction.

What I claim as my invention'is:

1. In a loom the combination with a rectangular frame having adjustable end bars and a stand pivotally supporting said frame, of blocks mounted on the sides of said frame each having a plurality. of vertical slots therein, heddle rods, members slidable in each of said slots having notches to hold the ends of said heddle rods and having projections for lifting said slidable members, spring means for engaging and holding Vsaid slidable members in a raised position, and means for operating said spring holding means to release all of said slidable members simultaneously.

2. A deviceas claimed inclaim 1 in which each of the slidable members is formed With a lug projecting from the slots in which they slide, a flat bowed spring plate secured to the outerside of each block adapted to be engaged by the projecting lugs of the slidable members, and a handlevsecured to each spring plate adapted to be pressed outwardly to spring said plate to release all of the slidable members engaging said plate simultaneously.

3. A device as claimed in claim l in which the heddle rods are formed with notches in the un-l der edge forming lugs to extend into the notches inv said slidable members.

4, In a hand weaving loom, the combination Yof a weaving frame having side bars, a heddle support at each side of the weaving frame, eachof said heddle supports having a series of Verciated with said slots to retain each lift independently in its elevated position, and means to release said retaining means to cause said lifts to return to normal position simultaneously.

5. In a hand weaving loom, the combination of a weaving frame having side bars, a heddle support at each side of the weaving frame, each of said heddle supports having at least one vertical slot therein, the slots of each of said heddle supports being in alignment, a heddle rod, heddle rod lifts vertically slidable in said slots on which the ends of the heddle rod are adapted to rest, said lifts normally lying at the lower portion of said slot and being independently adjustable at will in said slot to an elevated position, and spring means associated with said slots, automatically actuated by the raising of the lifts, to retain the lifts in their elevated positions.

6. In a hand Weaving loom, the combination of a weaving frame having side bars, a heddle support at each side of the weaving frame, each of said heddle supports having a series of vertical slots therein, the slots of each of said heddle supports being aligned in pairs, a corresponding series of heddle rods, the ends whereof are adapted to be inserted in opposite pairs of said slots, said heddle rods normally lying at the lower portion of said slots, said heddle rods being independently adjustable at will in said slots to an elevated position, retaining means co-operating with the slots of each of said heddle supports to retain the ends of each heddle rod independently in their elevated positions, the retaining means co-operating with the slots of each heddle support being movable by a single manual J operation to substantially simultaneously release the elevated ends of the rods in all the slots of such heddle support and permit them to return to normal position.

7. In a hand weaving loom, the combination of a Weaving frame having side bars, a heddle support at each side of the weaving frame, each of said heddle supports having at least one vertical slot therein, the slots of each of said heddle supports being in alignment, a heddle rod, the ends whereof are adapted to be inserted in opposite slots, said heddle rod being independently adjustable at will in said slots to an elevated position, and retaining means co-operating with the slots to retain the ends of the heddle rod independently in their elevated positions, the said retaining means being normally in heddle rod retaining position, but adapted to be moved by the raising of the heddle rod to permit said heddle rod to reach its elevated position.

8. In a hand weaving loom, the combination of a weaving frame having side bars, a heddle support at each side of the Weaving frame, each of said heddle supports having at least one vertical slot therein, the slots of each of said heddle supports being in alignment, a heddle rod, the ends whereof are adapted to be inserted in opposite slots, said heddle rod being independently adjustable at will in said slots to an elevated position, and spring means associated with said slots, automatically actuated by the raising of the heddle rod, to support the ends of the heddle rod to retain the heddle rod in its elevated position.

9. In a hand Weaving loom, the combination of a weaving frame having side bars, a heddle support at each side of the Weaving frame, each of said heddle supports having a series of vertical slots therein, the slots of each of said heddle supports being aligned in pairs, a corresponding series of heddle rods, the endsV whereof are adapted to be inserted in opposite pairs of said slots, said heddle rods normally lying at the lower portion of said slots, said heddle rods being independently adjustable at will in said slots to an elevated position, and spring means co-operating With the slots of each of said heddle supports and adapted to be automatically actuated by the raising of the heddle rods to retain the heddle rods in their elevated position, the spring means (3o-operating with the slots of eaoli heddle support being movable by a single manual operation to substantially simultaneously release the elevated ends of the rods in all the slots of such heddle support and permit them to return to normal position.

FREDERICK E. ROBSON.